Heat Pumps are energy efficient electric pool heaters, that work by transferring heat from the surrounding air into the pool water, rather than generating heat themselves. In terms of energy used to heat they typically are more efficient then a gas powered heater. These units require temperatures above 10 degrees Celsius to perform efficiently.
What Size of Pool Heater Do I Need?
Pool Size
Gas Heater Size
Heat Pump Size
Electric Heater Size
15' Round
100,000 - 150,000 BTU
50,000 - 70,000 BTU
5KW
18' Round
100,000 - 200,000 BTU
50,000 - 70,000 BTU
10KW
21' Round
100,000 - 200,000 BTU
70,000 - 85,000 BTU
10KW
24' Round
150,000 - 250,000 BTU
85,000 - 110,000 BTU
15KW
27' Round
200,000 - 300,000 BTU
110,000 - 140,000 BTU
18KW
30' Round
250,000 - 350,000 BTU
140,000 BTU
30KW
12' x 24'
100,000 - 200,000 BTU
70,000 - 85,000 BTU
10KW
14' x 28'
150,000 - 250,000 BTU
85,000 - 100,000 BTU
10KW
16' x 32'
150,000 - 250,000 BTU
100,000 - 140,000 BTU
15KW
18' x 36'
200,000 - 300,000 BTU
110,000 - 140,000 BTU
24KW
20' x 40'
250,000 - 350,000 BTU
140,000 BTU
24KW
Note: All figures above are approximate and based on a constant depth of 48" and a desired temperature increase of 10 degrees. Use only as a guideline, add a solar cover to your pool for best results.
