Propane pool heaters are used by homeowners that favor gas pool heaters but do not have access to a natural gas supply. These heaters use LP gas as a fuel source and it is stored in a tank near the heating unit.
Propane heaters are used by homeowners to heat their above ground swimming pools since they are cheaper to purchase and install than solar heating systems and heat pumps. Gas heaters can also raise the temperature of the pool water in a shorter period of time. Gas pool heaters also have the ability to heat the water to a higher temperature than the non-gas systems.
The combustion of propane is the heat source, and the unit's heat exchanger transfer this heat energy to the pool's water though the circulation pump. This can be the same pump that is used for the pool filter if it is sufficiently sized.
However, propane pool heaters have a very high operating cost due to the low efficiency of gas pool heating units and the high cost of LP gas. LP generally cost twice as much as natural gas. Despite the fact that they have the lowest heating efficiency, new advances in gas pool heating technology have demonstrated that they can operate at up to a ninety-five percent efficiency rating.
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 TELEDYNE LAARS LITE 2 LJ SWIMMING POOL HEATER 325K BTU  US $1,770.95
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 Jandy Propane Swimming Pool Heaters 250,000 BTU US $1,419.99
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 Hayward aboveground pool heater 250,000 BTU US $375.00
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 Hayward H 300 Pool Heater US $250.00
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 Above Ground Solar Pool Heater GAME Aquaquick PRO NEW US $111.11
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 HAYWARD 100K BTU Above Ground Pool Heater Spa PROPANE US $659.00
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 Raypak Heater Propane & Natural Gas Pilot IID 002003F US $64.95
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 55,000 BTU Pool & Spa Heat Exchanger US $249.00
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 Hayward H250FDP Pool Spa 250 K btu H250 Low NOx heater US $1,488.00
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 HAYWARD 100k BTU PROPANE GAS POOL HEATER H100IDP1 US $674.99
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 Hayward H400FDP Pool Spa 400 K btu H400 Low NOx heater US $1,720.10
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 STA RITE 333 BTU NATURAL GAS HEATER Max-E-Therm SR333NA US $1,495.00
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 Hayward 400K BTU Natural Gas Pool or Spa Heater H400FDN US $1,995.00
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 Hayward 250K BTU Propane Swimming Pool Heater H250FDP US $1,489.00
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 6-4'X12' Inground Solar Panel Inground Solar System US $1,599.99
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 Hayward 150,000 BTU Millivolt Propane Gas Pool Heater US $1,339.00
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 Hayward heater 100,000 btu for AG pool and spa H100ID1 US $674.99
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 Jandy Lite 2 LJ In Ground Pool Heater Nat Gas / Propane US $1,589.00
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 Hayward 100k BTU Natural Gas Pool / Spa Heater H100ID1 US $673.99
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 Lochinvar ERN302 Natural Gas Swimming Pool Heater US $1,999.99
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Propane pool heaters can be most efficiently run by operating them for short periods. This is suitable for these heating units becasue they raise the water temperature very quickly. They are best used when the water does not need to be heated all the time for pools that see constant use. This is great for most consumers, because this is how they use their swimming pools.
Propane heaters require LP as their fuel source, and this is usually stored in a nearby tank that is rented from the LP supplier. Also, an electricity source may be needed it the heater uses an electronic ignition system.