How does a heat pump work?
The advantages of heat pumps for swimming pools are undisputed: On the one hand, the water is always at a pleasant temperature, regardless of the weather. You can usually extend the bathing season into the cooler season . On the other hand, the pool heating of the pool water with the help of an air-to-water heat pump reduces energy consumption and thus costs, as it uses the air as a natural source of energy. The energy consumption is therefore almost only reduced to the electricity required by the heat pump. Another plus point is the assembly can be done without great effort.
Heat pumps for pool heating are used both indoors and outdoors and work according to the same technical principle in both areas and one can buy pool and spa products online at any time.This largely corresponds to that of a refrigerator, except that the circuit in the most commonly used air-water heat pump does not generate cold, but heat.
The outside air is sucked in via a fan. Then the excess energy is withdrawn from it and transferred in concentrated form via a heat exchanger directly into the swimming pool water. The heat pump is integrated directly into the filter circuit, and since the heat exchanger is constantly in contact with water, it should be made of corrosion-resistant material such as high-quality stainless steel.
However, if the chloride content is above 0.1 percent, as is the case with seawater baths or disinfection with salt, the heat exchanger must be made of titanium. Titanium heat exchangers can be flowed through with the full amount of water, those made of stainless steel are integrated via a bypass and are provided with a flow monitor that shuts down the compressor in the event of a lack of water.
Where should the pool heater be placed?
If the heat pump is installed outdoors, the housing should be made of weather-resistant material such as aluminum, stove-enamelled or plastic-coated steel. Furthermore, the pool heater should be placed in such a way that the front is open to the front so that the sound is not unnecessarily amplified by reflection and thus increases the noise level.
The back can stand close to the house or garage wall, except for a small distance. If the pool heater is housed inside, the devices must be designed differently. Usually these are larger than the outdoor models and differ in the type of fan. They have a duct connection and have a silencer and outside air grille.
An important aspect when buying a heat pump for the swimming pool is a low noise level, which is very important in the manufacture of high-quality equipment. For example, large and slowly rotating fans work very quietly and the installation of the compressor in a separate compartment also reduces noise.