The 55,000 BTU Inverter Horizontal Pool Heat Pump (PASRW040-P-BP122) delivers efficient, reliable heating for a wide range of above-ground and inground pool sizes. Designed with advanced inverter compressor technology, this unit automatically adjusts output to maintain steady water temperatures while using significantly less energy than traditional fixed-speed heat pumps.

With its 55K BTU heating capacity, this model provides faster warm-up times than standard 50K units and is well-suited for pool owners looking to extend their swimming season from spring through fall. The horizontal airflow design allows for flexible installation in areas with limited vertical clearance, while maintaining quiet, efficient operation.

Recommended Pool Sizes

Above-Ground Round Pools

• 15 ft round

• 18 ft round

• 21 ft round

• 24 ft round

Above-Ground Oval Pools

• 12 ft × 24 ft

• 15 ft × 30 ft

• 18 ft × 33 ft (climate and insulation dependent)

Inground Pools

• 10 ft × 20 ft

• 12 ft × 24 ft

• 14 ft × 28 ft (ideal in moderate climates)

Actual performance may vary based on climate, wind exposure, pool cover usage, and desired water temperature.

Energy-Efficient Inverter Performance

The inverter-driven compressor ramps output up or down as needed, reducing electrical draw, minimizing wear on components, and delivering smoother, quieter operation. This results in lower operating costs, improved temperature stability, and longer equipment life compared to traditional on/off heat pumps.

Ideal For

• Medium to large above-ground pools

• Small to mid-size inground pools

• Pool owners seeking lower energy consumption, quiet operation, and consistent water temperature

• Replacing or upgrading from a 50K BTU heat pump

The PASRW040-P-BP122 55K Inverter Horizontal Heat Pump is an excellent choice for pool owners who want dependable heating performance, modern efficiency, and flexible installation — all in one powerful, energy-saving system.