Solar Pool Heating

Pool Heating with Solar Collectors

Solar pool heaters are a great way to back up your typical heating system, saving pool owners cost in heating their pool. By using solar panels to heat your water by the sun, you are reducing the energy cost of heating your pool naturally.

Saving Money with Solar vs Traditional Heaters

You can significantly reduce swimming pool heating costs by installing a solar pool heater. They're cost competitive with both gas and heat pump pool heaters, and they have very low annual operating costs. Actually, solar pool heating is the most cost-effective use of solar energy in many climates.

How They Work

  • A solar collector — the device through which pool water is circulated to be heated by the sun
  • A filter — removes debris before water is pumped through the collector
  • A pump — circulates water through the filter and collector and back to the pool
  • A flow control valve — automatic or manual device that diverts pool water through the solar collector

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Pool water is pumped through the filter and then through the solar collector(s), where it is heated before it is returned to the pool. In hot climates, the collector(s) can also be used to cool the pool during peak summer months by circulating the water through the collector(s) at night.

Some systems include sensors and an automatic or manual valve to divert water through the collector(s) when the collector temperature is sufficiently greater than the pool temperature. When the collector temperature is similar to the pool temperature, filtered water simply bypasses the collector(s) and is returned to the pool.

Installation and Options

The proper installation of a solar pool heating system depends on many factors. These factors include solar resource, climate, local building code requirements, and safety issues. Therefore, it's best to have a qualified solar thermal systems contractor install your system.

Passive Solar with an Attic Heater

Another approach to natural pool heating is to install an attic pool heater that pulls heat form your home or pool house attic, This will also cool your attic as an additional benefit.

solarattic-pool-heater-diagram