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Correct size & Brand Boiler

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sioux
sioux Member Posts: 4
in Gas Heating
I need to replace my old gas boiler. I live in Massachusetts. I have gotten some quotes. The 3 brands suggested are Viessmann, Lochinvar and Weil-McClain. Only one company has done a heat loss calculation. I have ‘a lot’ of windows. It has always been a room that is hard to heat. I want to get the correct size boiler. Any suggestions would be much appreciated.

Thanks
Sioux

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  • Jamie Hall
    Jamie Hall Member Posts: 23,322
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    You absolutely have to have a heat loss calculation. Trying to size or replace a boiler without one is just a guess.

    Further, it is best to do a room by room heat loss calculation. That way, if there is a space which is harder to heat, a good contractor can figure out how to get more heat to it (there are lots of options for that).

    All three boiler brands are fine. It's all about the installation. A good installation will make any of them work well. A poor or cheap installation and none of them will.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • JohnNY
    JohnNY Member Posts: 3,230
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    A modulating boiler will fire to the heat loss of the building envelope.
    Contact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
    Consulting & Troubleshooting
    Heating in NYC or NJ.
    Classes

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