Vermont Casting 43LDVT, 36LDVT 39LDVT manual Vertical Through-the-Roof Applications

	Snorkel
Foundation Recess	Wall Screws
Recess Brackets
Watertight Seal	Sheet Metal
	Screws
Around Pipe

BG401

Fig. 27 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. 28)

Max. 10' (3m)

Max. Height

40' (12m)

Min. Height 7���' (2.3m)

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).

LDVT Series Direct Vent GaS Fireplace

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)

Max. 8' (2.4m)

4

1 + 2 + 3 + 4 = 270°

3

12

FP1245

Fig. 29 Typical offset application.

10007852 17