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Thread: Using a Gas Heater and a Heat Pump

  1. Back To Top    #1

    Join Date
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    Using a Gas Heater and a Heat Pump

    Has anyone had experience of using both a heater and a heat pump? I am looking to extend the pool season and use gas for Dec and March/April (in Washington DC) - I already have a heat pump to keep costs down during the rest of the year.
    Sean

    15 x 30 gunite pool with Riverflow Professional 12miles per hour flow (10HP silent ABB pump) to make the entire pool flow - Pentair Intellitouch i10 - Heat pump AquaComfort 110 - Raypak 399k Digital Gas Heater - Pool Pilot Digital SC-48 - Pentair FNS Plus 60 - Polaris 3900 Sport Cleaner on booster pump
    2 x Pentair Intelliflo pumps - one for filter (VF) and second for Venturi Pool Jets (VS) and Jandy 6 set deckjets - Pentair PG2000 Fiberoptic lighting - Automatic PoolCover (Brown) by Pool Cover Specialists

    Winter Pool Bubble by Ameri-Dome

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    Let me see if I understand. You have a heatpump and want to spend money to buy a gas heater - is that correct?

    I cannot understand why you would want to do this as it is much more costly to use gas to heat the pool. I have a heatpump, and recently added some solar panels so as to reduce electric consumption further.

    There would be no problem doing what you are proposing - I just don't understand why you would want to.
    20x40 IG vinyl, heatpump and solar and 3 siberian huskies, 10kw PV solar electric system. Nikon Photographer D800e dSLR.

  3. Back To Top    #3

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    Heat pump doesn't work below 40

    The reason for the gas is to heat the pool when the ambient temperature is below 40 as the heat pump will not operate well below that temperature. I do have a pool cover and am looking to try to use the pool for a few more months.
    Sean

    15 x 30 gunite pool with Riverflow Professional 12miles per hour flow (10HP silent ABB pump) to make the entire pool flow - Pentair Intellitouch i10 - Heat pump AquaComfort 110 - Raypak 399k Digital Gas Heater - Pool Pilot Digital SC-48 - Pentair FNS Plus 60 - Polaris 3900 Sport Cleaner on booster pump
    2 x Pentair Intelliflo pumps - one for filter (VF) and second for Venturi Pool Jets (VS) and Jandy 6 set deckjets - Pentair PG2000 Fiberoptic lighting - Automatic PoolCover (Brown) by Pool Cover Specialists

    Winter Pool Bubble by Ameri-Dome

  4. Back To Top    #4
    JasonLion's Avatar
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    I don't see any reason that wouldn't work. You will probably need to manually tell the heaters which one should be running at any given point, unless you want to spring for a fairly fancy control system. Just keep in mind that the cost of heating a pool with gas when the temperature is low enough to cause problems for a heat pump is going to be dramaticaly high.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  5. Back To Top    #5

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    ewsb,

    This is done quite frequently and usually where a heat pump just can't keep up, or shuts down due to cold temps. Actually the outer evaporator freezes up from the condensate water and quits. Most heat pump manufacturers offer a reverse defrost cycle that will thaw this frost, to allow operation down into colder weather conditions. AquaCal's models are called the Ice Breaker.

    Fortunately this dual heater set up is done mostly for diehard swimmers in cold climate regions and is only for brief periods of the year so the cost is not tooooo bad.

    You'll just need to install the gas heater after the heat pump and at a lower thermostat setting than the heat pump. When temps fall below the heat pump's ability to maintain it, the gas heater will kick on.

    Hope this helps,
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  6. Back To Top    #6

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    Thanks

    Sean

    Many thanks - that is what I heard from heatpumps.com and is what I will probably try.

    Sean
    Sean

    15 x 30 gunite pool with Riverflow Professional 12miles per hour flow (10HP silent ABB pump) to make the entire pool flow - Pentair Intellitouch i10 - Heat pump AquaComfort 110 - Raypak 399k Digital Gas Heater - Pool Pilot Digital SC-48 - Pentair FNS Plus 60 - Polaris 3900 Sport Cleaner on booster pump
    2 x Pentair Intelliflo pumps - one for filter (VF) and second for Venturi Pool Jets (VS) and Jandy 6 set deckjets - Pentair PG2000 Fiberoptic lighting - Automatic PoolCover (Brown) by Pool Cover Specialists

    Winter Pool Bubble by Ameri-Dome

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