Gas pool heaters use either natural gas or propane gas and can be sited either indoors or outdoors. As the pump circulates the swimming pool water, the water drawn from the pool passes through a filter and then to the heater.
In The Swim Knowledge Pool: Natural Gas Pool Heaters Fast, Reliable Natural Gas Swimming Pool Heaters. Natural gas pool heaters are a reliable and efficient way to warm your pool water to your exact preferred temperature, in any outside conditions.
The most popular swimming pool heating solution going, Gas Boilers are a worthwhile investment: whilst they might be more initially expensive than electric heaters, natural gas boilers are actually much more economic to run, providing a reliable, speedy and energy efficient warm up at any given time.
For an outdoor swimming pool, use the following tables to help estimate your annual heat pump pool heater costs and savings compared to using an electric resistance or a gas pool heater. Table 1 estimates annual swimming heat pump pool heating costs by location, by water temperature , and with or without using a pool cover .