Step
1
Determine the desired temperature rise based on pool use
The desired temperature rise for continuous use (summer) is 1 degree
F/Hr. for intermittent use (weekends/holidays) 2 degree F/Hr.
Step 2
Determine pool capacity
Rectangular Pools; Capacity (gal) = 7.5 x length (ft) x width (ft) x
average depth (ft)
Circular Pools; Capacity (gal) = 5.9 x diameter squared (ft) x average
depth (ft)
Step 3
E-ZEE Flow Heat Exchanger
required
Once the pool capacity has been determined, select the recommended E-Zee
flow heat exchanger from the selection table based on the desired
temperature rise.
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Step 4
Check heat loss to surroundings
Heat loss (BTU/Hr) = 12 x (Pool surface area, sq. ft.) x (desired pool
temp., degree F) - (coldest average air temp. during use (degree F).
The boiler output in step 3 must be higher than the heat loss to the
environment.
Note: The typical desired pool temperature is 75 degrees to 80 degrees
F.
Note: The temperature rise rate will decrease as outdoor temperature
decreases.
Example: Pool size = 30 ft x 20 ft x 6 ft deep (avg)
Usage = Continuous
Coldest anticipated air temp. = 65 degrees F.
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Step 1
For continuous use, the desired temperature rise is 1 degree
F/Hr.
Step 2
Pool Capacity = 7.5 x 30 ft. x 20 ft x 6 ft. = 27,000 gal.
Step 3
From the selection table, for a 28,000 gallon pool and a 1
degree F/Hr rise: Required boiler output = 234000 BTU/Hr, Required heat
exchanger = Model EZ-250
Step 4
Surface area = 30 ft. x 20 ft. = 600 sq. ft.
Heat loss = 12 x 600 (sq. ft.) x (80 - 65)(degreeF) = 108,000 BTU/Hr
Heat loss is below boiler output capacity.
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Nominal Values |
Quick Sizing Reference |
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Typical
Swimming Pool Installation
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Contact
Diversified Heat Transfer Inc., 1710 Flushing Avenue, Ridgewood, New
York 11385