Owner`s manual

11.0 INSTALLATIONS WITH THROUGH THE ROOF VERTICAL
TERMINATION
11.1 All Co-axial Vent Installations
1. Check the roof pitch to determine which roof flashing will be
needed - see vent accessories section 2.4.
2. The distance from the roof to the lowest terminal discharge
opening (“H” in fig. 55) depends on the roof pitch and must be in
accordance with the current CAN/CGA-B149 in Canada or ANSI
Z223.1 in the USA.
3. The minimum clearances to combustible materials all round the
vent pipes must be in accordance with the dimensions shown in
sections 4 & 5 of this manual.
4. If rear vent connection to the appliance, fit a 90° Dura-vent DV
GS elbow to the appliance vent adapter.
5. Place the appliance in its proper location.
6. Drop a plumb from the ceiling to the center of the appliance
vent opening. Mark the position on the ceiling. Drill a small hole at
the marked position.
7. Determine the position where the vent will pass through the
roof. If directly above the position where it penetrates the ceiling,
drop a plumb from the roof to the small hole in the ceiling and mark
the roof at this spot.
If rafters or other obstructions will prevent a vertical exit or if clear
attic space is desired, the roof outlet can be offset using 45º elbows -
see fig. 55.
Drill a small hole at the marked position.
32 of 48
8. A ceiling firestop must be
installed at the second floor and
higher floors.
A ceiling support should be used
below the flat ceiling.
To install the firestop & support cut
and frame a 10” (254mm) square
hole centered on the small hole
previously drilled - see fig. 56.
9. Fit vent accessory elbows and
pipe lengths as required up through
ceiling support boxes and firestops.
If installation includes offset,
support the offsetting pipes every 3
feet (1m) with wall straps (fig. 28).
10. Cut a hole in the roof centered on
the small hole. The hole must allow for the minimum clearances to combustible
materials - see sections 4 & 5.
Fig 55
Fig 56
11. Fit pipe lengths through the roof. Fit roof flashing securing it with roofing nails.
12. Fit storm collar and termination cap.
13. FS installations - Secure the appliance to the floor or wall if necessary.
11.2 Co-linear Vent Installations
1. The chimney and fireplace opening sizes are shown in section 2 of this manual.
2. Place the appliance (fitted with the co-linear near the fireplace opening but allow
space for manipulating the chimney liners on to the appliance.
3. Drop the 3” dia. flexible liners into the chimney from outside.
4. Fit the liners to the co-linear adapter paying attention to inlet and exhaust and move the appliance to its proper
position. Be aware of the minimum liner bend radius and maximum liner horizontal run shown in Section 6of this
manual.
5. Fit the Dura-vent DV GS termination kit and flashing to the exterior of the chimney.
6. Secure the appliance to the floor or wall if necessary.