| Desa DVF36CR, DVF36TCL, DVF36TCR, DVF36TCL, DVF36TCRP, DVF36TCLP

Venting Installation

instructions

Continued

Your DESA direct-vent fireplace has been tested for a minimum 3' rise with a maximum 11" wall thickness. Any horizontal application longer than 12" must provide a minimum of 1 foot of vertical rise for every 3 feet of horizontal run. The maximum horizontal run is 20' with 8' vertical rise (see Instal- lation for Horizontal Termination). The maximum vertical run is 30' (see Installation for Vertical Termination, page 114).

Installing Vent System in a Chase

A chase is a vertical box-like structure built to enclose venting that runs along the outside of a building.

NOTICE: Treatment of firestops and construction of the chase may vary from building type to building type. These instruc- tions are not substitutes for the requirements of local building codes. You must follow all local building codes.

Note: When installing in a chase, you should insulate the chase as you would the outside walls of your home. This is especially important in cold climates. Minimum clearance between vent pipes and combustible materials such as insula- tion is 1".

After framing the chase (see Framing on page 6) install the vent system by following the installa- tion instructions.

installation for horizontal termination

1.Determine the route your horizontal venting will take. Note: The location of the horizontal vent termination on the exterior wall must meet all local and national building codes and must not be blocked or obstructed.

WARNING: Do not recess vent terminal into a wall or sid- ing. This is a fire hazard.

Snorkel terminations are available for termina- tions requiring a vertical rise on the exterior of the building (see Figures 12 and 13). Snorkel kits are available for rigid pipe applications only to provide a 14" rise and a 36" rise (see page 17). Follow the same installation proce- dures used for standard horizontal terminations. If installing the snorkel termination to raise the vent termination from below grade level such as in a basement installation, you must provide proper drainage to prevent water from entering the snorkel termination (see Figure 13). Do not back fill around the snorkel termination.

2.Rigid vent pipes and fittings have special twist-lock connections. Assemble the desired combination of pipe and elbows to the appli- ance adaptor with pipe seams oriented towards the wall or floor.