What is a Type B Gas vent?
It’s name comes from the use of class B parts (masonry chimneys are class A).
The B-Vent is an air insulated venting system that is used for gas burning appliances
- hot water heaters
- furnace flues.
B-vents require special gas-only chimney that terminates above the roof.
Can a B-vent be insulated?
No. The vent requires a minimum of one-inch clearance to all combustible material.
What causes noisy B-vents?
Vibrations caused by the movement of parts in the system. When installed properly, the B-vent is designed to quietlyhandle expansion and contraction.
Should my B-vent be replaced when re-doing my roof?
We will inspect the 3 critical parts of the B-vent;
- CAP
- STORM COLLAR
- BASE FLASHING
Depending on age and condition, a B-vent may only need re-sealed or possibly only need certain parts.
Can you paint my B-vent?
Yes. Because heated air is vented through a B-vent, high heat paint should be applied. One spray can is sufficient to cover the average vent with one coat. Spray paint designed for grills and car engines offer ideal protection.