In order for 20,000 gallons of pool water to heat 30 degrees, you would do the following calculations: Benefits of Using A Swimming Pool Water Heater

That means an average pool heater between 300,000 and 400,000 BTU’s will cost anywhere from $3.30 to $4.40 per hour to heat your pool.

Connectors Model# NS1004 $ 151 57 $ 151 57. Smartpool S601P SunHeater Solar Heating System for In Ground Pool. A Heat pump is the most energy efficient solution to heat your pool in warmer climates. FlowXtreme Premium 21 in. Heating up a pool versus a pool and spa combination requires less BTU power. Fafco Solar Bear Economy Heating System for Above-Ground Pools. XtremepowerUS Inground/Above Ground Swimming Pool Solar Panel Heating System 28" X 20' 3.5 out of 5 stars 157 #30. They heat your pool very quickly, as does natural gas, but with the use of propane. You find this out by matching the BTU output to the pool size in gallons. In fact, heat pumps provide energy savings up to 70% over gas heaters. Or approximately 100K BTU’s for every 10,000 gallons of pool water.

A higher rated pool heater (BTU’s) will enable your pool to be heated at the correct temperature without straining and stressing the heater.

You could choose a smaller sized heater and still be able to heat the water. It is a good idea to add an extra 15-20% to the heating capacity you arrive at to make up for inefficiencies in the system. So for this example we have a maximum temperature differential of 30 degrees Fahrenheit along with a 24-hour heating window. Sizing a gas heater for inground pools is done by first matching pool heater BTU output to pool size in gallons. Propane Pool Heaters: Propane Heaters are very similar to gas in the way they function. EcoSmart SMART POOL 18 Electric Tankless Pool Heater, 18kW, 240 Volt, 75 Amps with Self Modulating Technology 3.0 out of 5 stars 51. For inground pools less than 20,000 gallons, small gas heaters like the Raypak 206K BTU output are suitable.

Compare. For a 30,000 gallon pool, 120K BTU would be good, while 140K BTU is good for one with a 40,000 gallon capacity.

Dome Solar Pool Heater for Above Ground Pools with Standard 1.25 - 1.5 in. This calculator is approximate because it doesn’t account for the many factors that impact heat loss in the swimming pool. Free delivery. Before installing the unit, you will need to know if it is suitable for your pool size. Another example, if your pool is 15,000 gallons: 15,000 x 8.33 = 124,950 divide by 24 = 5,206 Pool is at 55⁰F and required temp is 82⁰F so rise is 82 - 55 = 27. Above ground pool chillers operate in the 50K-70K BTU range, and our in-ground pool chillers and heat-cool pumps offer up to 140K BTU output for pools over 40,000 gallons.

A 400k BTU heater will roughly heat your pool twice as fast as a 200k BTU heater, but it also burns gas twice as fast. $979.00 - $1,083.75 #29. This item EcoSmart SMART POOL 27 Electric Tankless Pool Heater, 27kW, 240 Volt, 112.5 Amps with Self Modulating Technology. SmartPool S240U Pool Solar Heaters. Heat pumps capture heat from the surrounding air to heat the pool water and are particularly good if you want to maintain a constant pool water temperature. BTUs per hour required are: 27 x 5,206 = 140,562 BTUs. The most important thing about purchasing a pool heater is determining the correct size for your above ground pool. The exact time needed to change the pool temperature will vary based on evaporation rate, convection losses, thermal radiation losses and conduction losses (explained more below). It will just take longer to do it.