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Propane Heaters

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Propane Pool Heaters

About Propane Gas Pool Heaters

The right pool heater will extend your swimming season by weeks or months, and make even the cloudiest summer day perfect for swimming. There are many types and styles of heaters, but only one will reliably heat your pool in a matter of no time with the flick of a switch. Propane heaters will heat your pool faster than electric or solar heaters, and unlike the latter they don’t require clear skies to run. Whether it's day or night, propane heaters will heat your pool to the perfect temperature.

Millivolt vs Electronic Ignition

If you are considering purchasing a propane pool heater, be aware that there are some things you should consider. Millivolt propane heaters still use a constantly burning pilot light which is less efficient than more modern models, and can occasionally be difficult to relight. Modern propane heaters use an electric ignition switch similar to a gas stove. These electronic ignition versions are much more efficient (because they don’t expend gas on a constantly burning pilot light), but they do require an electrical connection.

Comparing to Electric or Solar Heaters

Propane heaters are inexpensive to purchase, and are arguably the most reliable pool heaters available on the market. However, they are not as environmentally friendly and are more expensive to install than solar and electric heaters, and you cannot install a propane pool heater yourself. However, if you’ve got a large pool or are looking for responsive heating, propane heaters are simply unrivaled. Electric and solar pool heaters simply don’t have the capacity to heat a large pool as quickly or consistently.

Heater Sizing Chart

Pool Size Gas Heater Size
15' Round 100,000 - 150,000 BTU
18' Round 100,000 - 200,000 BTU
21' Round 100,000 - 200,000 BTU
24' Round 150,000 - 250,000 BTU
27' Round 200,000 - 300,000 BTU
12' x 24' 100,000 - 200,000 BTU
14' x 28' 150,000 - 250,000 BTU
16' x 32' 200,000 - 300,000 BTU
18' x 36' 200,000 - 300,000 BTU
20' x 40' 250,000 - 350,000 BTU

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 and add a solar cover to your pool for best results.

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