14 best fish pond heaters

Fish pond heaters are essential devices used to maintain a stable and suitable water temperature in outdoor fish ponds, especially during colder months or in regions with seasonal temperature fluctuations. These heaters are commonly used in ornamental fish ponds, koi ponds, and other outdoor aquatic environments to ensure the well-being of fish and aquatic plants. Here's what you need to know about fish pond heaters:

  1. Purpose: Fish pond heaters are primarily designed to prevent water temperature from dropping to levels that could be harmful or fatal to fish and plants. They help maintain a consistent temperature within the pond.

  2. Types of Fish Pond Heaters:

    • Submersible Heaters: These are placed directly into the pond water and are typically used for smaller ponds. They come with adjustable thermostats to set the desired temperature.
    • Floating Heaters: Floating heaters sit on the surface of the water and heat the surrounding water.They are suitable for larger ponds and are often used to prevent ice formation in extremely cold climates.
    • De-Icers: De-icers are designed specifically to keep a hole in the ice, allowing for gas exchange and preventing the buildup of harmful gases under the ice cover.
  3. Temperature Control: Most fish pond heaters have a thermostat or temperature control knob that allows you to set the desired water temperature. They will automatically turn on and off to maintain this temperature.

  4. Heating Capacity: It's important to choose a fish pond heater with the appropriate heating capacity for the size of your pond. Manufacturers typically provide guidelines for the recommended pond size for each heater model.

  5. Energy Efficiency: Some pond heaters are designed to be energy-efficient, helping to reduce electricity costs while maintaining the pond's temperature.

  6. Safety Features: Look for heaters with safety features such as automatic shut-off in case of overheating or when the water level gets too low.

  7. Installation: Proper installation and positioning of the heater are crucial. Submersible heaters should be placed in an area with good water circulation, while floating heaters should have enough space to float freely without obstruction.

  8. Winterization: In colder climates, it's essential to properly winterize your fish pond, which may include insulating the pond or using additional heating methods like de-icers.

  9. Compatibility: Ensure that the fish pond heater you choose is compatible with the type of fish and aquatic plants you have in your pond, as different species have varying temperature requirements.

  10. Regular Maintenance: Regularly clean and inspect your fish pond heater to ensure it functions correctly and does not become clogged with debris.

Fish pond heaters play a crucial role in maintaining a stable and healthy environment for fish and aquatic life in outdoor ponds, especially during adverse weather conditions. Proper selection, installation, and maintenance of a fish pond heater are essential for the well-being of your aquatic pets and the overall health of your pond ecosystem.

Below you can find our editor's choice of the best fish pond heaters on the market
  

Farm Innovators Model P-418 Premium Cast Aluminum Floating Pond De-Icer, 1,250-Watt

Farm Innovators

Based on 697 reviews Check latest price

Product description

This thermostatically controlled pond de-icer maintains a vent hole in the ice to allow harmful gasses to escape. Constructed of patented cast aluminum for ultimate efficiency and safety. This fish and plant-friendly heater is for use in ponds of 50 to 600 gallons. Industry standard 10 foot supply cord. Three year limited warranty.

  • Thermostatically Controlled Pond De-Icer Maintains A Vent Hole In The Ice To Allow Harmful Gasses To Escape
  • Constructed Of Patented Cast Aluminum For Ultimate Efficiency And Safety
  • Fish and plant-friendly heater is for use in ponds of 50 to 600 gallons
  • Industry Standard 10 Foot Supply Cord
  • 1,250 Watts
  • Thermostatically controlled pond de-icer maintains a vent hole in the ice to allow harmful gasses to escape
  • Constructed of patented cast aluminum for ultimate efficiency and safety

User questions & answers

Question: Hello. how do i use this? does the wire just in the pond, etc? it seems like a fire hazard
Answer: Yes, the 250W K&H Thermo-Pond Perfect Climate Deluxe Pond Deicer should keep your pond from freezing.
Question: Does this heater need water on it at all times when it is on? I am wanting to use it for a crock that my city water comes out of that is frozen solid
Answer: I would not recommend as mine burned 2 of my koi because it got too hot
Question: Can I use this in a horse water trough? I have a completely full 100 gallon plastic horse trough that has frozen solid
Answer: Think it may be too much for a 50 gallon. I turn off pump in winter my water fsll would slowly freeze
Question: could I use one of these products in a plastic kiddie pool so my ducks have water? Or any suggestions
Answer: It will probably keep that little pond ice-free. The fish will love it. Keep your eye on the water level so not too much evaporates.

Product features

Farm Innovators Premium Cast Aluminum Floating Pond De-Icer

By allowing your pond to completely freeze over during the winter months, the harmful gasses caused by plant decay and fish waste cannot escape the ice. This can be deadly to your fish and plants. The Farm Innovators premium cast aluminum floating pond de-icer will maintain a small vent hole in the ice to allow these harmful gasses to escape. It is thermostatically controlled to work automatically and is fish and plant-friendly. The deicer can be used in all types of ponds, and works best in ponds from 200 - 600 gallons. One year limited warranty.

Farm Innovators Cold Weather Thermo Cube Thermostatically Co

Model: TC-3

The Thermo Cube is a unique, patented electrical device that plugs into a standard 15 amp electrical outlet and turns power on automatically according to outside air temperature, saving money by using power only when temperatures require heating or cooling. The unit has two receptacles for use with more than one electrical device. Cold weather model TC-3 turns on at 35°F, off at 45°F and is ideal for home and farm applications such as pond de-icers, unheated rooms, pump houses, greenhouses, boats and RV’s. One year limited warranty.

Farm Innovators Cord Connect Water-Tight Cord Lock

Model: CC-2

The patented interlocking clamshell design enables you to simply close the covers around each end of the cord. Next, twist together to create a water-tight seal for your outdoor power connection. Never worry about your hard-to-reach cords disconnecting or being exposed to the elements. Use this handy cord lock for outdoor lighting projects, on the farm, around your hot tub, anywhere you need secure water protection for your power.

Farm Innovators Economical Birdbath De-Icer, 44-Watt

Model: B-9

Farm Innovators’ birdbath de-icer is an affordable, low-wattage birdbath de-icer. It’s ideal for shallow birdbaths

Uniquely constructed pattern heater on aluminum foil. The three-prong cord is fully grounded. One year limited warranty.

Farm Innovators Premium Cast Aluminum Birdbath De-Icer

Model: C-50

The first state of the art electric birdbath de-icer! Constructed of patented cast aluminum for ultimate efficiency and safety, this de-icer is thermostatically controlled to operate only when necessary. Safe in all birdbaths. Uses 150-watts of power. Three year limited warranty.

Farm Innovators Decorative Heated Rock Bird Bath De-Icer

Model: HR-75.

This decorative birdbath de-icer is constructed of cast aluminum with a decorative colored finish to resemble a flat rock. It’s thermostatically controlled to operate only when necessary and is safe in all birdbaths. Three year limited warranty.

Farm Innovators 3-in-1 Heated Birdbath, 75-Watt, Terra Cotta

Model: BD-75.

This ‘All-Seasons’ thermostatically controlled birdbath heats only when necessary, costing just pennies a day to operate. Innovative design allows for 3 different mounting options; deck/post mount, clamp mount, or with legs for ground placement. The cord tucks away for warm weather use, hidden from sight. Installation is quick and easy. One year limited warranty.

Farm Innovators 3-in-1 Heated Birdbath, 75-Watt, Green Color

Model: GBD-75.

This ‘All-Seasons’ thermostatically controlled birdbath heats only when necessary, costing just pennies a day to operate. Innovative design allows for 3 different mounting options; deck/post mount, clamp mount, or with legs for ground placement. The cord tucks away for warm weather use, hidden from sight. Installation is quick and easy. One year limited warranty.

Farm Innovators Four Seasons Grounded Heated Birdbath

Model: FS-1.

This attractive sand coated year-round oasis has a concealed integrated heating element. The cord tucks away for warm weather use, hidden from sight. Thermostatically controlled to operate only when necessary, this birdbath costs only pennies a day to operate. Uses 70-watt power. One year limited warranty.

TetraPond De-Icer, Thermostatically Controlled Winter Survival Solution For Fish, UL Listed

Tetra Pond

Based on 1 reviews Check latest price

Product description

For 50 years, fishkeeping enthusiasts have looked to the Tetra name for products and solutions that add ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need–-from a large variety of quality fish food and innovative equipment to test kits and decor. In cold weather, toxic gases caused by decaying matter and fish waste can become trapped under the ice by releasing harmful pond gases. The TetraPond De-Icer helps release harmful pond gases by keeping an area of the pond ice-free. It features include a natural stone finish that blends in with your ponds surroundings. This product is 300 watts. Energy-efficient thermostat control shuts off power when not needed. UL listed. Effective to - 20°F (-28.8°C). 15 foot cord. 3-year limited warranty. The TetraPond De-Icer helps fish stay healthy all winter long making it your winter survival solution for fish!

  • POND DE-ICER Keeps an area of your pond free from ice
  • WINTER SURVIVAL SOLUTION Allows toxic gases from decaying matter to escape from under ice during the winter
  • EFFECTIVE Works in temperatures as low as -20 degrees
  • 300-WATTS Features a 15 foot power cord and thermostatically controlled shutoff
  • NATURAL FINISH Stone finish complement’s your pond’s surroundings

User questions & answers

Question: I have a small pumphouse...pump not below frostline...is set in the hole will it keep area from freezing
Answer: The Farm Innovators Floating Pond De Icer is designed to keep your decorative water garden free of potentially harmful surface forming ice in cold climates. A virtually indestructible cast aluminum body houses the powerful 1,250 watt heating element which quickly opens a hole in the surface of your pond allowing harmful gases to escape. The Farm Innovators Floating Pond Deicer is thermostatically controlled and turns on only when temperatures drop below 35°F. The Farm Innovators Floating Pond De-Icer comes with a 10' power cord and is safe for rubber and plastic liners.
Question: does it float
Answer: The bottom of the heater gets hot however it does not sit fully flat due to the power cable entering thru the bottom.If your crock does not have water in it and the temp goes below 35 degress it will remain on so keep that in consideration.It gets hot enough that it does melt ice. However depending on the width and depth of your crock it may not unfreeze it now or keep it totally unfrozen. I have it at the edge of my pond which is about 6 inches deep and right now with the below zero weather we have been having it is keeping a hole about 1 foot in diameter. Warmer temps in the 20's or so it keeps a larger area unfrozen.
Question: The ice has already frozen. Can I put the rock on the ice while plugged in and wait for it to melt though
Answer: No
Question: I have a fish pond, some 500 gal, with mollies, goldfish and pictus catfish. Can the thermostat setting be chg'd to come on, at say 40 deg
Answer: Yes.

Product features

TetraPond Pond De-icer, Thermostatically Controlled

Description:

Toxic gases caused by decaying matter and fish waste can become trapped under the ice by releasing harmful pond gases. The De-Icer helps release harmful pond gases by keeping an area of the pond ice-free. Features include a natural stone finish. 300 watts. Energy-efficient thermostat control shuts off power when not needed. Effective to - 20°F (-28.8°C). 15 foot cord.

AQQA Aquarium Heater, 100W 200W 300W 500W 800W Quartz Glass Submersible Heater with LED Temperature Display and External Temp Controller for Freshwater and Saltwater

AQQA

Based on 111 reviews Check latest price

Product description

🐟🐟AQQA The Greatest Advantage

AQQA is a professional company that provide aquarium products. Please contact us if you have any questions about the product and how to use it.

Your satisfaction is our goal, we are committed to give you the most sincere and thoughtful service. Hope to work for you!



🐟🐟Specification:

Item Type: Fish Tank Heater

Voltage: 110V/60Hz

Power: 100W/200W/300W

Suggest tank size: 25-35 Gallon/45-80 Gallon/ 80-95 Gallon

Temperature: 59ºF- 93 ° F (15 ° C- 34 ° C)

Cord length: 4Ft+5.9Ft

Heater Dimension: 11.4 x2.17inch

Controller Dimension: 4.7x2.8 inch



🐟🐟Feature:

Good in maintain temperature

Automatic shut-off protection

Strong suction cup tightly fix the heater to the tank

Both Suitable for fresh water and sea water aquariums



🐟🐟Note:

1. Please be sure that the heater needs to be completely sunk into water, horizontal or vertical fixed in somewhere the water flowing better; And please let the working light can be seen as clear as possible.

2. Please make sure that you have turned it off and it has cooled down completely when you need to take it out from water.

3. Please not put the aquarium heater into the sand as this will cause inaccurate heating.



🐟🐟Package Included:

1× Submersible Aquarium Heater

1× User Manual

1× Hanging Rack

2× Suction Cups

12 Month Warranty

24 Hour Professional After-sales Service



  • 🔥SAFE& DURABLE: Made of heat-resistant quartz glass and PC plastic cover, double seal material, providing explosion-proof, shatterproof, IP68 waterproof, much safer for human and your lovely fishes, your pets will no longer fear the winter
  • 🔥INTELLIGENT AUTOMATIC HEATING: Automatic constant temperature function, design with External Temperature Controller, Temperature Range is 59ºF- 93 ° F (15 ° C- 34 ° C), Hold button at the top of the controller down for 5 seconds, switch easily from Celsius to Fahrenheit. It will restart to heating when the water temp is 1℉(1° C ) off the set temp. If power is shut off, the heater will keep the temperature settings until it powers on again
  • 🔥Digital LED Display: LED display on the middle of the controller front side, Current Temp and Set Temp. If your heater is working properly, the red light will be constant on. When the temperature is reached 93℉(34℃), it will stop work, the blue light will be constant on. When the heater exposed to air and is not fully submerged, then display the blue light and E1 fault
  • 🔥EASY INSTALLATION: Easy and quick installation, submersible fish tank heater, vertical or horizontal placement using attached adjustable hanging rack and 2 suction cups. NOTE: Please make sure that the heater is completely submerged in the water before turning on the power, and install it near the water flowing area to prevent uneven heating
  • 🔥WIDE APPLICATION: Suitable for freshwater and saltwater aquariums. NOTE: Before you clean the aquarium or change water, please cut off the heater power, after 10 minute cooling then take out the heater. AQQA provide 12 Month Warranty and 24 Hour Professional After-sales Service. Please don't hesitate to contact us to get help

User questions & answers

Question: Would this heater be ok for a 10 gallon tank
Answer: The part that reads temperature is pressed up against the tank glass. Which means in actuality it is reading the tank temperature. It’s not unusual to have different thermometers be a degree or two off. I am not an expert but I would rate this thermometer is the most accurate that I’ve ever owned
Question: whats the lowest temp it can go
Answer: Flashing is warning you that the current temperature is higher than the highest temp you set or lower than the lowest te, you set. if you want it to stop flashing, just set the left small number greater than the current temp and the right small number less than the current temp. Here is the step: first short press the "fish" the left small number will flash, then press "up" to make it greater than the current temp, then short press "fish", the right small number will flash, then press "down" to make it less than the current temp. Done.
Question: Which heater is best for a 40 gallon tank
Answer: Dear friend, Both. It is aquarium thermometer , when you use it to monitor fish tank temperature, pls stick it on the outside of the tank, make the sensor beneathe the water level. It also can be a terrarium thermometer, if there is water in your tank, pls use it as same as aquarium thermometer, outside and beneath the water level. if no water in the tank, you can stick it on the inside to monitor the inside temperature.
Question: Will this work for a 25 gal hydroponic reservoir? Heavy plastic tote, not a glass aquarium
Answer: The unit has a sticky back which adheres to the glass. You can remove it, but it doesn't come off easily.

K&H Pet Products 100213385 Thermo Perfect Climate Deluxe Pond Deicer, 250 Watt, Black

K&H PET PRODUCTS

Based on 1 reviews Check latest price

Product description

Our “Perfect Climate” line has “reinvented the wheel” when it comes to keeping ice-free water available in winter ponds. Safe in all ponds and can be used as a floating de-icer out of the box or in seconds converts to a submersible de-icer! In the past, all that was readily available were energy gulping 1000 watt to 1500 watt de-icers. We’ve created a whole line of de-icers along with a convenient zone chart for consumers to choose the correct de-icer, every time! MET listed. Two year limited warranty

  • Pond deicer for outdoor ponds, see zone chart image to choose the right deicer for your pond in your zone
  • Thermostatically controlled to automatically respond to temperature changes to keep your pond from freezing over
  • Safe for all ponds and will not harm pond liners; includes a two year limited warranty
  • Converts from a floating deicer to a submersible deicer in seconds
  • This pond heater has been tested & certified by MET Labs to exceed USA/CA electrical safety standards

User questions & answers

Question: I live in zone 5. I have a 100 gallon pond which is 18" at it's deepest point. Will this product keep it from freezing solid
Answer: Yes, both the inner and outer sections are on swivels.
Question: What wattage should i buy for a old corner bath tub im using as a duck pond? It's 19in deep. I don't know how many gallons. I live in a zone
Answer: Each of the fins attaches to the pole with a set-screw and then when all the fins are attached it sits on the sealed bearing, which makes all the fins spin together, it is very well made and moves easily in the wind, but needs to be in a slightly windy area. Hope this helps.
Question: Can i use this in zone seven with a 50 gallon outdoor plasic gold fish pond? Should i keep my pump working to for circulation? Thanks
Answer: Make sure the spinner is level. If you have used a lubricant in the past, dirt and grime may have built up. I suggest to take the spinner apart and clean out the ball bearings with something like WD-40 and leave it at that.
Question: I have a very small outdoor goldfish pond/small fountain. Only about 15 gallons and only about 13" deep. Will this work and be safe for the fish
Answer: It is top heavy for stand wobbles in high wind. The copper is terrible it spots in rain and has to be cleaned if you want the shine. I am very disappointed for the price. I should not have any worries at this price.

Allied Precision 7521 1500 Watt Floating De-Icer

API

Based on 36 reviews Check latest price

Product description

small pond De-Icer. Allows people to melt ice from small ponds and other small types of body of water

  • For melting Ice

User questions & answers

Question: My pond is 200 gallon. Would this keep ut a little warmer and not get too hot
Answer: My pond has 2,500 gallons and I use the heater in the winter to increase the temperature of the water to create an open hole in the ice when there are freezing temperatures. I live in Maryland and our winters can be mild to quite cold for short periods of time. I think that it would overheat your pond unless you had it on a timer for short periods of time.
Question: will you get shocked touching the water when this is on? and at what temp. does this turn on
Answer: basically, this is a horse water heater used in the wintertime to keep the water not frozen for the horses...do you really think they will make something that would shock the horses when trying to drink???????I have no idea what temp it is when on ...I use it to keep my pond warm for the fish and it does a great job..this is the second one I bought the first one worked for 3-4 years? it just got so very rusty being in the water every winter, so the wire gave out eventually...and no IT WOULD NOT SHOCK YOU.....
Question: Why can’t it be used in an aluminum stock tank
Answer: Nowhere in the instructions does it state that it cannot be used in aluminum tanks
Question: How long is the power cable
Answer: 6 ft.

hygger 500W 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~180 Gallon for Saltwater and Freshwater

Hygger

Based on 295 reviews Check latest price

Product description

hygger 500W 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~180 Gallon for Saltwater and Freshwater.

  • 🐟LED DIGITAL DISPLAY CONTROLLER: ① Displays real-time water temperature or set temperature, three-digit display, water temperature display accurate to 0.1 °F, easy to read. ② 4 kinds of work instructions - Working/Malfunction/ Thermostatic/ Out of water, easy to understand. ③ Upgrade the buttons to increase the sense of touch, and the operation is simple and easy, just cycle the buttons.
  • 🐟RAPID HEATING: Fastest 5 seconds warming, the internal material is updated and upgraded, using titanium steel material, which is safer to use, not easy to deform, and has very strong corrosion resistance. Automatically reduces power when approaching the set temperature, fully utilizes thermal energy inertia to smoothly reach the set temperature, saving energy.
  • 🐟INTELLIGENT THERMOSTAT: Over-temperature protection prevents "cooking fish". When the water temp exceeds about 93.5 °F, start alternately flashing EE fault code; and over 97℉, the heater will stop heating automatically. When the water temp cool down to 93℉, the heater will start working automatically. In addition, it has a power-off memory function and no need to set it again.
  • 🐟ANTI-DRY PROTECTION: When the heating rod is exposed to air, display ER fault code and the heater will shut off automatically. When the heating rod is completely immersed in water, it will start working automatically. Effectively extend the service life.
  • 🐟HIGH-QUALITY MATERIALS: Built-in dual temperature probe, real-time monitoring of water temperature, temperature accuracy of ± 1 °F; high temperature resistant ABS material, no deformation and no softening, explosion-proof and anti-corrosion, no leakage of electricity. Strong suction cup bracket, can stably fix the heater in every corner of the fish tank.

User questions & answers

Question: Any idea what code e3 is
Answer: Maybe I don’t understand, but our temps have dropped to 14 degrees and it’s still pumping. To me the only way the tubes can freeze is if water is getting inside the lines I suppose if you turn off the pump and the water went in the lines it could then freeze. Chech the check valves are working.
Question: Can it be used for an outdoor pond
Answer: Any added oxygen is beneficial to any body of water. I have customers using this in 300 plastic tub ponds as well as others in 20,000+ ponds. It comes down to what you are using it for. Aeration, winter Ice control, aesthetics, etc. If you have dead areas in your pond with no circulation, then this aeration is perfect. If you have a stagnant body of water that is 1/4 acre, and think this aerator will keep the pond alive, then you will be very upset.
Question: is this weather resistant? rain....cold weather etc
Answer: As others have suggested here, you'll need to keep it covered with anything that will protect the air pump from the elements. It's advisable keep it from direct contact with the ground as well. There are a variety of ways to do this, including decorative faux rock covers with air vents designed specifically to cover air pumps.
Question: Is this over kill for a 75 gallon discus tank. i like to keep them at 86. the reason i ask is because i have 2 300’s it’s not working thanks
Answer: According to the instruction book it comes with two 25' lengths of tubing. My husband put this in, so I have to refer to the booklet. It seems the stones are about 4" across. Mine are buried in rock now so can't see them. Maybe someone else can be more specific.

DANNER MANUFACTURING 2175 Pond De-icer, red

DANNER MANUFACTURING

Based on 341 reviews Check latest price

Product description

The Floating Winter Pond De-Icer is for use in those colder locations where winter temperatures result in significant or long-term icing of Pond surfaces. It helps maintain a small opening in the frozen surface of your pond in order to release harmful gasses and helps keep fish alive during the cold winter months.

  • Power Source Type: Corded Electric
  • 120 watts of heating power
  • Extremely energy efficient
  • Thermostatic control reduces heating time & saves electricity
  • 18-foot Grounded Power Cord
  • Will not harm flexible liners or pre-formed ponds

User questions & answers

Question: Does this cord have a two- or three-prong plug
Answer: This item is only 100 watts and only 'turns on' when temperatures are around 32 degrees. Its operating cost would be minimal.
Question: Can you us an extension cord with this? My pond is not that close to the house
Answer: We have a pond that is around 800 gallon. It works in ours. This heater is only made to keep a hole in the ice so all the gasses from decaying stuff under the ice don't kill the fish. Hope this helps. Richard
Question: How do you turn it on
Answer: Although I have not measured it, I'd guess it is at least 10 feet. Very long, but it tends to "remember" the coil shape. I put rocks on the cord to keep it from pulling the unit towards shore. I would highly recommend this product for keeping a hole in the ice over the winter. I've bought 2 in the last 7 years and the only reason for the second one was that I dropped the first one and cracked it, rendering it useless. I've also discovered that when the temps get close to or fall below zero, placing a black plastic tarp over the unit will help keep it from freezing up. I have seen it melt and maintain a hole through 6-9 inches of ice. Another thing to remember that once the ice forms and you place it, future snow falls will encase the cord in ice and you will not be able to move it. Allow additional cord so it cal maintain contact with the water.
Question: Is it 120 watts or 12 watts? what does "12 watts of heating power" mean
Answer: The unit is a de-icer. Is your pond cover with ice? This is my second unit, the first one lasted 10 years with no problems. I have a Koi pond that is 3,000 gallons and 4 foot deep in the center and the pond with this cold weather is covered with ice 12 inches thick. If your pond is ice covered they suggest you drill a hole thru the ice and place the unit over the hole, it will eventually melt the ice surrounding it, just as mine did. My unit keeps a hole in the 12 inch ice as big as the entire unit. Again this is not a pond heater, it is used to keep an open hole in the ice so the gases that are harmful to the fish can escape. The unit doesn't make any noise and it only gets warm on the bottom when the thermostat calls for heat.

Product features

A history of excellence

Ever since our modest beginnings, Danner Manufacturing, a family owned and operated business, has developed and produced innovative products for hobbyists and professionals alike. Eugene Danner Sr. started planting the seeds for Danner Manufacturing in 1934 while working in the cellar of his home in Brooklyn, New York. While holding a full-time job as a factory manager, Eugene found great pride creating the Danner business on his time off from his regular full-time job duties.

Improving the Art of Fluid Motion for Over 80 Years

The brands which we manufacture and market are: Supreme Aquarium, Pondmaster, ProLine, Supreme Hydro, Pool-Care and Pondmaster ECO. These brands can be found in the Aquarium, Water Gardening, Pond, Pool & Spa, OEM and Hydroponic industries throughout North America and the offshore markets. We are committed to providing our customers with high quality and reasonably priced products, creating the best value.

FLOATING POND DE-ICER 200 WATT POND HEATER-POND DE ICER

COLIBROX

Based on 20 reviews Check latest price

Product description

Large, low-profile pond de-icer resists tipping against blustery winter winds. The unique design of the Pond Saucer minimizes heat loss due to frigid winds for reliable performance. Maintains a vent hole in the ice to ensure proper gas exchange throughout the winter. Thermostatically-controlled de-icer operates only when necessary for reliable energy-efficient performance Gª( turns on automatically at 35-¬F and turns off when the water temperature is at 45-¬F. Made from easy-to-clean, weather resistant thermoplastic material. 200 watts. 12-1/2" diameter and only 1-3/4" high. 10 ft power cord.

  • Installation: The de-icer should be placed at the northwest corner of the pond, up against the liner. In large or deep ponds, place unit in the shallowest part of the pond, preferably near a bank. The unit will turn on automatically when the temperature around the heating element is at 35-¬F and turns off when the water temperature is at 45-¬F (at -10-¬F air temperature).
  • Air Test: Perform an "Air Test" to determine whether the de-icer is heating properly and the thermostat is functioning properly.
  • Place the unplugged de-icer into the freezer for 30 to 45 minutes to activate the thermostat.
  • Remove the de-icer from the freezer and quickly plug the de-icer into a working outlet.
  • The unit will heat up and then shut off, indicated by a slight clicking sound. The clicking sound means the thermostat is working properly.

User questions & answers

Question: how long is the power cord
Answer: Yes. You only need to keep a hole open in the event that the pond freezes, you are not going to heat all the pond water.
Question: Is this the correct size for a 50 gallon pond
Answer: Three years as stated on box.
Question: Is the “slight clicking sound” more like a loud pop? Something in our yard is making that sound occasionally from the backyard - just want to be sure
Answer: it helps to keep an opening in the frozen water so that toxic gases can escape.
Question: Can this work for a 2000 gallons
Answer: I never noted it, but can estimate it for you. The US average electrical rate is $0.12 per kilowatt hour. Running this heater 24/7 would cost approximately $30/month to operate. FYI, i pyrchased this heater specific all due to its low cost to operate compared to other higher wattage heaters. One caution though, if you have Koi, you still need to run a aerator, I learned the this lesson the hard way.

K&H Pet Products 100213382 Thermo 3.0 Pond Deicer, 100 Watts, Black

K&H PET PRODUCTS

Based on 1 reviews Check latest price

Product description

For ponds up to 1000 gallons. The world's most energy-efficient pond heater. Thermo-Pond is a unique pond heater that keeps a hole through the ice in backyard ponds for just pennies a day. In fact, Thermo-Pond can save up to $30.00 a month in electricity VS. those high wattage stock tank style deicers. Just think, Thermo-Pond pays for itself in as little as 2 months. Thermo-Pond floats on top of the water and is thermostatically controlled to never get hot. Unlike some other heaters, Thermo-Pond will never burn a pond liner or plastic pond. It naturally allows the pond to ice over while maintaining a hole through the ice. Allowing that gas exchange can help keep a healthier environment during the winter months Thermo-Pond should be used in ponds that are deep enough to allow plenty of livable water under the iced portion of the pond. MET safety listed. One year limited warranty.

  • The world's most successful and efficient low-wattage pond de-icer
  • Uses only 100 Watts and maintains a hole in backyard pond ice for just pennies a day
  • Floats on top of the water and is completely safe when used with a pond liner or plastic pond
  • Fish friendly - assists the escape of toxic gases all winter long to help maintain a toxic-free environment for fish living under the ice
  • Tested in northern Wisconsin at temperatures of 30° below zero Fahrenheit and is MET Listed

User questions & answers

Question: What is the average monthly cost to run this heater? I have heard that 1,500 watt heaters can cost up to 75$ a month to run
Answer: How much of an area it will keep open depends on the size of the pond and the outside temperature. It's purpose is to keep a hole in the surface, for gas exchange. I've used it in a very large pond and found it kept a sizable area open though, unless extremely cold temps last for days.
Question: Our pond is only 55 gal. Is this heater ok to use? Or do you know a model that would work
Answer: Thanks for asking! Yes, this product floats. For more help contact TetraPond at [email protected]. We are happy to help!
Question: How long is the power cord
Answer: No. I have had customers try this. It does not work. Boil some water on the stove and pour onto the ice until you melt a hole to float the heater in.
Question: I just bought this and had it in my pond for a day & noticed no change. How do I know if its working? It makes no noise & doesn't seem to get warm
Answer: As the customers stated, no, you cannot set this like a heater. Your mollies and pictus cannot be housed outdoors over winter, although the goldfish can be.

KASANMU Aquarium Heater 50W/100W/200W/500W Submersible QuartzGlass Explosion-Proof Heating Rod with Adjustable Temperature Knob and Temperature Indicator Fish Tank Heater is Suitable Various Fishtank

KASANMU

Based on 372 reviews Check latest price

Product description

Accessories: wire length 3.28 feet.equipped with 2 powerful suction cups, so that the heating rod can be firmly fixed in the fish tank.

Cautions:

1.The heating rod temperature should be adjusted according to the actual room temperature of the fish tank.

2.When the device is in use, the heating rod must be completely immersed in water to avoid dry burning damage to the heating rod. Place the heater bar vertically or horizontally in the aquarium to make the indicator light as clear as possible. Then plug in the power cord and the indicator lights up to indicate that it is working.

3. Please clean the heater regularly and keep it in good working condition.

4.When you need to remove the heater from the water, first unplug the power cord and carefully remove it after cooling.

  • Easy to operate: adjust the temperature control is simple, easy to read the temperature indicators on the heating rod, there are two suction cups easy to fix the heating rod and easy to hide in the fish tank.
  • Precise temperature control: The top adopts knob type temperature adjustment, the adjustable temperature is 68°F-93°F, the thermal conductivity is good, the heating speed is fast and accurate, and the error is small.
  • Wide range of applications: 100W submersible heating rods are suitable for 10 to 25 gallons fish tanks, suitable for salt water and freshwater fish tanks.
  • Quality assurance: use thick quartz glass material, explosion-proof anti-corrosion, double-layer waterproof insulation, IP68 high grade waterproof standard.
  • After-sales service: Provide you with 12 months of 24/7 customer service. If you have any questions, please contact us directly, we will provide you with a professional solution.

User questions & answers

Question: Can it be used in a bow fish tank
Answer: As long as you follow the heater requirements in how it is positioned in the aquarium
Question: Do I need to unplug the power once the aquarium heater reaches the set temperature
Answer: No, the heater should turn itself off when it reaches the set temperature, and then back on to maintain said temperature.
Question: Is the temperature control of this heating rod accurate
Answer: After reaching the set temperature, it will automatically stop heating, temperature control is lasting and accurate.
Question: How do I know the heating rod is working
Answer: When you plug in the plug and turn on the power, turn the knob to set the temperature you want. When the work light turns red, it proves that the heating rod is already working.

Product features

Heating rod placement instructions

  1. Since the heating rod is heated rapidly, it is necessary to place the heating rod in a position where the water flow is as fast as possible to uniformly heat the water in the aquarium.
  2. Do not bury the heating rod in the sand and gravel at the bottom of the aquarium, which will cause damage to the heating rod.

Explosion-proof tube

Anti-collision rubber head on the bottom

Rapid heat accumulation

Fast heating and good thermal conductivity

Temperature scale display

Simple and easy to adjust temperature

LUYS Aquarium Heater, Upgraded 300W/500W Fish Tank Heater with Intelligent Leaving Water Automatically Stop Heating and Over Temperature Protection System, Suitable for Marine Saltwater and Freshwater

LUYS

Based on 200 reviews Check latest price

Product description

🐳The best material protects you and your aquatic life:

①Quartz heating rod: high temperature resistance, corrosion resistance, good thermal stability, and good light transmission performance.

②PPS hard plastic: has excellent high temperature resistance, corrosion resistance, radiation resistance, flame retardant, balanced physical and mechanical properties, excellent dimensional stability and excellent electrical properties.

③Nickel-chromium wire: high strength at high temperature. After long-term use, it will be cooled down. The material will not become brittle. Fully oxidized nickel-chromium alloy has a higher emissivity than iron-chromium aluminum alloy. It is non-magnetic. In addition to sulfur atmosphere, Good corrosion resistance.



🐳How to use the temp setting?

Press the button on the controller over and over, the set temp digits will go circularly from 62℉ to 93℉, when you set it to the digit you want, stop and wait the led flashing for 4 times, then the setting is done and the led will go on displaying the water temp.



🐳How to switch between Fahrenheit and Celsius?

You only need to press and hold the temperature adjustment button on the LED thermostat to easily convert between Fahrenheit and Celsius. The facility temperature can be adjusted from 17-34 degrees Celsius, and the Fahrenheit temperature can be adjusted from 62-93 degrees Fahrenheit. The operation is very simple!



🐳Attention in use:

Before the aquarium heater is turned on, you need to completely submerge the heating rod in the water. The attached two super powerful suction cups can be firmly fixed on the side of the aquarium or at the bottom of the aquarium.



🐳After-sales service:

LUYS has a strong after-sales service team, if you have any questions or suggestions, please feel free to contact us!

  • 🐠【Intelligent Water Sensor and Over Temperature Protection】This aquarium heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.
  • 🐠【Explosion-proof Quartz Material】The aquarium heater is made of high-quality quartz glass tube, it's very durable and explosion-proof, this fish tank heater can be used for saltwater and freshwater aquariums, which is pretty shatter-proof and blast-proof and prevents electricity leakage. And the stronger black protective container is scald-preventing for your aquatic organisms and your safety.
  • 🐠【Rapid Heating System】The voltage of this aquarium heater is 100-120V/50-60HZ, power 500W, Universal two-pin plug, heater rod length 12.99 inch, 500W submersible heater for fish tank 60-120 gallon, Temp range: 62-93℉. The heating tube can conduct heat quickly and fully contact with water to achieve rapid heating effect.
  • 🐠【Digital LED Display Controller】the external IC temp controller of the fish tank heater can show the water temp with 2 red LED digits. The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds. To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.
  • 🐠【Wide Range of Use】This aquarium heater is suitable for many occasions. The fish market is a common place for us. It can maintain the freshness of fish. They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept. There are strong suction cups on the heater guard and the thermometer, it's easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.

User questions & answers

Question: Can this heater be position horizontally
Answer: Good day! Yes, it has two suction cups, you can place it horizontally at the bottom of the fish tank, hope this will help you!
Question: I have a 60-gallon fish tank. should i choose a 300w or 500w heater
Answer: A 60 gallon tank only requires at the most 300 watts
Question: It can be use in a 120 pond outdoor
Answer: Their specs say it can be used in a 120 gallon pond. I'd say it would depend on the circulation and how insulated the pond is. Also, the electronics would need to be in a weatherproof housing.
Question: What happens if the power goes out and comes back on? Does it reset to 82F
Answer: I read the instructions and features again and it does not mention anything about the temp we set being memorized. It just says it saves the temp when its set and that if the water reaches above 94 degrees it automatically goes back to 82. So I would say yes it goes back to 82 degrees. Which isnt too bad for my turtles but not sure about fish if someone isnt home to reset it again. Hope this helps.

Farm Innovators Heated Electric Pond Koi Fish Stock Heater Convertible De-icer Ice Chaser H418c

Farm Innovators

Based on 20 reviews Check latest price

Product description

The Farm Innovators ICE CHASER is a high quality versatile small pond / stock tank convertible de-icer which can easily be changed back and forth between a floating and submersible de-icer. The ICE CHASER features all cast aluminum construction for ultimate safety and efficiency and has a thermostatically controlled enclosed 1250 watt element which is safe in all tanks, metal and plastic. The ICE CHASER comes complete with a heavy duty wire wrapped electric cord. The unit has a thermostat in it and will only kick on if the water temperature approaches freezing so it's not recommended for warm climate regions.

  • This de-icer will keep your tank from freezing in the winter and works best in tanks of 70 to 200 gallons
  • Versatile design which allows this stock tank heater to be used as a floating or submersible device
  • Thermostatically controlled to turn on and off automatically
  • The cord is protected by a metal spring which serves to deter chewing
  • The patented cast aluminum design is safe, reliable, and efficient

User questions & answers

Question: do you remove the styrofoam underneath
Answer: My husband did!
Question: does this unit float? I do not want it to damage pond liner. Also we live in WI our winters are brutal will this hold up
Answer: Honestly, I can't say for certain, but I thought so. More importantly, I don't think it matters. I own two of these weather vanes from Good Directions, one of which is nearly four years old (Large Rooster). It looks awesome and we get lots of complements about our choice. Thus I purchased a second unit for our cottage. My only advice is to be certain you shop for the best price. There is a surprisingly big cost difference between various resellers.
Question: How long is the power cord
Answer: I'm not sure what a garden pole is but my item came just as shown in the photo. That is, no pole. I had to order a roof mount separately to mount it on the roof of my garden shed. It is a very nice unit and I highly recommend it.
Question: Does this heat also? I live in California, beach area sonit gets cold at night but not freezing
Answer: The weather vane is manufactured in India.

VIVOSUN 50W-500W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller

VIVOSUN

Based on 1 reviews Check latest price
  • PRECISE TEMPERATURE CONTROL: An intelligent IC chip controls the heater temperature, making the temperature difference within ±1℃/±2ºF; Provide the best living environment for your aquatic creatures
  • SAFETY GUARANTEE: Made with IP68, the highest waterproof level; and a titanium tube material that features explosion-proof and anti-corrosion engineering, which makes this submersible heater more resistant to damage while heating better than traditional glass heaters; Built with overheat and water shortage protection
  • EXTERNAL TEMPERATURE CONTROLLER: The touch-button controller adjusts the temperature without getting your hands wet. It’s easy to control the temp from 68℉/20°C to 94℉/34°C; Check the size chart to find your desired fish tank heater
  • EASY TO SETUP: 300W submersible heater is suitable for 31.7 to 66 gallons aquariums; Vertical or horizontal installation and ensure the device is fully submerged underwater
  • WIDE COMPATIBILITY: The fish tank aquarium heater has CE, FCC and ROHS certification and the plug has a UL certification; Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems

User questions & answers

Question: did anyone else almost boil there fish alive with this product? sopped working correctly after 4 months
Answer: Firstly,you need to set the temperature.If you set at 78,if the water in the tank is lower than the setting,the heater will be heated, the red light is on. After heating,the water in the tank up to the temperature of the setting,the heater won’t heat up, the red light is off. So don't worry about the light shock. If there is any problem,feel free to contact me .
Question: Can the temperature be displayed in Fahrenheit
Answer: I think its supposed to stay on
Question: How do i claim warranty? 300 watt heater failed at 11 months. This has killed several saltwater fish
Answer: I don't see any issue of mounting this unit in a circular shaped tank. One major issue is to make sure that the unit is totally submerged preventing it from burning out. There is a line on it stating it must be below water. Do this... and it will last.
Question: I have this heater for a few months and know it blinking e7 how do i fix it
Answer: The aquarium heater 50W is about 9.5 inch long.Hope this helps you.

Product features

VIVOSUN aquarium heater for cold blooded creatures

VIVOSUN submersible aquarium heaters are more efficient, and the heating unit is completely submerged in the water, providing more consistent heating to the aquarium.

Features:

Intelligent Indicator Light

Red Light Water temperature is below set range, heating function will engage and increase temperature automatically

Blue Light Water temperature is within desired set range, monitoring function is engaged

2 stable suction cup angles

The 2 suction cups attached can suck the heating rod on the fish tank wall

Set the Temperature Conveniently

  • Press set button to start the temperature setting. The LED display will start to flash, continue pressing set button, the number in LED screen will circulate from 68 to 94 °F
  • Press SET for 5 seconds for switching between Fahrenheit and Celsius

Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 50 Gallon Fish Tank

IBAY

Based on 5 reviews Check latest price

Product description

300W Aquarium Heater, 11 x 1 x 1 in, 1.5M/4.9ft cable

This heater is simple and beautiful in appearance, placed in your aquarium,unobtrusive, and will not destroy the fish tank landscape. You and your fish will like it.

We adopted 2mm thickened quartz glass, much safer for both human and animals. And it will turn off automatically when reaches temperature you set, without overheating.

For the products, we have been keeping improving. Please contact us when there isany question or suggestion in use, we offer the excellent service and think highly of every user’s opinions.

Features:

1. Good in maintain temp.

2. Both suitable for freshwater and saltwater.

3. Complete accessories: An extra stick-on thermometer(just peel and stick) and 2 extra suction cups are provided for spare(total 3).

4.  Better construction: Adopt 10-slot multi-branched heating wire ceramic frame, better heat dissipation, 11 x 1 x 1inch, saving more space for your fish.

Cautions:

1. The heating part must be fully submerged in the water to avoid dry-burning,otherwise will cause damage to heater.

2. Please clean the heater regularly to remove dirt from the heating tube and keep it in good working condition.

3. Please make sure that you have turned it off and it has cooled down completely when you need to take it out from water.

4. It is forbidden to pull the heater adjustment knob outwards.

  • Explosion Proof: 2mm thickened explosion proof glass, 33% thicker than the normal, safer for both human and animals.
  • Application:300W water heater is suitable for 20 – 50 gallon tank, also suitable for both saltwater and freshwater.
  • Accurate Temperature: Temperatures from 68°F to 93°F (20°C - 34°C), come with a thermometer sticker, convenient to detect the water temperature without another pay.
  • Long Service Life: Adopt 10-slot multi-branched heating wire ceramic frame, shorter length, 11*1*1 in(27*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes.
  • Complete Accessories and Warranty: Except for thermometer, also equipped with 3 suction cups, one for replacement, and offer 12 months warranty, leave you no worries after you buy it.

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