Electric Pool Heater Sizing

For something as large as a swimming pool even smaller ones electric element heaters are not ideal.

Electric pool heater sizing.

Heatpro heat pump high. An undersized pool heater will heat too slowly and a severely oversized pool heater may end up unnecessarily driving up the cost of this big investment. Sizing a heater properly means your pool water will heat to your desired temperature in the desired timeframe. To heat in normal summer conditions when ambient air temperature average 70 f in a 24 hour period.

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. 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. What size pool heater is a simple question to which there is no simple answer. According to pool center the general rule for knowing the size of the heat pump you need for your pool is 50 000 btu pool heater for 10 000 gallons of water.

For example if you re working on a pool with an attached hot tub most installers would suggest a 400 000 btu heater which is the largest available in most residential applications. Heater size in btu hr. Size at 5 btu s per gallon or 1 3 to 1 5 btu s per litre of water. General rule of thumb with heaters.

60 amps is a huge electrical draw. A 400k btu heater will heat a pool twice as fast as a 200k btu heater and burn gas twice as fast. It s usually a matter of picking a model you ve used in similar applications. Heating up a pool versus a pool and spa combination requires less btu power.

Usually if you have a pool and spa combination i recommend purchasing 30 higher btu for example going from a 300k to a 400k. Hayward electric spa heaters contain all of the sophisticated features and capabilities of heaters twice their size. 20 000 gallons will need a 100 000 btu heater. Rules for sizing your heat pump pool heater size at 4 btu s per gallon or 1 btu per litre of water.

This heater would require up to 60 amps of electrical draw and can output a maximum of 37 000 btu s. Select to compare. Therefore if you ve got 15 000 gallons of water you ll require a 75 000 heat pump. Bigger is better but to a certain point.

Hayward s advanced line of heaters delivers the ultimate in comfort and energy efficiency while maintaining ideal pool spa water temperature all season long.