3 best cheap aquarium heater

Name: FREESEA 25/50/100/200/300 Watt Aquarium Heater with Aquarium Submersible Thermometer
Brand: FREESEA
Price: 113 USD
Availability: InStock
Rating: 4.3 (250 reviews)

A cheap aquarium heater is an essential piece of equipment for maintaining a stable and comfortable water temperature for your fish and aquatic pets. These heaters are commonly found in the category of Aquarium Heaters, Chillers, Fish Aquatic Pets, and Pet Supplies. Here are some key points to consider when looking for an affordable aquarium heater:

Wattage and Tank Size: Determine the appropriate heater wattage based on the size of your aquarium. As a general guideline, you'll need about 5 watts of heating power per gallon of water. So, for a 40-gallon tank, you'd ideally want an 200-watt heater. Choose a heater that matches your tank's needs to ensure efficient temperature regulation.
Type of Heater: There are different types of aquarium heaters, including submersible and hang-on heaters. Submersible heaters are entirely underwater and are often more efficient at heating the water evenly. Hang-on heaters are attached to the back of the aquarium and can be suitable for smaller tanks.
Thermostat and Temperature Control: Look for a heater with an adjustable thermostat that allows you to set and maintain your desired water temperature. Ensure that the heater has reliable temperature control to prevent overheating or underheating the water.
Safety Features: Safety is crucial when using aquarium heaters. Choose a heater with features like automatic shut-off in case of overheating, a shatterproof casing, and a built-in thermometer to monitor the water temperature.
Heating Element: Quality of the heating element matters. High-quality materials can ensure the heater's longevity and durability. Stainless steel or titanium heating elements are known for their durability.
Size and Placement: Consider the physical size of the heater and how it will fit inside your tank. Make sure it doesn't obstruct the movement of your aquatic pets. Proper placement is essential for even heat distribution.
Budget-Friendly Options: Research various brands and models to find affordable options that meet your needs. Keep an eye out for promotions, discounts, or bundles that may offer better value for your money.
Brand Reputation: Opt for heaters from reputable brands known for producing reliable and safe aquarium equipment. Reading product reviews and checking customer feedback can help you assess a heater's performance and longevity.
Warranty: Check if the heater comes with a warranty. A warranty can provide peace of mind and assurance of the product's quality.
Power Consumption: Consider the energy efficiency of the heater, as this can impact your electricity bills over time. Some heaters are designed to be more energy-efficient than others.

Regularly monitor your aquarium's temperature with a separate thermometer to ensure that the heater is maintaining the desired level. A reliable and affordable aquarium heater is crucial for the well-being of your fish and aquatic pets, as maintaining a stable water temperature is essential for their health.

Below you can find our editor's choice of the best cheap aquarium heater on the market

Orlushy Submersible Aquarium Heater,100W/150W/200W/300W Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups and Free Thermometer Suitable for Marine Saltwater and Freshwater

Nova pet supplies co.LTD

Based on 3 reviews Check latest price

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.

FREESEA 25/50/100/200/300 Watt Aquarium Heater with Aquarium Submersible Thermometer

FREESEA

Based on 3 reviews Check latest price

★【50 Watt Heater】: This Aquarium heater is suitable for 5 to 15 gallons aquariums, Length - 6.8 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.
★【Temperature range】: 63°F~95°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.
★【Intelligent temperature control】：Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating. Furthermore, Automatic safety shut-off feature, and overheating protection.
★【Note】: 1. Aquarium heater is 100% submersible use only, during its heating time, heater must be 100% submerged into the water.,Please unplug the power supply when cleaning the fish tank or aquarium water changes. 2. Heater rod is suitable for people over 16 years of age. Children or minors should be under adult guidance or supervision.
★【SATISFACTION GUARANTEED】: Gain the confidence to go hard with us! Our Aquarium Heater is built with durability in mind and safety for every design, In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.

User questions & answers

Question:	Can I use a short extension cord with this 25 watt heater because the port is so short
Answer:	About 2 in wide and 12 in long
Question:	Does this heater come with suction cups
Answer:	Not sure. Would have to make sure it does not rest on plastic liner. Heats water to very high temps. I have to keep unplugging it while heating hot tub. Goes well over 110 degrees. Too hot for fish.
Question:	Are their any directions to put the heater in
Answer:	I use mine to heat my 300 gallon stock tank pool. I use a filter with chlorine bleach. The heater works beautifully. When I take it out before we get in the pool, I wipe it down with a small towel. White residue will form but it comes off easily. I used it daily last summer August through September. Just set up the pool again yesterday and it’s working fine.
Question:	Has anyone else experienced condensation in the display? it makes it very hard to read. does anyone know how i can stop this from happening
Answer:	Mine doesn't. I have touched the water while the heater still connects and nothing happened.

Product features

FREESEA Aquarium Submersible Heater

1.Temperature range: 63°F~95°F , It is very easy to adjust the temperature you need.

2.Automatic constant temperature function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating.

100% is submersible heater, and it should be installed on the inner side of fish tank.

100% is submersible heater, and it should be installed on the bottom of fish tank.

The water level of fish tank cannot very low, as it is easy for heater to exposed on water.

It is forbid for exposing some main body part of heater on water when using.

hygger 500W Aquarium Heater for Fresh-Water Salt-Water, with External Digital Display Thermostat Controller and Thermometer, Auto Quartz Submersible Heater for Fish Tank 60-120 Gallon

hygger

Based on 5 reviews Check latest price

【Quickly Heat Up】Voltage 110-120V/60HZ, power 500W, US three-pin plug, heater rod length 10.5 inch. Fast heating up aquarium heater, it takes about 3 minutes to heat 3.5 gallon water up 3℉
【Auto on and off 】Reliable submersible aquarium heater. It will stop heating when the water temp reaches to the set temp, please note that the water temp may go up 1℉ more because of the waste heat. When the water temp is cool down to 1℉ less than the set temp, the tank heater will restart heating
【Fully Submerged】The heater tube and the separate sensitive thermometer must be completely submerged under water all the time. Please unplug it and wait it to cool down before you removing the heater or doing water change
【Led Display Controller】Only show Fahrenheit degrees. To set the temp, just press the button over and over until the screen displaying the temp you desired, then stop and wait the digit flashing for 3 times, the setting is done and the led shows the current water temp again
【For long Time Use】Very durable and explosion-proof aquarium heater, can be used for saltwater and freshwater aquariums, service life can be 3 years or more. With low profile black plastic guard, easy to hide in the tank

Product features

How to use the temp setting?

Temp Setting:

Press the button on the controller over and over, the set temp digits will go circularly from 61 to 90, when you set it to the digit you want, stop and wait the led flashing for 3 times, then the setting is done and the led will go on displaying the water temp.

Heating indicator light

There are 2 indicator lights below the display screen, the left light will on red when the heater is heating, the right light will on green when it stops heating.

Over temperature protection

The fish tank heater will auto shut off if water temp is over 97℉, and will automatically turn normal work when water temp is less than 95℉.

Aquarium heater use direction

Please don't plug in before the heater is well installed.
Please wait for about 6 seconds before you setting the temp.
Keep the heater and thermometer fully submerged all the time.
Place the heater vertically or horizontally near the water intake or on the way of water flow.
Don’t bury the heater under gravels, mud or sands.
Keep tank water circulation as far as possible.
Place the thermometer far away from the heater, keep the temp controller away from water.
Wait the heater tube to cool down before moving it or changing the water.