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Home > School Of Pool > Connect Your Pool Heater To The Filter

How to Connect the Pool Heater to the Filter

Swimming pool heaters are responsible for heating the water. The heater is installed outside of your pool between the pool and the pool filter. The pump pushes water through the pool filter, into the water heater where the water is heated, and back into the pool. Adding a pool heater to your pool plumbing system only takes a few steps and will increase your swimming time in the pool

  1. Step 1

    Test the water with a pH test kit and add the necessary chemicals to balance the water. It's important that the water be balanced before you begin installation of the pool heater.

  2. Step 2

    Turn off the pool pump and for added safety disconnect from the power outlet. Clean the pool filter and skimmer of all debris.

  3. Step 3

    Locate a spot for the pool heater. The pool heater should be on level ground about three or four feet away from the pool filter. Use a leveling tool to be sure the area is level.

  4. Step 4

    Attach a PVC pipe from the pool filter return valve to the inlet valve on the pool heater. Cut the PVC pipe to fit the area using a small saw or a sharp cutting blade. Use another section of PVC pipe to attach the return valve jet located on the side of the pool to the outlet valve on the pool heater.

  5. Step 5

    Set the thermostat on the pool heater to your desired temperature. Reconnect the pool pump to the power outlet and turn it on. Wait for the water to cycle through the pool filter and the pool heater.

  6. Step 6

    Check for any leaks on the newly installed PVC pipe. If there are any leaks, turn off the pool pump and secure the leaky areas with PVC compound.

How to add a Solar Heater to Your Swimming Pool

  1. Step 1

    Why not use the power of the sun to heat your pool? A solar cover utilizes that power but can be a pain to take off and put on if you don't have a reel system. A solar heater takes the energy produced by the sun and can warm your water by as much as ten degrees!

  2. Step 2

    If you have never thought about it before, then why not consider it now! The whole planet is trying to go green, so why not you and your swimming pool? It's pretty simple to do. All you need is a filter system with at least a 1 h.p. pump and a solar heating kit.

  3. Step 3

    The instructions will come with the kit, but I want to give you an idea of how the solar heater works. A typical solar heater will measure about 2- 1/2'wide x 6' long. It comes rolled up like a mat, but quickly unrolls and can be placed near your pool on the lawn. It is comprised of a series of thin channels that form one complete circuit or tunnel if you will.
    What you do is hook this up to your circulating system just after the water has passed through your pump and filter.
    Before it returns to your pool, it is forced to travel back and forth through these black plastic channels that have been absorbing the heat of the day.

  4. Step 4

    As the cool water goes through the heated channeling that heat is transferred to the water raising its temperature.
    Once it exits the solar heater it resumes its journey through your return inlet hose and goes back into the pool. The cumulative effect of all of your pool water coursing through the solar heater can make a marked and very noticeably difference in pool temperature.

Tips & Warnings
  • If you use a solar heating system, make sure to place it somewhere out of the way, but still close enough to the pool. If necessary, you may have to get several longer lengths of hose to make it adapt to your landscape.
  • The black plastic can break, so do not let anyone walk on it or drive anything over it like a riding mower.
  • A roof kit can be purchased so you can put it on a nearby roof to catch the absorbed heat. Just remember that your pump has to have enough power to push that water through this system and then back to your pool, so it shouldn't be too far away or you'll lose pressure and that will effect your circulation.
  • The kit comes with a bypass valve that you should turn when its cloudy out so that your water bypasses the cool plastic of the solar heater on that particular day.
  • Make sure that all connections are very tight. A hose connection that comes apart when you're not around can be a very costly problem. That should not disuade you from going green because you already have hose connections that could fail, but haven't right? So, we're talking about only two more which I'm sure you can handle!