Just wondering if anyone out there knows if Duravent Pellet Vent Pro (or similar) make a horizontal wall thimble for a 4 inch exhaust and 3 inch fresh air intake combined like part # 4PVP-WTI. The problem with 4PVP-WTI is that it's only a 2 inch fresh air intake. Calls to Duravent not returned as yet.
Any help is appreciated.
Mike -