Hayward Pool Heater Selection Guide

(Selecting the Correct Size Heater)

Determine your pool's surface area in square feet.

Area = (A+B) x L x .45   Area = R x R x 3.14   Area = L x W

Locate in the desired table below, the surface area to or just greater than the pool's surface area, read to the left and select the appropiate heater.

For indoor pool installations divide the pool's surface area by 3.

Tables are based on a 30 degee rise, 3½ MPH average wind velocity and elevation of up to 2,000 feet above sea level.

Recommended H-Series Heaters for Spas / Hot Tubs Time in minutes to Raise Spa/Tub Temperature 30 Degrees   SPA/TUB SIZE IN GALLONS Model 200 300 400 500 600 700 800 900 1000 H400 9 14 19 23 28 33 37 42 47 H350 11 16 21 27 32 37 43 48 54 H300 12 19 25 31 37 44 50 56 62 H250 15 22 30 37 45 52 60 67 75 H200 19 28 37 47 56 66 75 84 94   Saving Money by Saving Energy Selecting a high efficiency heater for you new installation, or replacing an older inefficient model can have a significant impact on your fuel bill. Here are some additional energy saving tips: 1) Check your pool chemistry regularly to maintain top operating condition. 2) Set your pool's water temperature between 78 to 82 degrees for most applications. 3) Use pool cover or thermal blanket on your pool when it is not in use. Evaporation accounts for 70% of heat loss from your pool. 4) Add wind breaks to your pool. A 7 MPH wind at the surface of a pool can increase energy consunption 300% !     Recommended H-Series for Swimming Pools   Model Surface Area H400 1200 H350 1050 H300 900 H250 750 H200 600 H150 450     Example: Rectangular Pool: (20 feet x 30 feet) 20 x 30 = 600 ft. (Surface Area) Recommended H-Series Model H200

Page Created: 02/01/06