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2 line system for 2 furnaces

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Dukeofoil
Dukeofoil Member Posts: 1
in Oil Heating
Can anyone help with a diagram of  how a dual furnace system with return lines should be plumbed. Check valve location...

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  • mattmia2
    mattmia2 Member Posts: 9,678
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    I assume you mean hydronic boiler? Primary-secondary or with a hydraulic isolator is by far the best way to do it.
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    I think he means oil lines.
    If so, no check valves by code. You can look in the Suntec manual for proper procedure.
    Better would be a competent tech who knows the proper way (code), has the tools and fittings.

    There was an error rendering this rich post.

    mattmia2

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