RDV4136 Series Direct Vent Gas Fireplace
Zero Clearance Sleeve 
(if required)
Firestop
7” Pipe
24” (610mm) Minimum*
Screws
7TDVSNORK
(Snorkel)
4” (102mm) Clearance Min.
Window
Well
Gravel
Drain
Foundation Wall
*A minimum of 24” (610mm) ver- tical pipe must be installed when using the 7TDVSNORK Kit.
*The 22” (559mm) vertical rise (center to center) of the snorkel may be included for calculationof max. horizontal run.
Max. Height
40' (12m)
Min. Height 7���' (2.3m)
Max. 10' (3m)
Pipe Straps Every 3’ (914mm)
BG402
Fig. 29 Below grade installation.
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. 30)
| Snorkel | |
Foundation Recess | Wall Screws | |
| ||
Recess Brackets |
| |
Watertight Seal | Sheet Metal | |
Screws | ||
Around Pipe | ||
|
BG401
Fig. 30 Snorkel installation, recessed foundation.
Vertical Through-the-Roof Applications
This Gas Fireplace has been approved for:
•Vertical installations up to 40’ (12 m) in height. Up to a 10’ (3 m) horizontal vent run can be installed within the vent system using a maximum of two 90° elbows. (Fig. 31)
18
FP1244
Fig. 31 Support straps for horizontal runs.
•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” (457 mm).
Example: Maximum horizontal length 0 x 45° elbows = 10’ (3 m)
1 x 45° elbows = 8¹⁄₂’ (2.6 m)
2 x 45° elbows = 7’ (2.1 m)
•A minimum of an 8’ (2.4 m) vertical rise.
•Two sets of 45° elbows offsets within these vertical installations. From 0 to a maximum of 8’ (2.4 m) of vent pipe can be used between elbows. (Fig. 32)
•7DVCS must be used to support offsets. (Fig. 34) This application will require that you first determine the roof pitch and use the appropriate starter kit. (Refer to Venting Components List)
•The minimum height of the vent above the highest point of penetration through the roof is 2’ (610 mm). (Fig. 36)
Vertical Through-the-Roof Installation
1. Locate your fireplace.
2. Plumb to center of the (4” (102 mm) flue collar from ceiling above and mark position.
3. Cut opening equal to 9³⁄₈” x 9³⁄₈” (240 x 240 mm).
4. Proceed to plumb for additional openings through the roof. In all cases, the opening must provide a minimum of 1” (25 mm) clearance to the vent pipe, i.e., the hole must be at least 9³⁄₈” x 9³⁄₈” (240 x 240
mm).
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