Size does matter when choosing a pool heater.  Especially a gas pool heater.  To help you choose the proper size, there are a few simple steps to do.

First:  Determine what temperature you would like to keep your pool during the coldest months of operation.

Second:  Look at the average temperature during the coldest months in your area you when you would be using your pool.

Third:  Subtract the average temperature of the coldest month from the temperature you would desire.  This will give you the temperature rise that your pool will need to reach your desired temperature.

*This is only the first few steps.  For a gas heater to be efficient, you need to properly size your heater.  To determine the proper size heater simply follow these additional steps.*

First:  Determine your pool's area square footage.  To do this multiply the length times the width

( L x W = area).

Second:  Multiply the pool area x the temperature rise x 12.

This formula will give you the btu/hour output requirement.  Now click here to see our wide variety of gas pool heaters.

* To help you determine your average monthly temperature, simply click on this site.

http://www.weatherbase.com/