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\"A\" Dimension

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Steamhead
Steamhead Member Posts: 18,209
in THE MAIN WALL
do you have now? Have you had trouble with water backing up into the mains? If the present "A" dimension works, you should be OK.

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  • Dick DeAngelis
    Dick DeAngelis Member Posts: 12
    \"A\" Dimension

    I have decided to replace my pre world war II boiler in my one pipe steam system. I think I have a pretty good heating man. However I am concerned about the "A" Dimension. I don't have enough head room in the basement from the water line to the Main to get the 28 inches that is necessary. Is their an alternative?

    Thanks
    ****
  • Jacob Myron_15
    Jacob Myron_15 Member Posts: 4
    A dimension

    You only need 28" if the boiler is over 100,000 BTUH output.

    Under 100,000 BTUH 14" will do fine.

    If the boiler is prewar2 your new boiler will a bit lower than the old one so you will gain some inches for the dimension A.

    Jake t
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