The FH135 is a 120-volt pool heat pump rated at 35,000 BTU, sized for above-ground pools up to 18 feet round or 12 by 24 feet oval and in-ground pools up to 7,500 gallons. It runs on a standard 3-prong outlet with an included GFCI cord, so it needs no gas line or propane tank. Its rated efficiency is 5.55 times the heat per unit of electricity, and it tops out around 82°F water at 82% humidity. It suits owners of small pools who want electric heat without a big electrical upgrade; larger pools and cold-climate use are beyond its range, and heat pumps in this class generally need a cover and mild air to hold temperature.
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Rated 4.7 out of 5 across 54 ratings, the FH135 draws mostly positive marks from owners of small pools. Buyers describe it as an easy plug-in replacement for gas heat that keeps their water comfortable. The main reservations are about capacity and how much the weather affects output.
The FH135 is a 120-volt swimming pool heat pump with a 35,000 BTU output. It is made for small pools: above-ground pools up to 18' round or 12' x 24' oval, and in-ground pools up to 7,500 gallons.
It produces 5.55 times the heat for every dollar of electricity. It runs on electricity, so no gas or propane heater installation is needed. It plugs into a standard 3-prong, 120V outlet using the included cord and GFCI plug. It operates best at 82% humidity and can heat water up to 82 degrees Fahrenheit.
The body is weatherproof ABS and has a compact design. A digital controller is used to adjust the temperature and monitor the system. Included fittings are meant to connect it to an existing pool system.
