45° - 50° F, If the temperature is lower than 50, the heat pump will cut off and display LP 

Heat pumps derive their heat from the air. There is enough usable heat for a Hayward heat pump to operate, efficiently, down to around 45° Fahrenheit. However, there may not be enough heat available to keep your pool or spa as warm as you would...

The heat pump BTU output and efficiency change as certain variables change. Air temperature, water temperature, relative humidity, and water flow rate all affect the output and efficiency of heat pumps. For comparison purposes we use the following ...

Coefficient of performance (C.O.P.) is a measurement of performance of the heat pump versus electrical input. When electricity is converted from watts to BTU’s of heat, the conversion is 3.4 BTU’s per watt of electricity, which is a C.O...

Turn off the power supply. Disconnect the unions on the water inlet and discharge lines. Tilt the heat pump slightly toward the fittings to insure all the water in the heat exchanger has drained out. 

Hayward does not offer a cover for their heat pumps. There are several outside companies that manufacture heater covers. Consult your local Hayward dealer for cover options. A cover is not required. 

There are two methods for testing for a leak on your heat pump.  (1) Turn the heat pump off, but leave the pool pump on to circulate water through the unit. If the heat pump is leaking it will leak whether or not it is running. The water around...

With gas heat, gas is burned and generates heat to heat your pool. With a heat pump, heat is transferred from the surrounding air to the pool water. Gas heaters can operate in almost any climate, and at almost any time of the year. Heat pumps must ...

Generally no. Heat Pumps work by transferring heat from the surrounding air to the pool water. If a heat pump is installed indoors there must be a continuous supply of warm air from which the heat pump can extract heat. If you must heat the air in ...