Vermont Casting 43LDVT - Manual (Page 17)

17
LDVT Series Direct Vent GaS Fireplace
10007852
1 2
3
4
Max. 8' (2.4m)
FP1245
through the roof
90 & 45 degree
12/02
1 + 2 + 3 + 4 = 270°
FP1245
Fig. 29 Typical offset application.
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. 28)
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. 29)
• 7DVCS must be used to support offsets. (Fig. 31)
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. 33)
Vertical Through-the-Roof Applications
BG401
Snorkel
2/10/99 djt
Snorkel
Wall Screws
Foundation Recess
Recess Brackets
Watertight Seal
Around Pipe
Sheet Metal
Screws
BG401
Fig. 27 Snorkel installation, recessed foundation.
Max. 10' (3m)
Max. Height
40' (12m)
Min. Height
7���' (2.3m)
FP1244
through the roof
max/min dims
12/02
Pipe Straps Every
3’ (914mm)
FP1244
Fig. 28 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).