Venting Installation
Continued
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. |
|
|
Finishing 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 noncom- bustible materials may overlap the front face provided they do not obstruct essential openings like louvered slots or any other opening. When overlapping with a noncombustible facing material, use only noncombustible mortar or adhesive.
Figure 17 - 10 Foot Rule
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 refrac- tory or firebrick wall located above refrac- tory 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).
2.Remove gas line cover plate located on either side of fireplace and pull out insu- lation from gas line conduit sleeve. Save insulation for reuse. Replace screws.
3.Run a 1/2" black iron gas line into fire- place 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). 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 cement or commercial furnace cement, Install the gas appliance or cap off gas line if desired.
Outside of |
| Side | |
Fireplace |
| Firebrick | |
|
| Finished | |
Gas Line |
| Side | |
Remove |
| ||
Conduit | Knockout | 1/2" Dowel | |
Insulation |
| ||
|
| ||
Gas |
|
| |
Conduit |
|
| |
Cover |
| Refractory | |
|
| Knockout | |
|
| Plug | |
Figure 18 - Gas Line Knockout | |||
Outside of |
| Side | |
Fireplace |
| Firebrick | |
Gas | Incoming | Finished | |
Side | |||
Line | 1/2" Black | ||
| |||
Conduit | Iron Pipe |
| |
Seal 
Opening
Repack with
Insulation Refractory
Cement
Provide Enough Threaded
End for Fitting Connection
Figure 19 - Gas Line Installation
www.fmiproducts.com | 11 |