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New Weil-mclain

AFred
AFred Member Posts: 81
in THE MAIN WALL
Has anyone installed any of those new GV90+?

I think I like them already! They still want P/S piping.

I just want to hear others thoughts.

-Andy

Comments

  • Robert O'Brien
    Robert O'Brien Member Posts: 3,483
    They have

    a primary pump as well as an injection pump to protect the CI boiler already installed. You can pump through them in certain applications. Why not just use a real condensing boiler?
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  • Steamhead
    Steamhead Member Posts: 15,990
    The GV90+

    IS a real condensing boiler. It uses a stainless-steel recuperator to condense, and the main HX is cast-iron.



    Trouble is, they do not list any non-PVC venting options in the I&O manual for that unit.
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Tim McElwain
    Tim McElwain Member Posts: 4,588
    The GV 90 is still the same

    Gold Series 4 with the recuperator added to get a higher efficiency. All the controls are the same as on the original Gold Series. They require AL294C venting.
    Greggorylane
  • Robert O'Brien
    Robert O'Brien Member Posts: 3,483
    edited July 2011
    I'll redefine "real"

    A purpose built modulating/condensing boiler with integral ODR
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  • Terry O
    Terry O Member Posts: 67
    GV90+ venting

    The GV90+ can be vented with PVC. Link below for manual. See pgs 32 and 33 for info.



    http://www.weil-mclain.com/en/multimedia-library/pdf/weil-mclain-pdf/products/boilers/gas-boilers/gvplus/gvplus_boiler_manual.pdf
    Terry O
  • Tim McElwain
    Tim McElwain Member Posts: 4,588
    You are correct Terry

    I had not had a chance to retract my AL29$C statement. I read the manual and yes PVC is listed.
  • Steamhead
    Steamhead Member Posts: 15,990
    The SS venting method

    looks like an afterthought in this manual. All of the diagrams show PVC venting- not too encouraging to those of us who are wary of PVC for venting. 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
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