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Thread: heater - 100 ft from pump/filter

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    heater - 100 ft from pump/filter

    Good morning,

    Just put in an above ground pool last summer and now are installing a gas heater for our 16*26 above ground pool BUT the filter/pump is about 100ft away from the main gas line. While we could have the gas line brought out- it is VERY expensive to do this so it was suggested that we install the gas heater close to the gas line, and simply run some Tigerflex hose from the heater back to the pump/ filter. Anybody done this? is there too much stress on the pump?

    Thanks for any advice you can provide!

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: heater - 100 ft from pump/filter

    Welcome to TFP!

    Running water from the pump out 100' and back 100' will require a different kind of pump than most above ground pools use. Long plumbing runs like that require a high head pump, while most above ground pumps are low head pumps. You might be lucky and have a medium head pump, which will kind of work, though the efficiency will go way down. But trying that will a low head pump will cause problems.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: heater - 100 ft from pump/filter

    How can I tell if it is a medium head pump?

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    Isaac-1's Avatar
    Join Date
    May 2010
    SW Louisiana

    Re: heater - 100 ft from pump/filter

    post the brand and model of the pump
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    mas985's Avatar
    Join Date
    May 2007
    Pleasanton, CA

    Re: heater - 100 ft from pump/filter

    A heater bypass would help so you are only pushing as much as the heater needs to work properly. This would help minimize the head loss in that line.

    Plus putting in flex is expensive. So is there any reason you can't use larger ridged PVC lines?
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater, ThePoolCleaner

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    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: heater - 100 ft from pump/filter

    Off the basic subject but a run off 100' (underground?) may noticeably reduce your heat gain.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: heater - 100 ft from pump/filter

    It is a Hayward pump
    Model number: has been scratched off but it is SP....
    11.8 Amp

    There is another number EC1309 next to the CSA sticker....

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    techguy's Avatar
    Join Date
    Jul 2010
    Antelope, CA

    Re: heater - 100 ft from pump/filter

    Would it be cheaper to install a propane tank, convert the heater to propane heater, and install it near the pool as opposed to 200 feet of pipe and all the associated heat loss and pump issues?

    Just an idea.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

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    Join Date
    Apr 2013
    Westside LA, CA

    Re: heater - 100 ft from pump/filter

    I would try to get better quotes on running that gas line (or DIY) - In the long run that might be less expensive than 200ft of pipe and associated heat losses.
    32x15 IG Borate+Salt, Pentair VS+SVRS, howard swim pure 40 SWG, Pentair 4000 48sqft DE, Mastertemp 300, Electric Pool Cover, Polaris P93, 4 Kids for Aeration, ;)

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