Installation for horizontal termination

Venting Installation

Instructions

Continued

For Vertical Termination: Measure the distance from the fireplace flue outlet to the ceiling. Add the ceiling thickness, the vertical rise in an attic or second story, and allow for sufficient vent height above the roof line. You may use one or two 90° elbows in this vent configuration. See Vertical Termination Configurations on page 16.

Note: You may use two 45° elbows in place of a 90° elbow. You must follow rise to run ratios when using 45° elbows.

For two-story applications, firestops are required at each floor level. If an offset is needed in the attic, additional pipe and elbows will be required.

You may use a chase with a vent termination with exposed pipe on the exterior of the house. See Installing Vent System in a Chase.

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 one (1) foot of vertical rise for every three (3) feet of horizontal run. The maximum horizontal run is 20' with 8' vertical rise (see Installation for Horizontal Termination). The maximum vertical run is 30' (see Installation for Vertical Termination, page 16).

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 7) install the vent system by following the installa- tion instructions.

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 15 and 16). Snorkel kits are available for rigid pipe applications only to provide a 14" rise and a 36" rise (see page 19). 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 16). Do not back fill around the snorkel termination.

Snorkel

90º

1' Minimum 12" Minimum