The Swimming Pool Heat Pumps That Work Best for Above Ground Pools

Our Verdict and How We Chose

A successful pool heating setup ensures your water reaches a consistent temperature quickly enough to make the backyard usable during cooler months. This requires a high COP (Coefficient of Performance), which measures how much heat the unit produces relative to the electricity it consumes.

The POOLCOMFT Above Ground Pool Heater PLC70 achieves high efficiency with a 4.7 COP. The VARMINPOOL 18450 BTU 110V Pool Heat Pump is a strong alternative for those prioritizing a titanium heat exchanger with smart app controls, while the Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump offers a 4.3 COP and versatile heating and cooling.

We selected these models after screening 29 Swimming Pool Heat Pumps and comparing 10 in this page’s table here at Refrigerant Recovery Pro. The selected options range from $624.99 to $699, while the median price for the 10 models in our comparison is $674.

Use the audience checklist to find the perfect match for your specific backyard goals.

See our top picks for a quick glance at the best-performing heat pumps.

Review the setup and warranty notes for information on installation and long-term support.

For a deeper dive into the technical specs, see our full WOPOLTOP RCDF-035 review to see if it fits your needs.

Swimming Pool Heat Pumps for Above Ground Pools Compared Side by Side

Prices are approximate and move frequently – check the current price before deciding. “Not stated” means the manufacturer listing does not give that figure – we do not estimate it.

Among our top picks, the Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump is the value leader because it provides 16,000 BTU for a lower price point.

Each Pick for Above Ground Pools, Reviewed in Detail

The 3 picks below are reviewed in the same order as the cards above.

POOLCOMFT Above Ground Pool Heater PLC70

The POOLCOMFT Above Ground Pool Heater PLC70 was selected because it provides a high heating capacity for small above ground pools while operating on a standard 120V/60Hz power supply.

What we like: This unit features a titanium heat exchanger, which is the material used to resist corrosion and chemical degradation over time. It offers a 4.7 COP, which is the efficiency ratio of heat produced relative to electricity consumed. The smart control IC chip helps maintain a constant pool temperature throughout the day.

Keep in mind: With a heating capacity of 22,462 BTU/hour, this model is not sufficient to heat a 5,000 gallon above ground pool, as that volume typically requires 40,000 to 60,000 BTU.

VARMINPOOL 18450 BTU 110V Pool Heat Pump

The VARMINPOOL 18450 BTU 110V Pool Heat Pump is a versatile option for above ground pool owners who need a plug and play setup with smart app connectivity.

What we like: This model includes WiFi connectivity and smart app control for remote temperature monitoring. It uses a pure titanium heat exchanger to protect the internal components from damage. The 110V power supply allows for installation without an electrician.

Keep in mind: The 16,000 BTU heating capacity is not enough to heat a 5,000 gallon above ground pool, which requires a higher output to reach desired temperatures.

Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump

The Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump was chosen for its dual heating and cooling capabilities and its compact 16.5 x 14.2 x 17.8 inch footprint.

What we like: This unit features a titanium heat exchanger and a 4.3 COP. It provides both heating and cooling, allowing for temperature control in different seasons. The WiFi-connected mobile app provides remote access to the system’s settings.

Keep in mind: Like the other 110V models, the 16,000 BTU heating capacity is insufficient for a 5,000 gallon above ground pool and is best suited for even smaller volumes.

You can also view the MICOE MSHP-005Y1 spec breakdown to see how it handles smaller heating requirements.

The Specs That Decide a Pool Heat Pump for Above Ground Pools

BTU Capacity for Pool Volume

You need a heating capacity that provides enough BTU output—the rate of heat energy transferred into the water per hour—to raise your pool’s temperature within a reasonable timeframe. For a 5,000 gallon above-ground pool, you require a unit capable of 40,000 to 60,000 BTU; however, the Varpoolfaye KSPF-005L3R1A1 and the VARMINPOOL 18450 BTU 110V Pool Heat Pump both state a 16,000 BTU capacity, which is not enough to heat a pool of that size alone. To avoid the failure mode of under-sizing for pool volume, where the heater runs 24/7 but fails to raise the temperature during cold nights, you must verify your specific pool’s requirements before ordering.

Compatibility with Above Ground Plumbing

Ensure your setup supports the specific connections required by the pump, as these units typically rely on standard pool hose connections rather than complex underground infrastructure. The VARMINPOOL 18450 BTU 110V Pool Heat Pump states it is compatible with inflatable and steel frame pools, while the Varpoolfaye KSPF-005L3R1A1 is specified for above-ground use. Because these units are designed for above-ground pools, they lack the heavy-duty infrastructure of Commercial-Grade Industrial Heat Pumps, which serve as the benchmark for durability and BTU output that residential units cannot match. You should confirm your hose diameters and flow rate—the measure of how much water the pump can move to be heated—to ensure the water turnover allows for efficient heat transfer.

Noise Level for Backyard Proximity

Select a unit with a decibel rating that suits your backyard’s proximity to living spaces, as these devices generate constant mechanical noise during operation. The Varpoolfaye KSPF-005L3R1A1 states a noise level of 50 dB, which is near the median for this category. While the POOLCOMFT Above Ground Pool Heater PLC70 and the VARMINPOOL 18450 BTU 110V Pool Heat Pump do not state a specific decibel figure, you can compare their physical footprints to determine how much space they occupy near your seating area. Unlike high-end brands like Hayward or Jandy, which are the industry standard for parts availability and serviceability, these models focus on compact footprints for backyard use.

Power Requirements for Outdoor Outlets

Verify that your outdoor power source provides the correct operating voltage, as these units run on standard household electricity rather than high-voltage industrial circuits. The POOLCOMFT Above Ground Pool Heater PLC70 operates on 120V/60Hz, while the VARMINPOOL 18450 BTU 110V Pool Heat Pump and the Varpoolfaye KSPF-005L3R1A1 both state a 110V power source. Because these units use 110V or 120V, they can typically run on a standard household outlet without the dedicated high-voltage circuit required by larger systems. You must confirm your outlet’s amperage and wire thickness before installation to ensure the circuit can handle the 5KW power output stated by the VARMINPOOL unit.

How COP efficiency affects daily pool heat pump operating hours

Plan your heating schedule based on the COP (Coefficient of Performance), which measures the efficiency of heat produced relative to electricity consumed. A higher COP means the unit produces more heat for every unit of electricity, allowing you to reach your target temperature with fewer hours of operation. You begin by setting your desired temperature in the smart app, the unit activates based on the water temperature, and it runs until the target is met. Since these are 110V units, they are designed for consistent, smaller-scale heating rather than the rapid heating of larger systems.

What Each Job Calls For vs What These Picks State

Match the job you actually need done to the figure it calls for, then check which picks state that figure or more. Where none do, the row says so.

These figures are the levels this category is generally held to, not manufacturer claims. A pick at or above a figure states that number; how it reaches it and the rest of your setup still decide the job, so check them against your own workload before buying.

Who Buys Swimming Pool Heat Pumps, and What It Really Costs

What These Pool Heat Pumps Need, and What to Check on Arrival

Power source and electrical setup requirements for pool heat pumps

You need a 110V or 120V power source to run these pool heat pumps, as they are designed for standard household outlets rather than high-voltage circuits. While these models are 110V/120V compatible, you should confirm with a professional if your current circuit can handle the continuous draw of a heating unit.

• The POOLCOMFT Above Ground Pool Heater PLC70 requires a 120V/60Hz connection.
• The VARMINPOOL 18450 BTU 110V Pool Heat Pump operates on a 110V power supply.
• The Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump also uses a 110V power source.

Verifying heating capacity and warranty terms upon pool heat pump arrival

Warranty coverage varies by seller and country, so you should check the specific terms provided with your purchase. Confirm these details before the return window closes to ensure the unit meets your needs.

• Verify the heating capacity matches your needs; for example, the Varpoolfaye KSPF-005L3R1A1 states 16,000 BTU, which is not enough to heat a 5,000 gallon pool alone.
• Check the heat exchanger material to ensure it is titanium, as this prevents corrosion from pool chemicals.
• Inspect the unit for any shipping damage to the exterior casing or the 110V plug.
• Confirm the weight of the unit, such as the 83 pounds for the POOLCOMFT model, to ensure your delivery point can receive it.

The first thing to do when the unit arrives is to verify the water flow sensor and connections before plugging it into your power source.

Find quick answers to common queries in the FAQ.

View the comparison table to see how the top models stack up side by side.

Follow the buying guide to learn how to select the right unit for your needs.

Buying Questions About Swimming Pool Heat Pumps for Above Ground Pools, Answered

Which above ground pool heat pump is best for my setup?

The above ground pool heat pump that suits your setup depends on your specific pool volume and power availability. If you require a unit that runs on a standard household outlet, the POOLCOMFT Above Ground Pool Heater PLC70, VARMINPOOL 18450 BTU 110V Pool Heat Pump, and Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump all state 110V or 120V operating voltage. For smaller volumes, the Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump offers 16,000 BTU of heating capacity, while the POOLCOMFT Above Ground Pool Heater PLC70 provides 22,462 BTU/hour (the rate of heat energy transferred into the water per hour).

How much will my monthly electricity bill increase when running the heater?

Your monthly electricity bill increase depends on the COP (Coefficient of Performance), which measures the efficiency of heat produced relative to electricity consumed. The POOLCOMFT Above Ground Pool Heater PLC70 has a COP of 4.7, which is at or above the 4.0+ efficiency benchmark where a unit produces 4 units of heat for every 1 unit of electricity. The Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump operates at a COP of 4.3, while the VARMINPOOL 18450 BTU 110V Pool Heat Pump does not state a COP figure.

How much extra space do I need to leave for the unit’s airflow?

The extra space needed for the unit’s airflow is not stated for any of the evaluated models.

What is the difference between a “fast heat” and “maintenance” mode?

The difference between a “fast heat” and “maintenance” mode typically involves the compressor’s output level versus its energy efficiency. While these specific modes are not listed in the data, the POOLCOMFT Above Ground Pool Heater PLC70 uses a smart control IC chip to maintain constant pool temperature. The VARMINPOOL 18450 BTU 110V Pool Heat Pump and Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump both state they adjust operation based on water temperature and system conditions.

Which pool heat pump should I buy for a 5,000 gallon pool?

If you want to heat a 5,000 gallon pool, you must consider that the 16,000 BTU capacity of the VARMINPOOL 18450 BTU 110V Pool Heat Pump and the Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump is not enough for that volume. A 5,000 gallon pool requires at least 40,000 to 60,000 BTU to heat effectively. Since the data does not provide a model with that capacity, you should verify your specific heating requirements before ordering.

Is the Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump worth it?

The Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump is worth it for smaller above ground pools that require WiFi connectivity and dual heating and cooling. This model costs around $624.99 and features a titanium heat exchanger.

Explore the detailed reviews for an in-depth breakdown of every product listed.

Who Should Skip These Pool Heat Pumps

If you are planning to heat an above ground pool during a cold night, you need to consider the heating capacity of the unit. The POOLCOMFT Above Ground Pool Heater PLC70 provides a maximum output of 22,462 BTU/hour. Because heating a 5,000 gallon above ground pool requires at least 40,000 to 60,000 BTU, this unit will not reach the required output to raise the temperature in that specific timeframe.

The VARMINPOOL 18450 BTU 110V Pool Heat Pump offers 16,000 BTU of heating capacity. This capacity limits the speed at which the unit can warm a large volume of water, as it falls short of the 40,000 to 60,000 BTU needed for a 5,000 gallon pool. To avoid a situation where the heater runs 24/7 but fails to raise the temperature during low solar gain, you should verify your specific pool volume and the required BTU per gallon before ordering.

The Varpoolfaye KSPF-005L3R1A1 5,500 Gallon Heat Pump also provides 16,000 BTU of heating capacity. Similar to the VARMINPOOL model, this output is not enough to meet the 40,000 to 60,000 BTU requirement for a 5,000 gallon pool. You should also ensure your plumbing allows for sufficient water turnover; an improper flow rate or small pipe diameter creates a pressure drop that prevents effective heat transfer.