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needing 100,000 btu 90+ boiler with 2" vent

Jim_115
Jim_115 Member Posts: 4
in THE MAIN WALL
I'm needing to replace a Hydro Pluse boiler with 2" venting and it would be very difficult to install 3" venting.
Is there a 90+ boiler out there that uses 2" venting instead of 3"? It would have about 50ft total of intake and exhaust piping.
Thanks

Comments

  • Ironman
    Ironman Member Posts: 7,633
    The Bosch Greenstar. It comes with 3" connections, but 2" can be used up to a certain length.

    Download the manual and look on page 44 for the venting tables.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    Jim_115
  • Zman
    Zman Member Posts: 7,611
    The triangle tube prestige 110 will work for short distances.
    Check the vent supplement.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
    Jim_115BobbyBoy
  • Snowmelt
    Snowmelt Member Posts: 1,428
    Utica wall hung, or the naviEn combo.
  • Jim_115
    Jim_115 Member Posts: 4

    Thanks guys! Looks like either one would work I'll have to get the exact measurement to know for sure.
  • hot_rod
    hot_rod Member Posts: 24,117
    I think there was a time when you could use both 2" as exhaust, with combustion air from inside. Didn't the HTP Munchkin offer that venting option? Had to be solid core PVC, of course.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • RobG
    RobG Member Posts: 1,850
    Are you sure that you need a 100K boiler? Has a heatloss of the structure been done? In the early days of high efficiency the 100k pulse was one of a very few HE boilers out there. Chances are it is oversized.

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