16
1)
Maintain the 32mm clearances (air spaces) to combustibles when passing
through ceilings, walls, roofs, enclosures, attic rafter, or other nearby combustible
surfaces. Do not pack air spaces with insulation. Check the "Venting Arrangement"
section for the maximum vertical rise of the venting system and the maximum
horizontal offset limitations.
2)
Set the gas appliance in its desired location. Drop a plumb bob down from the
ceiling to the position of the appliance flue exit, and mark the location where the vent
will penetrate the ceiling. Drill a small hole at his point. Next, drop a plumb bob from
the roof to the hole previously drilled in the ceiling, and mark the spot where the vent
will penetrate the roof. Determine if ceiling joists, roof rafters or other framing will
obstruct the venting system. You may wish to relocate the appliance or to offset, as
shown in
the
following diagram to avoid cutting load bearing members.
3)
A Firestop spacer must be installed in the floor or ceiling of every level. To install
the Firestop spacer in a flat ceiling or wall, cut a 10”(254mm) square hole. Frame the
hole as shown in
the
following diagram and install the firestop.
4)
Assemble the desired lengths of pipe and elbows. Ensure that all pipes and elbow
connections aresealed as per manufacturer's specifications.
5)
Cut a hole in the roof centered on the small drilled hole placed in the roof in Step 2.
The hole should be of sufficient size to meet the minimum requirements for
clearance to combustibles of 32mm. Slip the flashing under the shingles.
Summary of Contents for DV36
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Page 25: ...25 Positioning the Logs ...
