Top 10 Best trough heater in 2026

Last Updated - 6/8/2026

🏆Best Choice

K&H Pet Products

K&H Pet Products Pond Heater for Outdoor Ponds with Fish, Deluxe Thermo-Pond Perfect Climate Deicer, Winter Oxygen Exchange for Live Fish, Thermostatically Controlled, Safety Listed - 7in 750W

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•ENERGY SAVING: 3 different wattages of pond deicers for outdoor ponds of virtually any size, see our zone chart to choose the right wattage deicer for your pond in your zone
•THERMOSTATICALLY CONTROLLED: Deicer is thermostatically controlled to turn on and off as needed to keep your pond from freezing over
•FLOATING & SUBMERSIBLE: Can be used as a floating pond deicer out of the box or in seconds converts to a submersible pond deicer
•SAFETY CERTIFIED: This pond heater has been tested & certified by MET Labs to exceed USA/CA electrical safety standards; IMPORTANT! Heating element must be submerged in water at all times when in use
•BRAND YOU TRUST: Designed by K&H with OVER 20 years of experience in creating safe, innovative, quality products for pets; Two-year limited warranty
•SIZE: This model uses 750 watts of power, please refer to our zone chart to see if this is the right choice for your pond in your area
•IMPORTANT: Keep the heating element free from mineral build up, allowing mineral build up can cause the heater to stop working or trip your GFCI; designed for 110/120 volt electrical current only

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$42.99

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Farm Innovators, Inc.

Farm Innovators 1250 Watts 7.5 Inch Cast Aluminum Floating Outdoor Pond De Icer Heater with Built in Thermostat Control and 10 Foot Cord, Green

9.6

ChoiceComparer.com Score

9.6

/ 10

Outstanding

Main highlights

•Designed to float on the top of ponds to keep a hole in the ice, creating a protective haven for your aquatic inhabitants throughout the winter chill
•Constructed of patented cast aluminum for ultimate efficiency and safety, this pond heater is designed to withstand harsh weather conditions while its compact design allows for easy installation
•Thermostatically controlled to operate only when necessary to prevent icing, this feature combines smart technology with eco-friendly heating, making it an efficient choice for cold climates
•Comes with a heavy-duty anti-chew cord protector that makes sure wildlife will not mistake the de-icer for a toy and offers you extended peace of mind throughout the winter season
•Features a caged barrier that makes the de-icer safe for operation in all ponds, making it fish and plant-friendly, and a fully grounded 10-foot power supply cord for added safety and convenience

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$48.97

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Hagen

Laguna PowerHeat 315-Watt Floating Pond Heater for Outdoor Ponds with Fish – Thermostat-Controlled De-Icer with LED Indicator, Safe for Plastic & Liner Ponds, 22 ft Cord

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•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

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$64.00

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SoulBay

SoulBay 1000W Pond Heater for Outdoor Ponds Winter Bird Bath, Thermostatically Controlled Pond Floating De-Icer

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•HEATING POWER: Features a robust 1000-watt heating element designed specifically for outdoor pond and bird bath deicing applications
•TEMPERATURE CONTROL: Thermostatically controlled operation automatically maintains water temperature above freezing point
•VERSATILE USE: Perfect for both outdoor ponds and bird baths during winter months to prevent ice formation and maintain water accessibility
•SAFETY FEATURES: The pond de-icer has built-in thermal protection to maintain optimal water temperature and automatically shuts off if it overheats to ensure the safety of pond inhabitants
•WINTER PROTECTION: Helps protect pond life and allows birds continuous access to water by preventing complete freezing during cold weather

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$39.99

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Aquascape

Aquascape 39000 Pond Heater and De-icer for Pond Water Feature Gardens, 300 Watt , Silver

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•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

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$109.99

$129.99

-15%

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Pennington Aquagarden

Pennington Aquagarden, Ice Vent Pond Heater, Pond De-icer, Winter Protection for Fish & Aquatic Life, Thermostat Controlled, for Ponds up to 1200 gallons

8.7

ChoiceComparer.com Score

8.7

/ 10

Great

Main highlights

•CREATES ICE FREE ZONES – Creates an ice free zone on the surface of your pond allowing for toxic gases to escape and oxygen to get in helping your pond stay healthy.
•WINTER PROTECTION – Helps with keeping your fish and aquatic life protected during the coldest months of the year.
•SAFE FOR ALL PONDS – This ice vent pond heater is safe for all types of ponds, including plastic pond and liners.
•EFFECTIVE PROTECTION DOWN TO MINUS 20°F – The ice vent pond heater utilizes a unique heat convection design.
•FOR PONDS UP 1200 GALLONS: The ice vent pond heater is suitable for ponds up to 1200 gallons, max dimensions 12ft x 7ft x 2ft.

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$49.27

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Aobiono

Aobiono Pond Heater De Icer, Winter Thermo Climate Floating Survival Solution for Outdoor Fish Pond Koi, Thermostat Control for Water Stock Tank Livestock Bird Bath Pet, 12 ft Cord (1000W)

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Effective Pond Heater: This pond heater is designed to prevent outdoor ponds from freezing over during harsh winter conditions.
•Durable Construction: Featuring a rugged, heavy-duty design with a sturdy outer casing made of high-quality plastic.
•Easy Installation: Simply place the heater in the desired location of your pond, and plug it into a standard electrical outlet.
•Efficient Heating: With a powerful 500W or 1000W or 1500W heating element, it efficiently transfers heat to the surrounding water, keeping a section ice-free.
•Safe Operation: Equipped with safety features like automatic shut-off and overheating protection for worry-free use.

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$45.99

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