Avalon Firestyles B-Vent-1995 - Manual (Page 14)

P AGE 14
S
TOVE
I
NSTALLATION
(
CONT
.) -
For qualified installers only!
Vent Requirements
! Always maintain the required 1" clearance (air space) to combustible materials to prevent a fire
hazard. Do not fill air spaces with insulation.
! The gas appliance and vent system must be vented directly to the outside of the building, and never
be attached to a chimney serving a separate solid fuel or gas-burning appliance.
¥ Minimum 5' vertical rise from top of stove (see the illustration below)
¥ When the vent passes through a wall, a wall thimble is required. When the vent passes through a
ceiling, a support box or firestop is required. When the vent passes through the roof, a roof flashing
and storm collar are required. Follow the instructions and requirements provided with the vent when
installing.
¥ The horizontal run may not exceed 50% of the vertical rise
¥ Use 4" dia. B vent for entire system from one manufacturer (don't mix brands)
- or -
Use high temperature factory built or masonry chimney with listed gas chimney liner running the
entire length
¥ Vent termination must be above the roof and not below any eaves or overhangs
Type B Vent
Vent must
terminate a
minimum 1'
above the roof.
Listed Gas
Chimney Liner
Maintain 1"
minimum
clearance
Provide a 1/4" rise
for every 12" run.
Min. 5' Rise
High
temperature
factory built
chimney and
connector
Chimney with Liner Standard Installation Exterior Vent
Min. 5' Rise
The total
horizontal
run must
not exceed
50% of the
vertical rise
Do not block gas
vent termination