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vent replacement

Dan_43
Dan_43 Member Posts: 57
in THE MAIN WALL
I have just installed a IN-7 gas fired standing pilot-low water prob boiler. The house is a 1 pipe system. I still have all the old vents on the system. The vents are Hoffman #2 vacuum type. and the mains are Hoffman#16 vacuum vents.
All radiators are getting hot, and the system is quiet. I keep the old pressure gage which reads vacuum. On a cool down cycle I can read (-6 to -8)lbs of pressure (vacuum), the PressureTrol is set at 2 lb /1.5 lb. Is this the most efficient system to operate the new boiler on?

Comments

  • Dave_4
    Dave_4 Member Posts: 1,404
    The 2 PSI is a tad high,

    and that particular system cries out for a vaporstat.

    The new model Honeywell has (I forget the exact model number) would be the match made in heaven, control-wise for you.

    Your system is designed to run at one PSI tops! I would suggest getting into the 1-PSI mode ASAP. The existing controller is going to cost fuel-wise - what the correct vaporstat will save in a year or less.

    I urge you to make the change while it's straight forward, and little is rusted "tight."

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  • Dan_43
    Dan_43 Member Posts: 57


    What do you think about the vacuum vents? How do they play into the vaporstat?
    Dan
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