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What do I need to add a heat exchanger to my existing forced air

john@TR
john@TR Member Posts: 26
in THE MAIN WALL
Do you mean you want to add a hydronic coil to a forced air furnace? Why would you want to do such a thing? Is it an air handler or a furnace? If it's a furnace it has a heat exchanger already and a combustion source so why connect a secondary system tied to a boiler?

Why didn't the heat exchanger come with the diagrams you want anyway?

Comments

  • Jay_31
    Jay_31 Member Posts: 1
    Diagrams

    What do I need to install a heatexchanger to my forced air furnace from an outdoor boiler. I have the heat exchanger i just need to know what materials and wiring diagrams to do so. Thank you
  • hr
    hr Member Posts: 6,106
    Most furnace manufactures

    oiffer cased coils that would fit on the furnace. if not Magic Air and First Co. are common brands.

    Some installers buy a slab coil and cut a track into the plenum near the furnace. The coil needs to be sized to the BTU load and air flow.

    Most OWF setups use an additional thermostat, generally to turn on a circ pump to the coil.

    As the coil heats up a fan switch would turn the furnace fan on.

    Seems all the OWF manufactures show how to plumb and wire this. Try their web sites for downloadable drawings.

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