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Thread: Looking for Electric Heater for 4500 gallon pool

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    Join Date
    Jun 2013
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    Minnesota
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    Looking for Electric Heater for 4500 gallon pool

    Hey all! The pool is starting to melt and the family is insisting on a heater for the summer. I can't run gas to where it would need to go so i'm looking for something electric that I can use but i have NO idea what to look for. I'm also hoping i can find something that can run off 120v so i don't have to run new electrical line.

    Any advice would be greatly appreciated.
    --- Pool Status - Ice Cube
    18'x9'x52" Intex Rectangular Pool with Krystal Clear 2560gpm Sand Pump and Krystal Clear Salt Water System
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    SuzyAbbott's Avatar
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    Dec 2011
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    Hamilton, NJ
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    Re: Looking for Electric Heater for 4500 gallon pool

    We had two ecosaver solar panels with our intex and it worked great. We use a separate intex filter for the solar so you can run as needed. We have four panels with the new pool. In full sun we had the intex up to 98 degrees, what's nice is that you can run the solar at nite to drop the water temp too! You're at about $400 for two 20' panels and the small filter and hoses and a weekend to set up and stop leaks!
    24' Sharkline Matrix. Coral Reef Liner. Clearwater II Cartridge Filter. Saltron Retro Salt WaterGenerator. 4x20 Ecosaver Solar Panels, Rover Jr. robot vac. Fiberglass Steps and Lifesaver pool fence/gate.

    Previous pool: 9x18 intex with salt water generator and vinylworks 5x10 deck.

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    TFP Guide

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    Re: Looking for Electric Heater for 4500 gallon pool

    No way you will get anything to run on 120 to heat a pool. figuring a 15 amp draw on the 120 line would give you 1800 watts of heat. That converts to roughly 6,000 BTU's. You have roughly 38,000 lbs of water to heat. At that BTU rate it would take at least 6 hrs to get a one deg temp rise (not counting in heat loss). Idealy you would want a 100,000 BTU heater for that pool and that would give you about a 2 deg temp rise per hour.

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    Re: Looking for Electric Heater for 4500 gallon pool

    So if i can get a 240 supply to the pool what would be a recommendation for heater?

    As for solar, i'm afraid i just don't have the space for the panels. My yard is taken up by too much stuff already and the house is not in a convenient place to allow me to run the water to the roof and back.
    --- Pool Status - Ice Cube
    18'x9'x52" Intex Rectangular Pool with Krystal Clear 2560gpm Sand Pump and Krystal Clear Salt Water System
    Hayward Skimmer with (2) 1 1/2" Hayward Returns
    16mil Klear Choice Solar Blanket

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    TFP Guide

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    Re: Looking for Electric Heater for 4500 gallon pool

    to get a two deg temp rise per hour you would need a 30,000 watt heater. That is roughly the equivalent of a 100,000 btu's. that type of power at 240 will need a 125 amp feed.

    You still will not like the power bill but, you will be able to heat the pool at about 2 deg per hour

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    JasonLion's Avatar
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    May 2007
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    Re: Looking for Electric Heater for 4500 gallon pool

    A heat pump makes more sense, as they are much more efficient than a resistive electrical heater. Still, it is going to be very expensive.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Jun 2013
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    Re: Looking for Electric Heater for 4500 gallon pool

    I'm definitely leaning towards a heat pump but i'm not sure what size, brand, etc i should go with. I was hoping someone might have a similar setup and could make a recommendation.
    --- Pool Status - Ice Cube
    18'x9'x52" Intex Rectangular Pool with Krystal Clear 2560gpm Sand Pump and Krystal Clear Salt Water System
    Hayward Skimmer with (2) 1 1/2" Hayward Returns
    16mil Klear Choice Solar Blanket

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