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Munchkin Vision 1 Heating/DHW piping

Cliff Brady
Cliff Brady Member Posts: 149
in THE MAIN WALL
With all the talk of pumping into the boiler on Munchkins, I am curious why the Vision 1 piping diagrams have the heating pump P1 pumping into the boiler while the DHW pump
P2 pumps away from the boiler and into indirect tank?

Any comments?

Comments

  • leo g_13
    leo g_13 Member Posts: 435
    i would venture

    to guess that you usually need around 10 GPM through the DHWT heat-x and there is very little friction loss as the piping is usually 1" or larger. so the DHW circ is pushing enough flow through the munchie heat-x.

    leo g

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  • jw
    jw Member Posts: 62
    From experience

    I would not use the combi cor water heater with the schematic as shown. combi's have a way too high head loss. Plumber has one with a 140 and combi and even using a 0013 pump it will not move enough water to keep the 140 from complaining.
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