DuraVent DirectVent Pro Vinyl Siding Standoff Box: one assembled box for round, sconce, and H2 wall caps
The DuraVent DirectVent Pro Vinyl Siding Standoff Box is a heat shield that sits behind a vent cap on your outside wall. It comes assembled for round, sconce, and H2 caps. The 11 by 11 inch box works with either DirectVent Pro pipe size. It attaches to the wall or directly to the wall thimble plate, the plate around the vent opening. The screw heads stay hidden, and you can paint the box. DirectVent Pro is DuraVent’s pipe inside a pipe vent for direct vent gas fireplaces and stoves: exhaust goes out through the inner pipe and outside air comes in through the outer pipe.
The box spaces the hot cap away from vinyl siding to help keep it from melting or losing its shape. It also provides a level mounting surface over shingles or lap siding. For stucco, a counter flashing serves that purpose and lets the stucco meet its edge. DuraVent recommends this box first for the H2 cap. It cannot be used with a snorkel cap. Prefer separate pieces? See the DuraVent DirectVent Pro Vinyl Siding Standoff Kit Small four piece kit. The DuraVent DirectVent Pro Vinyl Siding Standoff Box ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.

















































