National

Most factory built fireplace manufacturers require replacement of refractory panels when a dime can be inserted into the crack or when the surface of the refractory panel has abraded more than 1/4"...

Use to maintain a weather tight resistant seal between the pipe and the flashing. Seal inner edge with hi-temp silicone sealant.Additional B-Vent Info:DuraVent's Type B Gas Vent system features the...