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Thread: Homemade Heat Exchanger

  1. Back To Top    #1

    Join Date
    May 2009
    Chilliwack, BC, Canada

    Homemade Heat Exchanger

    My pool equipment is located in my garage and as such the pump is generating a lot of unwanted heat inside the garage.
    I was just thinking that I could kill two birds with one stone by wrapping the exterior of the pump motor with 1/4" copper tubing and teeing this run of tubing into the supply line back to the pool.....this would , 1. cool the motor, and more importantly cause the garage to not be so warm and 2. help to warm the pool....I know the temperature gain in the pool will most likely be negligible but....a good way to get rid of the heat in the garage.

    If I tee into the supply line in a spot approximately 6 inches after the filter and then tee in again 20 inches after the filter do you think I will get flow through the 1/4" copper tubing? I was thinking of using "y"'s instead?

    And ....btw, i will bond the copper heat exchanger to ground so as to avoid induced electrical problems in case of a problem.

    Love to be able to draw a picture but.....alas I'm computer
    16x32 Vinyl inground pool, 9-4'x10' solar panels, sand filter, Taylor K-2006 kit

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Homemade Heat Exchanger

    If you do that, you don't want to connect the copper to ground, instead connect it to the bonding system.

    You won't get hardly any water flow that way. Better to connect one side before the pump and the other side after the pump.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    May 2007
    South Central NJ

    Re: Homemade Heat Exchanger

    Not a good idea, IMO. If your PH goes down, it'll eat the tube. You would need to add the piping to the bond too. You would likely inject copper into the pool. When the motor dies, it'll be a PITA to swap it.

    If you have an attic above the garage, if there is an access door, crack it. The heat will go up.

    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

  4. Back To Top    #4

    Re: Homemade Heat Exchanger

    I would recommend against this. It's going to be more trouble than it's worth. One problem you might create is blocking the fan and vents that are built into the pump motor. You could easily end up trapping heat in the motor causing it to overheat and become damaged.

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