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Many articles have been written about air source heat pumps utilizing ambient air to transfer heat instead of creating it, thus, saving you money on electrical use. With that being said, it is also known that air source heat pumps need the humidity from the air to be faster when transferring this heat and warming your pool water quicker. Will a Swimming Pool Heat Pump Work in Dry Climate? We will explore this question during this article.
Most heat pumps are rated at 80°F (27°C) swimming pool water temperature, 80°F (27°C) ambient temperature, and 80% relative humidity. A heat pumps BTU output may drop by 6%, depending on equipment design, when relative humidity drops from 80% to 63%.
Yes it is true that air-source heat pumps operate better in temperatures over 50°F (10°C) and a heat only swimming pool heat pump can work effectively down to the mid to lower 40°s. However, a point to remember is that ambient temperature plays a major role when it comes to air-source heat pumps. The colder the air, the less heat your heat pump will be able to produce.
Reversible units, such as AquaCals ICEBREAKER, can operate when the outside temperature is down to mid to low 20°s, a good rule of thumb of for these units: The highest water temperature rise you can get from an air-source heat pump is 30° (In a perfect world/perfect conditions). For example, if the outside air temperatures average is 30°F the hottest temperature you will get out of your pool is around 60°F.
The higher the water temperature and the lower the humidity, the greater the evaporation rate will be in the pool. The cooler the outside air being drawn into the heat pump is, the more energy an air-source heat pump will use in relation to the heat produced. However, if living in an area of warm or mild weather, this would not usually be an issue.
Air-source heat pumps can operate in a variety of weather conditions. You could have cold weather, high temperatures low or high humidity and a heat pump can be for you. The difference would be in efficiency and how long it would take for the unit to heat your pool to your desired temperature.
For those of you in cold weather climate, an air-source heat pump can also be used, like the AquaCals ICEBREAKER, if you would like to learn more about how these heat pumps work, please click here
Please feel free to leave us any comments and/or questions, we would be happy to answer them for you!