Is the Aquastrong Pool Heat Pump Worth It for Your Pool?
By Maya Bennett, kitchen & home · updated 2026-07-26
Worth it if you want a few extra weeks of swim season without a big power bill.
Worth It, With Conditions
around $650price at time of review — check Amazon for current
- Worth it ifYour pool holds roughly 6,500 gallons or less
- Skip it ifYour pool is significantly larger than 6,500 gallons
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Picture stepping onto the pool ladder in early June before the water's caught up with the air, that first shock crawling up your shins. You climb back out, tell yourself July will fix it, and start wondering whether an aquastrong pool heat pump is really worth bolting onto the pad by the filter.
Here's the trick: a heat pump doesn't generate heat the way a gas heater burns fuel or a resistance coil glows hot. It pulls warmth out of the surrounding air, the same way a refrigerator moves heat the other direction, then compresses that warmth and pushes it into the water passing through the unit. That's what the 5.5 COP figure is really telling you: for every unit of electricity it uses, it moves about five and a half units of heat, which is why it costs less to run than gas or straight electric resistance. The 18,000 BTU output and plus or minus 2 degree thermostat are sized for pools around 6,500 gallons, so it's not straining to hold temperature, it's just topping off what the sun and air already give you. Dual-mode control lets the same unit pull double duty, warming water in spring and pulling heat back out on the hottest days of summer. Auto-defrost keeps ice from building on the coil in cooler weather, and at 38 to 48 decibels it runs quieter than the pool pump already sitting next to it.
So you're not really buying a heater, you're buying a transfer, moved heat instead of generated heat, and that's the whole reason the running cost stays low. The real question isn't whether it gets warm, it's whether your pool size and climate let that transfer work efficiently enough to be worth the space it takes on the pad.
Worth it if
- Your pool holds roughly 6,500 gallons or less
- You want to stretch swim season by a month or two, not run it through winter
- You'd rather pay for moved heat than generated heat on your power bill
Skip it if
- Your pool is significantly larger than 6,500 gallons
- You live somewhere winters stay well below freezing for months
- You need heating fast rather than gradual, steady warmup
Not for larger pools or true four-season heating in cold climates.
If you've got a pool in the 6,500-gallon range and want a few extra weeks on each end of the season, this is a sensible, quiet yes. If you're heating a much bigger pool or chasing swimmable water through a real winter, a higher-BTU unit will serve you better.
Check price on Amazon · around $650 or Add it to your Amazon cart to sit on it
Before you go
Is Aquastrong a good pool heat pump?
For pools around 6,500 gallons, its 18,000 BTU output and 5.5 COP rating put it in line with other mid-size residential heat pumps, and the plus or minus 2 degree thermostat keeps temperature steady rather than swinging.
What is the life expectancy of a pool heat pump?
Most residential heat pumps in this class run eight to twelve years with normal seasonal use and basic maintenance like clearing the evaporator coil.
Who makes Aquastrong pool heat pumps?
Aquastrong is the brand on the unit itself, backed here by a three-year warranty and lifetime technical support from the manufacturer.
Full spec sheet
| Brand | AQUASTRONG |
|---|---|
| Material | Cast Iron |
| Style | Above Ground |
| Power Source | Corded Electric |
| Number of Items | 1 |
| Specific Uses For Product | Swimming Pool Heating and Cooling, Above Ground Pools, Inground Pools |