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Q&A L-vent and A Vent- What's the difference?

Post in 'Questions and Answers' started by QandA, Oct 5, 2001.

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  1. QandA

    QandA New Member Staff Member

    Nov 27, 2012

    I recently came across these terms regarding oil stoves: A vent and L vent. My search revealed nothing. Can you explain them?


    L-Vent is for Pellet Stoves and certain oil burners while a Class A chimney can server higher temp appliances like woodstoves, coalstoves, etc. (in addition to oil, gas or pellet.) Class A chimney can be a lined masonry chimney or a metal one, while class L is metal only.

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