Desa (V)gM42h, (V)gM50h Optional Gas Line Installation, Chase installations, Foot rule

Venting Installation

Continued

Chase installations

Instructions for chase installations are included with the chase style termination chosen. In a multiple chase installation, be sure to provide adequate distance between terminations to prevent smoke spillage from one termination to another. We suggest that terminations be separated at least 24" center to center and stacked at a vertical height difference of 18" (see Figure 16).

Note: If a decorative shroud is to be installed, contact the manufacturer for specifications.

18"

Min.

Typ.

24" Min.

24" Min.

Figure 16 - Multiple Chase Installation

10 foot rule

All flue gas outlet chimney terminations must extend a minimum of 3 feet in height above the highest point where it passes through the roof and must be at least 2 feet above the highest point of the roof that is within a horizontal distance of 10 feet (see Figure 17).

10'	Level of
	Flue Gas
	Outlet
	10'
2' Min.	3' Min.
	2' Min.	3' Min.

Figure 17 - 10 Foot Rule

finishing the fireplace

Combustible materials, such as wallboard, gypsum board, sheet rock, drywall, plywood, etc. may make direct contact with sides and top around the fireplace face. It is important that combustible materials do not overlap the face itself. Brick, glass, tile or other noncombustible materials may overlap the front face provided they do not obstruct essential open- ings like louvered slots or any other opening. When overlapping with a noncombustible facing material, use only noncombustible mortar or adhesive.

Optional Gas Line

Installation

Gas line hook up should be done by your supplier or a qualified service person.

Note: Before you proceed, make sure your gas supply is turned off.

Use only a 1/2" black iron pipe and appropriate fittings.

1.Remove knockout indentation on refractory or firebrick wall located above the refractory hearth floor. The knockout indentation must be firmly tapped with any solid object such as a 1/2" dowel until it is released. Remove fragmented portions of refractory (see Figure 18, page 13).

2.Remove gas line cover plate located on either side of fireplace and pull out insulation from gas line conduit sleeve. Save insulation for reuse. Replace screws.

3.Run a 1/2" black iron gas line into the fireplace through the rear at gas line conduit sleeve (if using a raised platform, add height). Provide sufficient gas line into fireplace chamber for fitting connection (see Figure 19, page 13). Note: Secure incoming gas line to wood framing to provide rigidity for threaded end.

4.Repack insulation around gas line and into sleeve opening. Seal any gaps between gas line and refractory knockout hole with refractory ce- ment or commercial furnace cement, Install the gas appliance or cap-off gas line if desired.

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