10 Best Electric Pool Heater of December 2025
List of Top Rated Electric Pool Heater from thousands of customer reviews & feedback.
Updated On Dec 2025
1,729 Reviews Studied
1
EcoSmart SMART POOL 18 Electric Tankless Pool Heater, 18kW, 240 Volt, 75 Amps with Self Modulating Technology Read Review
- Flow Activation
- Ecosmart Pool Heaters are compact and easy to install for a new or existing pool
- Set your temperature digitally to increments of 1-Degree. Set it and forget it.
- Compatible with Ecosmart Remote Control
- Can be used as an alternative to or booster to heat pump. Phase - Single
2
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt Read Review
- Can provide hot water for one sink at 0.5 GPM in warmer climates
- Requires 1 x 30 amp breaker and 10 AWG wire
- For one sink at 0.5 GPM in colder climates the POU 6 is recommended
- Amperage Draw 29 amp. kW - 3.5 kW
- Connection Fittings 1/2" NPT
3
Smartpool S601P SunHeater Solar Heating System for In Ground Pool Read Review
- Keep your pool warm with a polypropylene heat collector. Direct Flow System - One Header Hole for Each Heating Tube
- Solar heater features 80 square feet of solar panels
- Pool accessory is perfect for heating any in-ground swimming pool
- Panel array measures 4 feet wide x 20 feet long. Raises Pool Water Temperature 6-10°F (4-6°C)
- Installation kit required (Sold Separately)
4
Hayward W3HP21004T HeatPro In Ground 90,000 BTU Heat Pump Read Review
- Acoustic compressor cover and profiled fan blade ensures quiet operation and efficient performance
- Ultra-Gold corrosion resistant evaporator fin for extreme durability especially in coastal environments
- Titanium heat exchanger designed for maximum heat transfer, efficiency and reliability
- Durable injection molded UV-resistant body panels that are impervious to rust and deterioration
- 2in x 2 1/2in CPVC Union Plumbing Connections - Common union for installation or service, adapts to larger plumbing recommended for greater efficiencies
5
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floo... Read Review
- CONVENIENT HOT WATER HEATER: 7 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 17.5 W x 17.5 H x 14.5 D Inches
- INSTALLED VERTICALLY OR HORIZONTALLY: This larger model can be mounted vertically (7 gal. of water supply) or horizontally (5.1 gal. of water supply)- vertical orientation is installed with the cold and hot lines on top of the unit
- RELIABLE WATER SOURCE: Easily hard-wire the 7-gallon model to provide the on-demand reliable water source your home or office needs
- IMPORTANT INFORMATION: Heating capacity of 1440 watts and a temperature range of 65-145°F max. Operating pressure-150 psi. Water fittings-3/4 inch Male NPT. Electrical requirements (Amp 12A/Volts 120)
- EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included for vertical orientation only); simply tap into the cold water line and install the water heater directly at the sink to provide hot water
6
American Standard 9075.120 Safe-T-Heater Read Review
- Whirlpool accessory
- Maintain constant water temperature
- Allows for longer, more relaxing soak
- All American Standard whirlpools are pre-plumbed at the factory making them ready to accept the heater
- Quick and easy two-step installation
7
Immersion Heater, Kingwork UL-Listed Portable Water Heater with Thermostat and Auto Shutoff Function, Submersible Bucket... Read Review
- Quick Heating Speed: 1000w 120v electric bucket heater for water only, high power ensures a quick heating speed, heats 5 gallons of water in minutes, use for cold weather and travel. Perfect for winter time jobs.
- Thermostat and Auto Shut off: The stainless steel tube contains a thermal overload safety switch, when the heating element reaches about 190 degrees F, bucket heater with thermostat can automatically cycle on and off to maintain water temperature to save power. dry burning will auto shut off power to avoid catching fire.
- 304 Stainless-steel Guard: The high quality 304 stainless-steel guard on the portable immersion heater protects the heating element from directly contacting persons or animals. the holes on the guard will release heat into the water faster.
- Simple Operation: Immerse in water at proper level. Plug into any grounded wall outlet. Check power indicator light in plug to make sure travel immersion water heater is on. It will heat water continuously over 180 degrees F and towards boiling. make sure the container designed to contain boiling water.
- UL-Listed against to the US safety standards, 12-month warranty. Package included: 1 pack bucket heater + Manual.
8
CalPalmy Immersion Heater | Submersible Water Heating with Stainless-Steel Guard and Thermostat | Heats 5 Gallons of Wat... Read Review
- Twice the Power: Heat water faster with our 1800-watt water heater and within minutes the water (About 5 gallons) will be noticeably warmer. (Warning: - When heated, it is prohibited to put a hand in the water to test the temperature, one needs to always unplug first before touching the water - It is required to fully immerse the heater in water to avoid any potential fire hazard).
- Rust Proof Stainless Steel Guard: The protective guard ensures no direct exposure to the heating element by people or pets. Heat dissipates to the water faster by flowing through the holes in the guard.
- Easy to Use: Fully submerge the UL 499 Standard certified heater in a bucket, tub or trough of water and plug into a grounded 120v plug. You can submerge the handle and cord. Feel the difference in a few minutes!
- Widely Application: The immersion water heater can be used in water, especially fit for heating water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc.
- For any Cold Weather Application: Heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in a tiny home or camper, window washing water and more! WARNING: Remove the heater before touching the water and please do not continuously use for over 4 hours!
9
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology Read Review
- Lifetime warranty
- Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
- Never run out of hot water with an ECOSMART tankless water heater
- Patented Self Modulating Technology and design
- ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98
10
New 220V 3KW Automatic Electric Swimming Pool Thermostat SPA Heater Water Heater Temperature Controller Widely Used in S... Read Review
- Input voltage:220V, Power: 3KW, Size: 180 * 125 * 125mm
- This thermostat is specifically designed for the hot tub, the thermostat is installed in the pipeline jacuzzi. When adding hot water bath, start the pump, the thermostat automatically heat insulation work, so the water temperature bath maintained at 39 degrees Celsius, give your Jacuzzi to create a more comfortable environment.
- Heating rate: The thermostat can be maintained within a temperature not exceeding 40 °C (104 °F) range. If cold water is started, will be 6 ~ 8 °C / h elevated temperatures.
- Automatic heating: Thermostat will first reach the preset temperature, then stop working until the temperature dropped a few degrees, the thermostat automatically turns on.
- Thermostat operation is fully automated, clockwise, the heating is on, indicator light, temperature reaches a preset temperature, will remain at that temperature.