Geothermal Pool Heater

pool heater
Heater designed to heat water in a residential swimming pool (Aero Series).
An affordable way to heat your pool.

geothermal
The geothermal gradient is the rate at which the Earth's temperature increases with depth, indicating heat flowing from the Earth's warm interior to its cooler surface. Away from tectonic plate boundaries, it is 25-30°C per km of depth in most of the world.
An electric generating station in which steam tapped from the earth drives a turbine-generator, generating electricity.
of or relating to the heat in the interior of the earth
Of, relating to, or produced by the internal heat of the earth