If you are getting ready to purchase a swimming pool heater and want to know which is best for you. This is a common problem for many people because there are so many types of heaters available. We were surprised to learn that their are so many different kinds of heater options for your pool and hot tub including propane. Here is a some information on each type of swimming pool heater to help you choose the best one for you and your needs.

Solar Heaters

Solar heaters use solar panels to transfer heat from the sun to your swimming pool. As solar panels sit in the sun, they collect heat. Then, the swimming pool pump pushes water through the circulation system and through the solar panels. As the water passes through the solar panels, it heats. Because of solar heaters reliance on the sun, many swimming pool owners use auxiliary heaters during nights and cloudy days.

Gas/Propane Heaters

Gas heaters burn either natural gas or propane to create heat. Gas burns inside a combustion chamber, which contains a series of copper coils. As the gas burns, water passes through the coils and heats. Gas heaters have historically been the most widely-used swimming pool heaters, though their popularity is decreasing due to high gas prices and the advent of and efficiency of heat pumps.
Advantages of Gas Heaters
• Inexpensive to purchase: many available for under $1,500
• Operate independently of air temperature
• Heat pool water quickly

Disadvantages of Gas Heaters
• Expensive to operate: monthly operating costs between $300 and $500
• Not energy efficient: COP between 0.80 and 0.85
• Lifespan of five years
• Not environmentally friendly: emit air pollution

Heat Pumps

Heat pumps use electricity to transfer heat to your swimming pool. Air-source heat pumps transfer heat from the air, and water-source (geothermal) heat pumps transfer heat from water. You can click here to learn how air-source heat pumps work, and here to learn how water-source heat pumps work. Because of their energy-efficiency, heat pumps have rapidly grown in popularity.