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    Gas Vent Pipe

    Gas vent pipe is an integral part of the function and venting of a gas appliance. Getting the right gas vent pipe for your appliance is as important as the appliance itself. We offer every variety, every size, and every style of gas vent pipe and gas vent pipe components to make sure you get exactly what you need for your appliance and your home at a price that can't be beat.

    Direct Vent Chimney Pipe Installation Guide

    Type B Vent Pipe Installation Guides

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    By Jim from Bastrop, Tx on March 1, 2013
    Is there any cover or damper for a direct vent that goes through the wall when not in use?
    By Collin C. - NFI Master Hearth Professional on March 1, 2013

    Direct vent fireplace venting systems remain open to the outdoors at all times. This is also the case with B-vent fireplaces. Most units have a built in draft diverter that is designed to eliminate cold back drafts into the unit.

    By Rodeny from Hurlock, MD on September 21, 2013
    I am replacing a direct vent propane fireplace with an Empire propane direct vent unit that uses a 4 inch inner double wall exhaust pipe. There is a roof truss above the unit. I need to offset the exhaust 2 inches to miss the roof truss. Is there flexible double wall pipe I can use?
    By Tyler M. - NFI Certified Specialist on September 23, 2013

    Yes, Empire does make flexible vent kits for its direct vent gas fireplaces. If you want a full quote, please reply with the model number of the fireplace that interests you most. Also, please advise how much pipe you need to get to your roof, as well as your roof's pitch measurement, and we can provide a quote.

    By Bill from Seattle on January 21, 2013
    I need an adapter that increases from a 4 x 6 5/8 direct vent pipe to a 5 x 8 direct vent pipe.
    By Tyler M. - Fireplace Specialist on January 21, 2013

    We do not offer a stock piece that makes this conversion, but if you reply with your fireplace model and piping information, we will be happy to research available options for this purpose, if applicable.

    By Kevin from Dallas, TX on October 29, 2015
    For your Vantage Hearth SUP-BRT4536TMN gas unit, or similar unit, I need to offset below the ceiling level. What is the minimum distance above the vent collar that can I offset the Type B vent and maintain proper performance and venting?
    By Chris C. on October 29, 2015

    This model will utilize a 13.5" transition collar right off of the top of the unit before the connection to a 6" B Vent system is made. I would suggest at least a 3' rise from the top of the fireplace before any offset is made.

    By James from Denver, CO on October 26, 2013
    Could I convert an old wood burning stove into a gas log burning stove?
    By Kevin E. - NFI Certified Specialist on October 27, 2013

    This sort of renovation is a bit unorthodox. However, we have had a few customers perform this modification successfully. Is your stove a full bodied cast iron appliance? A hole will need to be drilled through the body of the stove for the gas line. Also, the door of the stove will need to be removed for fixed permanently fully open to provide for adequate combustion air the log set. To properly size a log set to your stove, full interior dimensions are required. These include front width, rear width, depth and height.

    By Peter from Strafford, Vermont on October 26, 2013
    Can I use regular galvanized 4" stove pipe inside of a regular 6" stove pipe for a propane direct vent gas log stove, with the joints and seams sealed with furnace cement? It is a straight 14' vertical chimney.
    By Collin C. - NFI Master Hearth Professional on October 28, 2013

    That will depend upon the manufacturer of the stove. It is not a problem to use the galvanized pipe on the outer wall in most cases, but the diameter is important. Some stoves have a low enough condensing point that the galvanized pipe cannot be used on the inner wall, as the galvanization will be rapidly compromised by the constant presence of moisture. B-vent piping usually can be used in this case. I recommend checking the owner's manual for the stove to be certain of what is acceptable.

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