InstallationQuestion 25 of 110
Type B gas vent is designed to vent the products of combustion from which appliances?
a.Oil-fired only
b.Listed gas appliances with draft hoods or Category I equipment
c.Solid-fuel wood stoves
d.High-temperature incinerators
Explanation
Type B vent is a double-wall metal vent listed for venting listed gas appliances that produce relatively low-temperature, non-condensing flue gases, such as Category I furnaces. It must not be used with appliances that produce condensing or high-temperature flue products. Proper vent selection is required by the CMC.
Law Reference: 2022 California Mechanical Code (CMC)Practice all 110 questions free — no signup required.
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