What would it cost to heat my pool with a standard fossil fuel heater?
There are approximately 900,000 swimming pools (including above-ground) in Florida, and most of them must be heated during the cooler months to maintain comfortable swimming conditions. An unheated pool will stay generally at about the average outdoor temperature, which may be as low as 53°F in north Florida in winter. For the typical user, comfortable pool water temperatures are 78°F to 82°F in spring and fall and 76°F to 78°F in winter. Average yearly cost for heating a residential pool in Florida is $1,450 using electrical resistance (electricity at $0.09/kWh), $500 using an electric heat pump and $580 using natural gas. Liquid propane would cost the same as electrical resistance.