Pool Heater Btu Size

Use the swimming pool heater size calculator below.

Pool heater btu size. Heater efficiency is the ratio of output to input typically displayed as a percentage. H surface heat loss from pool through the surface mainly evaporation of water btu hr w. The usual recommendation is an increase of 1 to 1 and a half. Up to 300 sq ft.

H total h surface h heat up 1. Please note that heat rise varies when dealing with different heaters. H total total heat load btu hr w. Multiply that result by 12 to arrive at the required btu per hour output of the heater.

Surface area x temperature difference x 12 where surface area is the area of the pool in square feet temperature difference is the result of desired pool temperature current pool temperature and 12 is our constant number based on the assumption that wind speed is around 3 5 miles per hour. 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. All modern pool heaters are above an 80 efficiency rating. The heater input is the energy still in btu s that is used to generate the output heat.

Swimming pool heater size calculator. Usually if you have a pool and spa combination we recommend purchasing the largest btu size available because you re not just heating up a single. Heating up a pool versus a pool and spa combination requires less btu power. Gas pool heaters and propane pool heaters are the most powerful heating units available for residential pools.

These units have the highest btu output ranging from 100 000 up to 500 000 btu in some areas 400 000 btu in most parts of canada and the u s. 100 200 btu heaters. 1 000 gals to 10 000 gals. 200 300 btu heaters.

10 000 gals to 20 000 gals. Heater sizing for shared pool spa systems. Surface area of pool. So a reasonably safe bet for our example pool is a heater that is rated for around 250 000 btu s.

This figure represents the heater output necessary to heat the pool to the desired temperature in 24 hours. The heater output or btu is the energy that the heater will transfer to the pool water. Heater size in btu hr. Click calculate to get your.

The concept of btu ratings applies to all forms of pool heaters. The total required heat to increase and maintain the temperature in an outdoor pool can be calculated as.