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Kettling & Percolation Burnham NG Boiler

Docfletcher Member Posts: 487
edited September 2023 in Gas Heating
My Sister's boiler. new boiler is on the way. My question is would the clogged heat exc hanger also cause short cycling? My thoughts are yes because the heat exchanger would not be able to dissipate the heat as it should. Please shed some light on the matter. Thanks


  • Jamie Hall
    Jamie Hall Member Posts: 23,668
    It might, depending on where the boiler temperature sensor is.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Steamhead
    Steamhead Member Posts: 17,011
    Is this a steam or hot-water system?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • Docfletcher
    Docfletcher Member Posts: 487
    Hot water baseboard
  • Docfletcher
    Docfletcher Member Posts: 487
    I would have tried to clean it, but I think it might leak if I do.
  • hot_rod
    hot_rod Member Posts: 22,498
    Clogged or even a heavy scale from hard water will cause that noise
    Also efficiency takes a hit and short cycling can be a symptom

    How us the boiler sized to the radiators attached. Oversizing is a common occurrence in those order systems
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Mad Dog_2
    Mad Dog_2 Member Posts: 7,255
    I like that word, "kettling"   is that A British term?  Mad Dog 🐕 
  • Docfletcher
    Docfletcher Member Posts: 487
    Well, as it turns out they decided not to get the new boiler. They are running the old one for the season. My thoughts were for replacement as it is from 1993. They don't have hard water but they had several insidious leaks that were neglected for years. I got the leaks fixed, and replaced the expansion tank that had a hole in it's side.

    Baseboard, and somewhat oversized.