The Recessed Dryer Vent Box a.k.a. The Dryerbox offers the architect tremendous value. It provides a UL Through Penetration Firestop System receptacle in the wall to house the dryer flex transition hose. This allows both the washer and dryer appliances to be moved back an extra 4 or more inches which in turn provides close to two extra square feet of living area and maybe solving a wall layout problem. It is simple to specify, available from more than 1,900 wholesale suppliers throughout North America and will impress your client with your conscious effort to innovate and save them money and space.
The product is commonly referred to as the Dryerbox by In-O-Vate Technologies, Inc., under part numbers of DB-480, DB-425, DB-350, DB-4D and DB-3D. The 425 refers to our most popular model measuring 4 1/4" deep (nailing flange to rear of box). 350 is 3 1/2" deep but exhibits a "squished" or oval hole (port) to accommodate the squished 4" rigid pipe. We recommend the DB-425 for upward exhaust direction and the DB-4D for going down.
When used in conjunction with the new, more efficient Dryer-Ell, you may take full advantage of the code-allowable run length with zero fitting penalties. Specs Written by ARCAT: Master Format 95 || Master Format 04
The Dryerbox provides some interesting advantages. Besides the many obvious benefits, the receptacle is a sensible change to the dangerous and inefficient way dryers have been exhausted for decades. The heavy molded steel construction often exceeds code requirements for air distribution components, and creates a cleaner more professional finish. Below are some letters that may be useful in permit preparation or "red-tag" challenges.
The Dryerbox carries the UL Classification mark. Click here for listing details.
Note: The heavy 22 gauge molded steel construction exhibits similar characteristics of other sheet metal products common to the HVA/C industry and hence is generally acceptable by the governing code commissions in the mechanical code section. In some municipalities, the Dryerbox is code.
Due to the product's obvious ability to reduce the fire hazard by eliminating the potential of the flex hose from getting "kinked" or crushed, thereby improving efficiency, the Dryerbox is well-received by Building and Mechanical inspectors.