LDVR Series Direct Vent Gas Fireplace
Zero Clearance Sleeve
(if required) Firestop
7” Pipe
24" (610mm)
Minimum*
7TDVSNORK
(Snorkel)
4” (102mm) Clearance Min.
Window 
Well
Gravel
Vertical Through-the-Roof Applications
This Gas Fireplace has been approved for:
1.Vertical installations up to 40ʼ (12 m) in height. Up to 10ʼ (3 m) horizontal vent run can be installed within the vent system using a maximum of three 90° elbows.
Maximum
Drain
Minimum
10ʼ (3 m)
Foundation Wall
*A minimum of 24” (608mm) vertical pipe must be installed when using 7TDVSNORK Kit.
BG400
8ʼ (2.4 m) / Maximum
40ʼ (12 m) Vertical
Rise
Pipe Straps Every 3ʼ (914 mm)
Fig. 31 Below grade installation.
Do not back fill around snorkel. A clearance of at least 4” (102mm) must be maintained between the snorkel and the soil.
| Snorkel |
Foundation Recess | Wall Screws |
| |
Recess Brackets |
|
Watertight Seal | Sheet Metal |
Around Pipe | |
| Screws |
BG401
Fig. 32 Snorkel installation, recessed foundation.
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. 32)
CFM148
Fig. 33 Support straps for horizontal runs.
This Gas Fireplace has been approved for:
1.Vertical installations up to 40ʼ (12 m) in height. Up to 10ʼ (3 m) horizontal vent run can be installed within the vent system using a maximum of three 90° elbows.
2.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 | = | 10ʼ (3 m) |
1 x 45° elbows | = | 8¹⁄₂ʼ (2.6 m) |
2 x 45° elbows | = | 7ʼ (2.1 m) |
3.A minimum of an 8ʼ vertical rise.
4.Two sets of 45° elbows offsets within these vertical installations. From 0 to a maximum of 8ʼ (2.4 m) of vent pipe can be used between elbows. (Fig. 34)
5.7DVCS must be used to support offsets. (Fig. 34) This application will require that you first determine the roof pitch and use the appropriate 7DVSKV (A, B or F). (Refer to Venting Components List, Page 21)
18 | 10007317 |
