Vermont Casting 3LDVT Manual De Usuario

17

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)

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).