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Get a Free Pool Analysis to find what size Geothermal heater you need to heat your pool

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AquaCal Geothermal Water Source Pool Heating Systems

Water Source heat pumps by AquaCal bring the warmth of the tropics or the cool of the mountains to your backyard or community swimming pool and spa. The Water Source transfers free heat from nearby wells, lakes, canals, or oceans to your swimming pool. It's safe, efficient, and gentle on the environment.

If you need a geothermal water to water pool application or a ground water heat pump system for residential, commercial or industrial use, please contact us or fill out a geothermal inquiry form.

Geothermal Features & Benefits

  • ThermoLink Patented Titanium Heat Exchanger (WS03 and WS05 only)
  • Best warranty in its class
  • Electronic control and monitoring system
  • Attractive marine grade aluminum for strength and durability
  • Super efficient scroll compressor
  • Dual pool and spa thermostat standard on all models
  • Heat and cool standard on WS05 & WS10
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When it comes to heating your pool year round with a pool heat pump, we recommend geothermal water to water pool heaters. Geothermal heat pump systems can be referred to as Ground Source Heat Pumps (GSHPs) and operate by harvesting heat from the greatest known solar collector in the world: The Earth.

The heat collected from the constant stable ground temperature is then transferred into your pool. This Geothermal swimming pool application works because although the air temperature in the winter could drop in some places to 30 below zero, underground temperature will remain in a constant 40 to 70 degrees depending on your location.

We specialize in Geothermal Water to Water GSHPs. This system can be used when you have a lake, pond or well, where an adequate supply of suitable water is available. The heat from that water source will be collected, concentrated with a heat pump and then applied it on your swimming pool to elevate the water temperature.

Note: Water to water heat pump models are specifically built for swimming pool heating only. If you need a Water to Water heat pump for a residential or commercial building heating applications please let us know as we have other models built especially for that application.