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Thread: Oil fired boiler

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  1. #1

    Default Oil fired boiler

    I am installing a small oil fired boiler Benjamin OB1000 90,000 btu in my shop. Is there any reason I shoudn't use the brand new type b vent pipe for the chimney that I have just sitting there??
    The manual says to use L type venting. Whats the differance between the two pipes.

  2. #2
    DIY Junior Member MAoilTech's Avatar
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    Nov 2009


    Follow your state and local Codes if it tells you to use type L use it there is a reason.
    Type L vents are suitable for use with gas or oil. They can be used instead of a B vent, but a B vent can't be used instead of an L vent. In most cases, L vents are used with oil. Again, this is typically a double wall vent with an air space between. The inner wall is typically stainless steel and the outer wall is galvanized. Type L vents normally see temperatures of under 750F. Type L vents are tested for up to 1,000F.
    Last edited by MAoilTech; 11-24-2009 at 09:49 PM. Reason: wording


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