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Residential Water Tube Boilers

Tinman Member Posts: 2,808
I have absolutely nothing against these boilers. If you pipe them right and provide the necessary flow, they work great.

But I was wondering if anyone knew if any manufacturers considered going with a tube coil that’s larger?

I assume the downside to that would be less heat transfer? Larger boilers?
Steve Minnich


  • hot_rod
    hot_rod Member Posts: 21,846
    I know there are a handful of other water tube designs out there. here is a Viessmann and I think ECR style. Sermeta in the center.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Henry
    Henry Member Posts: 996
    HTP is using a new version of the Gianoni HX with larger passages. 400K to 2 million BTU.