Questions tagged [b-vent]
The b-vent tag has no usage guidance.
2
questions
2
votes
1answer
231 views
how much 3 inch B-vent (double wall) for water heater can be above the roof?
The natural gas venting tables talk about lateral versus vertical rise and pipe diameter, plus the 2 and 10 ft rule for height above the roofline and outdoor vertical walls but they never mention how ...
1
vote
2answers
93 views
Serious corrosion of vent connector duct in gas hot water system
I have a combined radiant heating system/domestic hot water system. This unit is a middle efficiency unit rated at 87% The boiler is connected to a B-vent chimney with single wall vent connector. ...
