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Direct Vent, Gas Cast Iron Boiler

How does the Weil McLain GV-90 differ from the GV-90+ on the current Weil McLain webpage?

Also, how does the Weil McLain GV90 compare with other brands regarding longevity, maintenance/repairs, customer satisfaction, costs and adequate heat/hot water when used with an indirect tank?

Comments

  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,354
    Not sure of differences, tech support at WM will fill you in. WM is one of the great American Boiler companies. You cannot go wrong...and I'm generally a Burnham Man.  Mad Dog 🐕 
  • Big Ed_4
    Big Ed_4 Member Posts: 2,891
    edited October 2023
    20 to 30 years you may develop a O ring leak ... And at least one vent fan replaced.

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  • SunshineAM
    SunshineAM Member Posts: 2
    We were told by a potential installer that they stopped using Weil McLain high efficiency boilers due to numerous problems, although the problems weren’t identified. Would appreciate knowing if others have had similar firsthand problems with direct vent, cast iron high efficiency boilers, especially Weil McLain?