Irving Oil
If installing a snorkel a minimum 24” vertical rise is necessary. The maximum horizontal run with the 24” vertical pipe is 36” (915 mm). This measurement is taken from the collar of the fireplace to the face of the exterior wall. See the Vent Chart on page 11 for extended horizontal run if the vertical rise exceeds 24”.
1. | Establish vent hole through the wall (Fig. 17). |
2. | Remove soil to a depth of approximately 16" |
| (406mm) below base of snorkel. Install drain pipe. |
| Install window well (not supplied). Refill hole with |
| 12" (305mm) of coarse gravel leaving a clearance |
| of approximately 4" (100mm) below snorkel (Fig. |
| 24). |
3. | Install vent system. |
FOUNDATION
RECESS
WATERTIGHT
SEAL
AROUND
PIPE
SNORKEL
WALL
SCREWS
SHEET METAL |
|
SCREWS | Fig. 25 |
|
4. | Ensure a watertight seal is made around the vent |
| pipe coming through the wall. |
5. | Apply high temperature sealant caulking (supplied) |
| around the 4” and 7 “ snorkel collars. |
6. | Slide the snorkel into the vent pipes and secure to |
| the wall. |
7. | Level the soil to maintain a 4" (100mm) clearance |
| below snorkel (Fig. 24). |
VERTICAL THROUGH-THE-ROOF
APPLICATIONS
|
| MAXIMUM |
|
| 10 FT |
MINIMUM | (305cm) | |
FIRESTOP
7" PIPE
24"/608mm
MINIMUM*
SNORKEL
SCREWS
4" CLEARANCE
GROUND
WINDOW WELL
GRAVEL
DRAIN
FOUNDATION WALL
*A minimum of 24"/608mm vertical pipe must be installed when using the snorkel kit.
*The 22" vertical rise (center to center) of the snorkel may be included for calculation of max. horizontal run.
7.5FT./
MAXIMUM 40 FT.
VERTICAL
RISE
PIPE STRAPS
EVERY 3’
(92cm)
Fig. 26
This Gas Fireplace has been approved for,
• Vertical installations up to 40’ (12m) in height. Up |
to a 10’ horizontal vent run can be installed within |
the vent system using a maximum of two 90° |
Fig. 24
Do not back fill around snorkel. A clearance of at least 4” must be main- tained between snorkel and the soil.
If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fasten brackets to wall first, then secure to snorkel with self drilling #8 x 1/2 sheet metal screws. It will be necessary to extend vent pipes out as far as protruding wall face (Fig. 25).
14
elbows (Fig. 26). |
• Up to two 45° elbows may be used within the |
horizontal run. For each 45° elbow used on the |
horizontal level the maximum horizontal length |
must be reduced by 18”. |
Example: Maximum horizontal length
0 | x | 45° elbows | = | 10’ |
1 | x | 45° elbows | = | 8.5’ |
2 | x | 45° elbows | = | 7’ |
•A minimum of an 8’ vertical rise.
•Two sets of 45° elbows offsets within these vertical
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