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dunkirk q-90

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Massplumber
Massplumber Member Posts: 8
in THE MAIN WALL
Could anyone see a problem w/pulling the make-up air from inside the building for a dunkirk quantum 90 (100k btu's). Had a real tough time just going threw the foundation for the exaust. Basement is old & large (plenty of air).

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  • keith
    keith Member Posts: 224
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    combustion air

    I am not familiar with the Dunkirk you are installing, but I ran into a problem with a direct vent Burnham LE boiler by not bringing in out side air. When I went back and installed it properly according to the manufactorers guidelines every thing checked out. Dont forget the burner has a pre and post purge cycle which needs to be accounted for in your combustion air calcs.
  • peter desens
    peter desens Member Posts: 41
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    Q90 combustion air

    As difficult as it may be to punch through the outside wall, it is in fact required to draw combustion air in from the outdoors to insure a balanced flue system and proper operation of the boiler.

    Peter Desens
    Technical Service Manager
    ECR International - Dunkirk Boilers
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