How Solar Pool Heaters Work

Learn more about the parts of a solar pool heater and how solar pool heaters work.

Solar pool heaters are popular among those who choose earth and environmentally friendly options. It is said to be the most effective application of solar power in recent times. Compared to gas pumped and electric pool heaters, solar pool heaters prove to be the most ideal in terms of the process it uses to heat the water in your swimming pool whatever the time of year. The cost of choosing a solar pool heater is also significantly lower than other regular methods of heating your swimming pool.

So how do solar pool heaters work?

Solar Pool Heater Parts

Almost all solar pool heaters have the following:

  1. Solar Panel – From the pool, the water will then go to this panel through a system of channels which are already warmed by the sun’s rays and heat.
  2. Pool Filter – The solar pool heater is also equipped with filtration systems that clean the dirt such as leaves and other substances that may be found in the pool water.
  3. Pump – The pump is the part of the solar pool heater which is responsible for taking the water from the swimming pool and sending it through the solar collector and filtration system and back again into the pool.
  4. Flow Control Device – This part controls the volume of the water that is being sent through the solar collectors. In some cases, a flow control valve may be placed and applied to bypass the solar collector altogether.

How they Work

Water from the pool moves through the filtration system in order to be cleansed of debris and then goes through the solar collector. It is here where the water flows through the channels of the solar collector which are already naturally warmed by the rays of the sun. It is then cycled through the rest of the pipes of the solar pool heater and then back to the pool. In some locations, the climate is already hot which makes the swimming pool water too hot. The solar collectors can be used in these cases to actually chill the water back down.

In the event of the temperature of the pool water reaching a certain amount, some pool heating solutions permit the diversion of water to the solar collector to avoid having the water in the pool become too hot. These systems make use of sensors that may function automatically or manually, controlling whether the water passes through the solar heater or bypassed and flows into the pool filter directly instead.