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Swimming Pool Heaters: Choosing the Right Size

Posted by Josefine Koehn on Thu, May 10, 2012 @ 05:08 AM

swimming_pool_chester_nySince a heated pool can be used many more month in the year than a simple cold water pool, many customers want to know what size of pool heater they need for their pool. Here are the factors you should take into account.

Consider the size of the pool
First of all, you need to know the size of your pool to calculate the amount of water you need to heat and – another important factor – the surface area of your pool.

Talking about the surface area, you should also consider how exposed your pool is to the wind. If possible you should already consider this while planning and designing your pool area. The more protected the pool is, the warmer the water will stay. There will also be less evaporation, which means, you do not have to heat all the cold water you need to refill the pool.

The use of a pool cover is also worthwhile. Pools that are not covered can loose about 4° F to 5° F overnight. A cover can lessen this amount by 50%. Using a solar cover can also help preserve some degrees, but it is very work intensive since those covers have to be rolled up per hand.

Consider the air temperature
What is the air temperature in the coldest month you will be heating the pool? And what temperature do you want the water to be heated? Do you just want to heat the pool on the weekends or do you want to heat the pool constantly.

Rule of thumb
There is a fairly simple rule of thumb to calculate the required size of a heater for your pool: Multiply the area of your pool in squarefeet with the temperature increase needed in the coldest month and than multiply this number by 12. For example, if you have a 20 feet by 30 feet pool and would need the temperature increased by about 4° F in the coldest month you use the pool, you should consider a heater model ranging up to 28.000 BTU. (One BTU is the amount of energy needed to increase the temperature of one pint (or pound) of water by one degree Fahrenheit.)

There are also many different types of pool heaters, like solar, electric, natural gas or propane. Contact Jamie Snyder of The Albert Landscaping Group to discuss which heater will work best for your pool.

Tags: swimming pools, swimming pool heater


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