Pool Heaters & Heat Pumps
Best Electric Swimming Pool Heaters (2026): Our 4 Picks Ranked
As an Amazon Associate I earn from qualifying purchases. Specs below come from each product's Amazon listing; we do not test products in person.
For electric pool heating, the MICOE 58,000 BTU Pool Heat Pump leads this list, with heating and cooling modes, app control and a titanium heat exchanger for pools up to 16,500 gallons. The VEVOR Pool Heat Pump Max 93390 BTU offers 93,390 BTU, for pools up to 22455 gallons.
Starting out? See the main guide: Best Pool Heater
Top picks at a glance
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Best OverallMICOE 58,000 BTU Pool Heat Pump9.8 View on Amazon -
9.4 View on Amazon -
Most Heat OutputVEVOR Pool Heat Pump Max 93390 BTU9.4 View on Amazon -
Also GreatGRAT 75,000 BTU Full Inverter Pool Heat9.2 View on Amazon
Compare the specs
Ranked on heat output, phone app control from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Heat output | Phone app control | Weight | Warranty |
|---|---|---|---|---|
| 1. MICOE 58,000 BTU Pool Heat Pump | 58,000 BTU | Yes | — | — |
| 2. POOLTOHOT Pool Heater for Inground Pools | 90,000 BTU | Yes | 179 lb | 3-year |
| 3. VEVOR Pool Heat Pump Max 93390 BTU | 93,390 BTU | Yes | 195.11 lb | — |
| 4. GRAT 75,000 BTU Full Inverter Pool Heat | 75,000 BTU | Yes | — | — |
MICOE 58,000 BTU Pool Heat Pump
It pairs 58,000 BTU with heating and cooling modes, app control, a titanium heat exchanger and operation at approximately 52 dB.
- Heat output: 58,000 BTU
- Phone app control
Good for
- Owners of pools up to 16,500 gallons who want heating and cooling
- Buyers who want app control with a digital control panel
Skip it if
- You need heating for a pool over 16,500 gallons
- You need more than 58,000 BTU of heat output
Heating runs from 46°F to 104°F, and cooling runs from 45°F to 82°F. The unit works in outdoor temperatures from 32°F to 109°F, with auto-defrost for colder weather. It has a digital control panel and app control, and an ABS cabinet built for outdoor use.
POOLTOHOT Pool Heater for Inground Pools
It pairs 90,000 BTU with heating and cooling modes, WiFi app control, a titanium heat exchanger and a 3-year warranty.
- Heat output: 90,000 BTU
- Phone app control
- 3-year warranty stated
Good for
- Owners of pools up to 28,000 gallons who want heating and cooling
- Buyers who want WiFi app control and a touch panel
Skip it if
- You need heating for a pool over 28,000 gallons
- You need more than 90,000 BTU of heat output
Heating runs from 47°F to 109°F, and cooling runs from 47°F to 83°F. It has WiFi app control, a touch panel, auto-defrost and a titanium heat exchanger with R32 refrigerant. It weighs 179 lb and carries a 3-year warranty.
VEVOR Pool Heat Pump Max 93390 BTU
It has 93,390 BTU with heating and cooling, WiFi app control and a spiral titanium heat exchanger.
- Heat output: 93,390 BTU, the most here
- Phone app control
Good for
- Owners of pools up to 22455 gallons who want heating and cooling
- Buyers who want WiFi and app remote control with timers
Skip it if
- You need heating for a pool over 22455 gallons
- You need more than 93,390 BTU of heat output
It generates up to 16.89–93.39 kBTU with a COP of 14.56–6.77, and works from 5°F to 109°F. It has WiFi and app remote control for heating, cooling, silent mode, water temperature and timers. It has 1-1/2 in inlet and outlet ports, a low-noise brushless fan at 50 dB and automatic defrost.
GRAT 75,000 BTU Full Inverter Pool Heat
It pairs 75,000 BTU with heating and cooling modes, WiFi and Bluetooth app control and a titanium heat exchanger.
- Heat output: 75,000 BTU
- Phone app control
Good for
- Owners of pools up to 21,000 gallons who want heating and cooling
- Buyers who want WiFi and Bluetooth app control
Skip it if
- You need heating for a pool over 21,000 gallons
- You need more than 75,000 BTU of heat output
Heating runs from 46°F to 104°F, and cooling runs from 45°F to 82°F. It has WiFi and Bluetooth app control, a digital control panel and automatic defrost. It has a titanium heat exchanger and a UV-resistant ABS housing for outdoor use.
How to choose
Match heat output to pool size
Heat output, measured in BTU, sets how much heat a unit can add to pool water. A larger pool needs a larger BTU figure to reach the same water temperature in a comparable time. Compare the BTU figure with the pool size each unit covers: 58,000 BTU for pools up to 16,500 gallons, 75,000 BTU for pools up to 21,000 gallons, 90,000 BTU for pools up to 28,000 gallons and 93,390 BTU for pools up to 22455 gallons. Pick a unit whose pool size covers your pool, rather than a unit sized for a much smaller pool.
Heating and cooling modes
Heating mode warms pool water toward a set temperature, while cooling mode lowers it when the water gets too warm for swimming. All four units here have heating and cooling modes with app control. Check the heating and cooling ranges before you buy: the MICOE and GRAT units run heating from 46°F to 104°F and cooling from 45°F to 82°F, while the POOLTOHOT unit runs heating from 47°F to 109°F and cooling from 47°F to 83°F.
Covers, defrost and outdoor placement
A pool cover reduces heat loss, especially in cooler weather, and helps hold the water temperature. Auto-defrost helps a heat pump keep working in colder weather by clearing frost from the unit. All four units here have auto-defrost or automatic defrost. Place the unit outdoors with clear air around it, since these units transfer heat from the surrounding air, and keep the housing clear of debris.
FAQ
What size pool heater do I need for my pool?
Match the BTU figure and the pool size to your pool. The MICOE covers pools up to 16,500 gallons at 58,000 BTU, the GRAT covers pools up to 21,000 gallons at 75,000 BTU, the POOLTOHOT covers pools up to 28,000 gallons at 90,000 BTU, and the VEVOR covers pools up to 22455 gallons at 93,390 BTU.
Do these pool heaters also cool the water?
Yes. All four units have heating and cooling modes with app control. The MICOE and GRAT units run cooling from 45°F to 82°F, and the POOLTOHOT unit runs cooling from 47°F to 83°F.
How loud are these pool heat pumps?
The MICOE runs at approximately 52 dB, the POOLTOHOT and VEVOR units run at 50 dB, and the GRAT unit runs at approximately 50 dB. Noise figures come from each unit, so compare the stated decibel figure with the spot where the unit will sit.
Do these heaters work with saltwater pools?
The MICOE and GRAT units have titanium heat exchangers for freshwater and saltwater pools. The POOLTOHOT unit has a titanium heat exchanger that resists saltwater damage. The VEVOR unit has a salt- and chlorine-resistant spiral titanium heat exchanger.
