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  1. #1

    "Furnace" and "Boiler"

    What is the difference between a "furnace" and a "boiler"? If natural gas is used to heat water that is then pumped to radiators, is the heater a furnace or a boiler?

  2. #2
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    If you water it is a boiler, if you heat air it is a furnace.
    Karst means cave. So, I search for caves.

  3. #3
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    yeah, what he said
    R2B4BTU

  4. #4
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    Quote Originally Posted by karsthuntr View Post
    If you water it is a boiler, if you heat air it is a furnace.

    What about a boiler that feeds a coil in an airhandler???

  5. #5
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    Ah, now you're just making things complicated!

    I used to get calls all the time "my furnace quit" I'd get there to find a boiler. Me not being a boiler guy, would sadly have to inform them someone else would be back to fix it. lol
    "If you call that hard work, a koala’s life would look heroic."

  6. #6
    A boiler is a type of furnace that heats up water.
    But a boiler is not always a furnace, like on a steamship.
    So you can call the boiler a furnace but you can't always call a furnace a boiler.
    A water heater is a boiler but not a furnace.
    Understand???

    Good, cause I don't.
    Hey cockroach, don't bug me! ©

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    Bring Em Home....

  7. #7
    Join Date
    Nov 2003
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    Boston
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    A Boiler does not "boil air",
    nor does a furnace "furn water"

    Does a hot water heater heat hot or cold water?
    Edited by powerhead on more than one occasion

  8. #8
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    May 2000
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    Quote Originally Posted by powerhead View Post
    A Boiler does not "boil air",
    nor does a furnace "furn water"

    Does a hot water heater heat hot or cold water?

    Does it boil er?
    Does it furn yer ace?
    Cool.
    My doctor gave me six months to live, but when I couldn't pay the bill he gave me six months more.
    Walter Matthau

  9. #9
    Join Date
    May 2001
    Location
    Bennington, Vermont U.S.A.
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    Water = boiler
    steam = boiler
    Air = furnace.

    A hydro-air handler is neither a boiler or a furnace. It is a secondary heat exhanger.

  10. #10
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    New Hampshire
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    Too add to the confusion

    On large boilers, the part that contains the fire is called the furnace, so a furnace can be part of a boiler, too.

    Noel

  11. #11
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    Quote Originally Posted by Noel Murdough View Post
    On large boilers, the part that contains the fire is called the furnace, so a furnace can be part of a boiler, too.

    Noel

    I had an employee call that part the "Jew Burner". I had to ask him to stop that crap.
    My doctor gave me six months to live, but when I couldn't pay the bill he gave me six months more.
    Walter Matthau

  12. #12
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    Quote Originally Posted by Gene TBD View Post
    What is the difference between a "furnace" and a "boiler"? If natural gas is used to heat water that is then pumped to radiators, is the heater a furnace or a boiler?

    Foilernace
    It's Time To Be Nice To People

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