12 best pond heaters

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.

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.

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.

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.

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.

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.

Product description

The Aquascape 300-Watt Pond De-Icer is ideal for keeping a small hole in the ice during cold winter months, and ensures proper gas exchange, helping keep fish alive throughout the winter. Maintaining this opening is paramount for the safety of your fish. The Aquascape 300-watt Pond De- Icer is energy efficient and the De-Icer's stainless steel construction will prevent corrosion and cracking throughout the year, providing years of trouble-free operation. A built-in LED light will indicate when the De-Icer is in use, making it easy to check on its functionality throughout the season. Aquascape is passionate about the products we produce, providing unique products, designs, and features that stand above the competition.

• Ideal for keeping a small hole opening the ice during cold winter months
• Ensures proper gas exchange; helps prevent winter fish loss and increases oxygen levels
• Energy efficient design helps keep down operation cost
• Stainless steel construction prevents corrosion and cracking
• Built-in LED light indicates when heater is in use; 22-foot cord; 3-year limited

User questions & answers

Question:	Will this work for a 5, 000 gallon Koi pond? Getting ready to set a pond up and want to make sure i have the right things for a under ground pond
Answer:	I purchased this for my chicken waterer that I made from a 35 gallon square trash can with horizontal nipples on three sides. It works awesomely! I was worried the 250w heater was not going to be warm enough, so I went with this 500w heater. I have it floating. My nipples are less than twelve inches from the ground. When the garbage can was full of water a few days ago and temperatures dropped to -3 F degrees, the water was nice and warm compared to the outside temps. This heater exceeded my expectations!! Based on my experience, I would purchase only one 750w for your 55 gallon drum. I know you were asking in July, but my experience is based on this winter. Perhaps this will help others. I hope you made the right decision.
Question:	What is the warranty on the pond deicer Aquascape
Answer:	Solar power doesn’t have a steady current (it fluctuates) and therefore it will not work properly.
Question:	Does it help to keep water in the pond between 60 to 68 degree F
Answer:	Adding one comment to the earlier answer. If your water level gets low (this is a fairly tall heater so you should never go below about 6" of water) and the outside temp is low, there is no safety turnoff. So if it's 30 out and the livestock drink the tank down to a couple inches of water, the heater will glow red until you add water. Not a problem with the product since it can't tell if it is surrounded by cold water or air, just a tip to keep the water at a minimum depth so you don't waste power.
Question:	Hi. Does this heater ad a lot to your electric bill?? Thanks
Answer:	I don't know what kind of breaker you're on. If you're on a 10 or 20 amp breaker, it all depends on what else you've got on that circuit. If you're on 120 volt AC current and you add two 750 watt tank heaters, you've added a 25 amp load to your breaker, and it kicked off. I'd advise putting each heater on separate breakers. They may be simply overloading it. Despite my glowing review, which was based on last year's mild winter, this year we have more sub-zero weather. The 750 watt heater in a 75 gallon tank crapped out on me at -10F and so did a separate 40 gallon tank with the 500 watt heater. I then used an old 1,000 watt floater I had around, and that died last night. I had to get two submersible 1500 watt heaters at the local feed & grain. As I type this, it's going down to -12F and I just blew the house breaker I have one of the tank heaters plugged into. It's a 1902 house that got electricity in 1931 and an oddly configured 1964 upgrade. The parlor lights, porch light, and outside outlet are all on one 20 amp circuit as well as pet heaters for two outside cats, and a heated water dish. I'm on my way out to unplug the cord, dig 50 feet of it out of the snow, and try plugging it into a 20 amp plug in my shop in the barn - have to make sure the other heater, which is plugged into a barn outlet, isn't on the same breaker. Trouble is, if it goes out in the night, I won't know it. Well, good luck to us all.

Product features

Pond Netting

Keep leaves and predators out! Durable construction prevents tearing.

Pond Thermometer

Monitor pond temperature throughout the year. Easy to read.

Pond Aerator

Helps keep hole in water for necessary de-gassing. Keeps your pond healthy throughout the year.

Cold Water Beneficial Bacteria

Contains 7 pure strains of concentrated beneficial bacteria. Perfect for fall and spring!

About Aquascape

Aquascape is not like any other manufacturer of pond and water feature products in the world. We are passionate about the products we produce, because we enjoy living with them ourselves.

Aquascape focuses on an ecosystem approach to water features that relies on the most natural balance of circulation, filtration, plants, fish, and rocks and gravel to ensure sustainability.

We have many unique products, designs, and features that we've created to expand the enjoyment, improve the performance and or reduce the cost of owning a water feature.

Product description

The Thermo Pond Perfect Climate Submersible Pond De-Icer is the first pond de-icer designed with all ponds in mind, both small and large. When used as a submersible, the Thermo Pond Perfect Climate Submersible Pond De-Icer is designed to keep open water in ponds up to 300 gallons, 18 inches deep or less. The de-icer is thermostatically controlled and all heating elements are enclosed so they will not harm or burn your pond liner. It also has inlets molded into the design so the heater can be used in tandem with air or water pumps to increase circulation. Thermo Pond Perfect Climate Submersible Pond De-Icer is not designed to be a submersible pond de-icer in ponds larger than 300 gallons. The best time to install your Thermo-Pond Perfect Climate Submersible Pond De-Icer is before your pond freezes over.

• Thermostatically controlled
• Perfect for small or preformed ponds
• Will not burn preformed ponds or liners, no additional parts required
• Inlets allow use with air or water pumps
• 12 foot cord

User questions & answers

Question:	Does this actually work and is it well on your electric bill
Answer:	No. You hook it into one you already have.
Question:	Have a 38" x 14" deep 35 gallon preformed plastic circular pond with frogs that showed up this summer still in it. Will this be too big/hot
Answer:	My pond is 1000 gallons in Wisconsin and it keeps it warm enough to keep the koi in all winter
Question:	Can I use this in a hot tub until the repair man can put in a new heater? Will it harm the fiberglass bottom
Answer:	Yes, too big. We bought this and used last winter in our 2000 gallon koi pond and it worked well, keeping one end of the pond from freezing and an opening about 3 foot in diameter around the heater. My guess is that your estimation of 50 gallons is low (even for a small pond) but even if 100 gallons, you will probably overheat and kill your fish. Reference: 50 gallons is only about 6.7 cubic feet (a large indoor aquarium).
Question:	How do I know if the unit is on? I have it in the pond and it doesn't even feel warm. Does it turn on at a certain temperature
Answer:	From the Lagunapond website: "The light is red when the unit is warming up. Once the de-icer reaches its pre-set temperature, the light will switch to green. If the unit needs to heat up again due to a change in water temperature, the red light will come back on."

Product features

K&H Perfect Climate Submersible Pond Deicer

The Thermo-Pond Perfect Climate Submersible Pond De-icer was designed specifically for small and preformed ponds up to 300 gallons and 18 inches or less in depth. Even in sub-zero temperatures, it prevents these ponds from freezing over and facilitates the gas exchange needed to help pond fish survive the winter.

Economical

While other high-wattage de-icers can drive electric bills through the roof, the K&H Perfect Climate Submersible Deicer is easy on your budget. It consumes a mere 300 watts of power and operates for just pennies a day.

Internal thermostats automatically turn the K&H Perfect Climate Submersible Deicer on and off as needed to keep your pond from freezing over. Unlike some other heaters, K&H Pond Deicers will never burn a pond liner or plastic pond.

Safety

The K&H Perfect Climate Submersible has been tested and certified by MET Labs to meet their high standards for electrical product safety. This deicer will not burn your pond or liner and will not harm your fish.

• 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

Product description

The Laguna PowerHeat De-Icer is for ponds whose temperatures are down to 20 degrees Fahrenheit. The De-Icer is equipped with a 15-watt top-mounted heating element that melts snow on contact, keeping the unit free from snowy build-up. The PowerHeat De-Icer is not meant to heat your pond, but only to aid in gas exchange.

• De-Icer for ponds whose temperatures are down to 20 degrees Fahrenheit
• Highly-visible LED pilot light that indicates when unit is on
• Integrated thermostat shuts off the De-Icer when it overheats, protecting internal components from damage
• 315 watts. 7 meter (22 feet) electrical cord with grounded plug
• Aids in gas exchange by keeping ice from forming around heater

User questions & answers

Question:	Does this come with some sort of pump that circulates water
Answer:	No, t keeps the heater floating.
Question:	I have a 750 gallon pond; is this deicer big enough or do i need two
Answer:	Yes it floats. I have it in my goldfish pond here and so far I have no ice on the pond at all (i also have two 500 watt heaters). So far its gotten down to 0 here with ice and snow and the deicer is working well.
Question:	I have a small Koi Fish Pond (maybe 50 gallons) is this too big for it
Answer:	Hello, The power cord length is 10 feet. Thank you
Question:	What do the green and red lights mean on the laguna deicer
Answer:	No it doesn't. It only kicks on if the water approaches freezing.

Product description

Product Features:

1. 110V-120V/60HZ 6-foot power cord,

2. Fully submersible.

3. Universal heater for marine, freshwater or tropical aquariums

4.automatic safety shut-off feature, and overheating protection.



Available In:

Length - 9" 15-30 Gallons, 100 Watts

Length - 9.5" 30-50 Gallons, 150 Watts

Length - 11" 40-60 Gallons, 200 Watts

Length - 11" 50-80 Gallons, 300 Watts



Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and were designed to absorb impacts, making them extremely durable.

A power indicator light turns on when the unit is heating, Can be positioned at a vertical or horizontal angle. Can be used in fresh or saltwater fish tanks. 6-Foot power cord.

• ★300W aquarium heater is suitable for 50 to 80 gallons aquariums,Length - 11 inch,voltage 110-120V, power cord is 6ft, please choose the right wattage aquarium heater according to our size chart.
• ★It shows an area to adjust the temperature. It's not exactly accurate but it turns easy and can be adjusted at small intervals.
• ★Explosion Proof: 2mm thickened quartz glass,can be used in fresh water and salt water aquariums,easy to hide in the tank.
• ★Precise temperature dial from 68 to 89°F allows for complete control of aquatic climate within a 1-degree difference.
• ★Adjustable Aquarium Fish Tank Water Heater Sensitive and reliable thermostat maintains uniform temperature. Automatic shut off when the temperature is reached

User questions & answers

Question:	Can the thermometer be mounted inside the tank. Somewhere here said yes but an example I saw had it mounted outside the glass. Which is correct
Answer:	The small pointy end mounts in the tank and then the temperature reading display mounts on the outside they are connected.
Question:	I set the temperature 77 but it heats 83.4 what should I do
Answer:	Send it back it must not be working correctly because if you set it add 77 it should stay there
Question:	Is this heater UL listed
Answer:	Yes the 150W heater
Question:	Digital Thermometer supplied with this heater is almost 3°F off. Is there a way to calibrate it
Answer:	I would not know how to calibrate it, but just monitor the tank temp. I do not look at the temp on the heater, just the tank water and this heater holds it very constant.

Product description

U-picks Submersible Aquarium Heater 500W



FEATURES:

1.Made of thicker quartz, this heater is shatter-proof and blast-proof.

2.The heater cover is compact designed, which is heat resistant that will protect you little fish from scalding.

3.With dual temperature displays, you can easily set and read the temperature at the same time.

4.Smart heating, provide stable water temperature for your beloved fish.



WHAT YOU GET:

1* 100W Aquarium Heater with Heater Protector

1* External Temp Controller

2* Suckers (for Heater)

2* Fixing Tools (for controller)

1* User Manual

1* Package Box



NOTES:

1. For your safety and the best purchase experience, please carefully read and follow the instructions, and contact immediately if there is any issue.

2. The whole body of heater must be fully submerged under water during working, but not buried in sand or mud.

3. The controller must be NEVER placed in water.

4. Before installing heater, please cut off all the devices in the aquarium.

5. Unplug the heater and wait for AT LEAST 15 minutes to let it cool down before you remove it.

6. It’s better to install the heater near where the water flow is strong to make the entire aquarium in the same temp.

7. Please DO NOT use it if the wire or heater damaged.

• [Fully Submersible Aquarium Heater]---Voltage 110-120V/60HZ, power 500 watt, heater rod length 10.8 inches, suitable for aquarium/fish/turtle/betta tank 80-130 gallon. The controller power cord is 47 inches, The heater power cord is 67 inches and the temperature control range from 68~93°F.
• [Smart Heating]---When the water temperature is lower than the set temperature (red indicator), the fish heater starts to work until the water temperature reaches the set temperature (blue indicator). It can always provide stable water temperature for your beloved fish.
• [External Controller]---This 500W submersible heater is adjusted by an external controller, which you can mount on the outside edge of the tank. It’s convenient and safe for you to set the temperature, no need to take the heater out from water and risk burning yourself.
• [Dual Temp Displays]---With dual accurate LED digital temperature displays, you can read & set the water temperature at the same time. It is very easy and convenient for you to recognize and observe the temp change in real time even in the night!
• [High Quality Material]---Made of thicker quartz, this heater is shatter-proof and blast-proof. The heater cover is compact designed, which is heat resistant that will protect you little fish from scalding. Strong suction cup bracket help stably fix the heater in every corner of the fish tank.

User questions & answers

Question:	How do I turn of the annoying beeping
Answer:	When the led display shows hh, it means the temperature of the water excess 36 degree, which is too hot to the aquarium, it is best to power off the heater and wait for 15mins. Then plug the heater and reset the heating temp.
Question:	What does E1 error code mean with this unit? It's not listed in the manual
Answer:	I am not 100%sure. I found one site that said it is due to not being completely submerged. Check that and see if that might be the issue. If that is not it, I do not know what the code would be.
Question:	How do you turn the heater temperature down? I need to change the temp and it only goes up
Answer:	Keep going up until it cycles through and begins over. Then stop at the temp you wznt
Question:	Mine is reading hh but the water isn’t that hot, will it reset and work again or is it broken and do i need to get a new heater? it’s only 1 month old
Answer:	When the led display shows hh, it means the temperature of the water excess 36 degree, which is too hot to the aquarium, it is best to power off the heater and wait for 15mins. Then plug the heater again to reset the heating temp.