How Do You Figure Pool Heater Size Needed?
Choosing the right size heater for your swimming pool is very important to make sure that the pool will be warm enough and that you minimize energy costs. A larger heater will result in larger utility bills, but a smaller heater will wear out quickly because it is overworked. The size you need depends on the surface area of your pool, the water temperature you want and the temperature of the air. The size is measured in British thermal units per hour. Calculate the surface area of your pool. For a rectangular pool, multiply the length times the with. For a circular pool, square the radius and multiply by pi (about 3.14). Decide on the temperature that you want your pool to be set at. Most pools are set around 80 degrees Fahrenheit, but you might want it to be a few degrees warmer if you are elderly or have young children. Determine the coldest air temperature your pool will be exposed to while in use. For example, if you plan to leave the pool open year round, use the coldest temperatu
