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How To Size A Pool Heat Pump?

Nov. 24, 2021

Swimming Pool Heat Pump

Swimming Pool Heat Pump

An inverter pool heat pump is a cost-effective and energy-efficient way to ensure that your swimming pool is at swimming temperature throughout the warm season. The inverter pool heat pump in this technology ensures that the temperature of your pool water is always maintained at the temperature you set it to.


Inverter pool heat pump technology

By drawing in warm air from the atmosphere and then transferring the heat to the outdoor swimming pool, inverter pool heat pumps provide consistent water temperatures. Because they can draw heat from the atmosphere under any conditions, this makes them more consistent than solar pool heating systems.


For convenience and consistency, inverter pool heat pumps allow you to set the desired water temperature, which will be achieved automatically by the pool heat pump. Inverter technology allows the set temperature to be reached and maintained more precisely and efficiently than other heating systems. In some inverter pool heat pumps, your unit can be fully controlled with wi-fi control.


Variable speed compressor technology

With this inverter pool heat pump technology, you can also adjust the speed of the compressor. This function ensures maximum efficiency and reduces costs due to lower energy consumption. The variable-speed compressor function only consumes the required power according to the set pool temperature. The self-regulating ability of variable speed pool heat pumps is what makes these systems deliver consistent water temperatures, giving you peace of mind that your pool will be ready to swim throughout the season.

Swimming Pool Heat Pump

Swimming Pool Heat Pump     

What size heat pump do I need for my pool?

The most important thing to remember when purchasing a pool water heater is to determine the correct size for your above ground pool.


Determining the pool heat pump sizing will save you money as a pool heater with the correct number of BTUs will limit the overall running time and reduce your electricity bill throughout the season. What's more, you will reduce the overall heating time of your swimming pool heat pump during the colder months when you most want to use the heater, thereby limiting the amount of electricity required to run the unit.


How many BTUs to heat a pool?

Size 4 BTU per gallon or 1 BTU per litre of water to be heated under normal summer conditions with an average ambient air temperature of 70°F over a 24 hour period.

Size 5 BTU per gallon or 1.3 to 1.5 BTU per litre of water. heats under normal spring and fall conditions with an average ambient air temperature of 60°F over a 24 hour period.

Sized at 6 BTU per gallon or 1.5 BTU per litre of water. heats under normal spring and fall conditions where the ambient air temperature averages less than 60°F over a 24-hour period.


Sunrain swimming pool heat pump is a smart and reliable solution to heat the pool and spa. With most of the energy absorbed from the air, Sunrain pool heat pumps can heat the pool and spa all year round with much less cost. Running at low cost and without CO2 discharging, people can enjoy swimming or spa at pleasant water temperatures all over the year.


If you want to get more information about how to size a pool heat pump, welcome to contact us today or request a quote.   

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