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positive pressure boiler

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Bob Forand
Bob Forand Member Posts: 305
in THE MAIN WALL
What does it mean " positive pressure boiler " ? What advantage would this have besides not needing a draft regulator ? Is there a purchasing advantage ?

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  • Bob Forand
    Bob Forand Member Posts: 305
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    Can you tell me in Leighmans terms...

    What does the term " positive pressure boiler " mean ? What would be a purchasing advantage over any other boiler ? I am trying to understand the whole picture so any help would be greatly appreciated.
  • Maine Ken
    Maine Ken Member Posts: 531
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    Positive pressure over fire as opposed to negative. Benefits are up to the installation and use.
  • Dale
    Dale Member Posts: 1,317
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    Sealed

    The entire combustion area has a nice tight seal and has a pressure higher than atmospheric ( basement). With a pressurized boiler the manufacturer can get a more consistent fire pattern if all else is correct, meaning the door and burner gasketing and the burner setup. The multi pass scotch marine types get alot of heat transfer for a small space. The Crown Freeport is in my opinion a nice reasonably priced example.
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