Advise boiler choices, please

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Ted_9
Ted_9 Posts: 1,718
in THE MAIN WALL
Munchkin T50M or the Contender MC50. Off the top of my head, those two boiler has the lowest BTU input.

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  • Gene Davis_3
    Gene Davis_3 Posts: 51


    For a small new house, heat loss calcs only show something like 40KBth/h at design temp of -30F. Boiler will heat water for in-slab PEX on lower floor, higher temp rads on main floor. Plus DHW with a 45g. Sup-R-Stor.

    He is gettig a Trinity 150 pushed at him by local supply, but I think it is too big and will short cycle. I think he needs something in the 50-60 range with a good turndown.

    Please suggest other options.
  • Gene Davis_3
    Gene Davis_3 Posts: 51


    That is what I am saying, but I don't have the creds to back it up.

    Can you offer reasons why choosing a boiler with too much capacity, such as the Trinity 150, is a bad idea?
  • Ted_9
    Ted_9 Posts: 1,718
    Well

    It's bad because it will short cycle and waste fuel.

    I for got to mention that there are other manufacturers that make boilers in the low BTU input range.
  • Steamhead (in transit)
    Steamhead (in transit) Posts: 6,689
    If they keep pushing that oversized boiler

    find someone else to deal with.



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