Under 75,000 BTU suits an above-ground pool, a plunge pool or a small in-ground pool up to about 15,000 gallons, especially with a solar cover to hold the heat in overnight. Most of these run on 230 V; the smallest few plug into a 120 V outlet. A heat pump that’s too small for the pool still heats it, just slowly, and in cool weather it may never catch up.
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Full ranking 14
- VEVOR VDPYCA-110 38,220 BTU#1 of 14Full review
A cheap single-speed heat pump for above-ground pools up to about 13,000 gallons, for buyers who want the lowest price per BTU.
Amazon $973.07$973.0738k BTU6.64.1Single - TURBRO Beluga B50V 52,200 BTU#2 of 14Full review
A low-cost inverter heat pump for above-ground or small in-ground pools up to about 16,000 gallons, for buyers who want app control and a longer season.
Amazon $1,749$1,74952k BTU6.54.4Variable - TURBRO Beluga B75V 72,400 BTU#3 of 14Full review
An inexpensive inverter heat pump for in-ground pools up to about 21,000 gallons, for buyers who value low running costs and quiet operation over a long warranty.
Amazon $1,899$1,89972k BTU6.93.8Variable - VEVOR VBPYCA-210 70,730 BTU#4 of 14Full review
A cheap inverter heat pump for above-ground or in-ground pools up to about 20,000 gallons, for buyers who put price first and can live with a one-year warranty.
Amazon $1,899.90$1,899.9071k BTU6.94.8Variable - VEVOR VDPYCA-150 52,100 BTU#5 of 14Full review
A cheap single-speed heat pump for above-ground or small in-ground pools up to about 16,000 gallons, for buyers who want the lowest price per BTU.
Amazon $1,202.27$1,202.2752k BTU6.24Single - TURBRO Beluga B58V 58,004 BTU#6 of 14Full review
A low-cost inverter heat pump for above-ground or small in-ground pools up to about 18,000 gallons, for buyers who want app control and a longer season.
Amazon $1,799$1,79958k BTU--Variable - VEVOR VDPYCA-65 23,130 BTU#7 of 14Full review
A 115 V heat pump for small above-ground pools up to about 6,600 gallons, for owners who want more output than a plug-in 18,000 BTU unit.
Amazon $879.90$879.9023k BTU63.9Single - TURBRO Beluga B33V 32,412 BTU#8 of 14Full review
A small plug-in inverter heat pump for above-ground pools up to about 10,000 gallons, for owners without a 240 V circuit at the pool.
Amazon $1,199$1,19932k BTU--Variable - Raypak Crosswind 70K#9 of 14Full review
A mid-size Raypak inverter for small to average in-ground pools, for owners who want heat and chill on a modest circuit.
RaypakNo price66k BTU5.84Variable - Raypak Crosswind 50K#10 of 14Full review
Raypak’s smallest inverter heat pump, for above-ground or small in-ground pools where low noise and heat-and-chill matter.
RaypakNo price48k BTU5.44Variable - TURBRO Manatee M18 18,000 BTU#11 of 14Full review
A plug-in heater for small above-ground pools up to about 6,000 gallons, for owners who swim in the warm months and don’t want to wire a 240 V circuit.
Amazon $549.99$549.9918k BTU5.52.9Single - Hayward HeatPro 50,000 BTU#12 of 14Full review
A compact heat-and-cool unit for an above-ground or small pool from a big-name maker, best bought through a dealer to get the longer warranty.
Amazon $2,999$2,99947k BTU64Single - Hayward HeatPro 70,000 BTU#13 of 14Full review
A side-discharge heat-and-cool unit for above-ground or small in-ground pools, best for owners who already run a Hayward Omni system.
HaywardNo price70k BTU5.34Single - AquaCal TropiCal T70 Inverter#14 of 14Full review
A compact inverter heat pump for smaller in-ground or above-ground pools up to about 20,000 gallons, for owners who want heat and cool from a 20 A circuit.
Inyo Pools $3,311 HVACDirect $3,311$3,31163k BTU5.34Variable
