Vermont Castings DVR28 Direct Vent Gas Fireplace
Rear Wall Installation
Twist Lock Pipe
STEP 1
Locate vent opening on the wall. To locate hole center consult with appropriate fireplace dimensions, Page 4. Frame as shown below.
Combustible Walls (Fig. 17): Cut a 10³⁄₈”H x 9³⁄₈” W (264 x 240 mm) hole through the exterior wall and frame as shown.
Noncombustible Walls (Fig. 17): Hole opening must be 7¹⁄₂” (190 mm) in diameter.
Zero clearance sleeve is only required for combustible walls.
STEP 2
Measure wall thickness and cut zero clearance sleeve parts to proper length (MAXIMUM 12”/305 mm). Assem- ble sleeve and attach to firestop with #8 sheet metal screws (supplied). (Fig. 18)
STEP 3
Measure the horizontal length requirement for the vent- ing including a 2” (51 mm) overlap, i.e. from the elbow to the outside wall face plus 2” (51 mm). (Fig. 15 or 16)
Vent Opening for Combustible Wall
9³⁄₈”
(240mm)
Adjustable | Max. Length |
Zero Clearance | 12” (305mm) |
Sleeve |
|
| #8 Screws (2) |
#8 Screws |
|
(2) | #8 Screws |
| (2) |
Firestop |
|
Adjustable Zero Clearance Sleeve | ZCS101 |
Fig. 18 Adjustable zero clearance sleeve.
STEP 4
Install the 4” (102 mm) vent to the appliance collar and secure with three (3) sheet metal screws. Install the 7” (178 mm) vent pipe to the appliance collar and secure with three (3) sheet metal screws. It is not necessary to seal this connection. If a 45° elbow is being used, attach the elbow to the appliance in the same manner then attach the venting to the elbow.
It is critical there is no downward slope away from the appliance when connecting
the vent or elbow. STEP 5
Guide the venting through the vent hole a you place the appliance in its installed position. Guide the 4” (102 mm) and 7” (178 mm) collar of the vent termination into the
10³⁄₈”
(264mm)
Firestop
Fireplace Hearth
Top Tabs
Framing
Detail
Install provided firestop with zero clearance sleeve into framing opening after drywall or finish material is installed. Use the tabs for clearance locators top and bottom.
Opening for
Noncombustible Wall
7¹⁄₂”
(190 mm)
outer ends of the venting. Do not force the termination. If the vent pipes do not align with the termination, remove and realign the venting at the appliance flue collars.
(Fig. 19) Attach the termination to the wall as outlined in the instruction sheet supplied with the termination.
Finished Wall |
|
Firestop | Vent |
| |
| Termination |
Bottom Tabs
FP1751
Fig. 17 Locate vent opening on wall.
Zero Clearance
Sleeve
FP1753
Fig. 19 Side view of final unit location.
12 | 20012301 |