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SonshineTN Member Posts: 1
I purchased a building built in 1927. The coal furnace was replaced with an oil furnace in 2005. The oil furnace uses the original chimney which is huge (3'X3'). We are converting this building to a dinner theatre and the chimney is off center at the front of the new stage area. We would like to knock down the chimney and install a vent at the wall (which is about 5' from the chimney). I have 28' (7 of 48" each) Direct Vent System Component DV-48D double wall pipe. It says "For use on direct vent gas appliances. Not for use with solid fuel." Can I use that for the venting of the oil furnace? Thanks!


  • Fred
    Fred Member Posts: 8,518
    Get a professional HVAC Technician in there. Many furnaces can't be converted to direct venting.
  • Steamhead
    Steamhead Member Posts: 15,350
    @SonshineTN , furnace or boiler?

    Is that venting material "B" or "L" vent, or something else?

    Where are you located?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • GW
    GW Member Posts: 4,544
    that's a tough one---kinda like asking 'how do i buy a gun and learn self defense' on the net. it seems like you have B vent, which is only good for gas appliances. So, 'no' would be the quick answer. You also need a power venter.

    If you're gonna take your safety into your own hands that's one thing, but you kinda need a pro if you have guests and such
    Gary Wilson
    Wilson Services, Inc
    Northampton, MA
    [email protected]
    JUGHNE Member Posts: 9,770
    Furnace with duct work or boiler with radiators?
    Could you switch to gas?
  • STEVEusaPA
    STEVEusaPA Member Posts: 5,695
    Get a pro to see if it can be safely power vented
  • Bob Harper
    Bob Harper Member Posts: 914
    This pipe is designed for use with gas direct vent fireplaces. It is NOT suitable for oil fired equipment. It is for GAS equipment only and then, only direct vent gas appliances such as fireplaces and stoves. Oil would eat up that aluminum inner liner in no time not to mention the termination. Use type 'L' vent for oil. As Steve said, consider power venting if you can get it to a sidewall.
    HVACNUT Member Posts: 4,597
    What size furnace are we talking about?
    @SonshineTN ?
    EBEBRATT-Ed Member Posts: 12,024
    @Bob Harper
    Can't vent an oil boiler wit flue pipe certifide for gas
    Bob Harper