Installation 8, Venting through existing chimney, Basement installation – Osburn Stoves by SB I HYBRID-45 MF User Manual
Page 8

A. VERTICALLY WITH NEW CHIMNEY SYSTEM (Refer to Figure 9
& 10 for basement installation)
NOTE: Follow L-Vent chimney manufacturer’s instructions.
OPTION: To achieve a center vertical installation, a 45º elbow and a
clean-out tee can be used to offset the pipe from the exhaust outlet to
the rear center of the stove.
OPTION: Install L-Vent elbow in place of clean-out tee. Locate stove.
Drop plumb bob to center of tee outlet, mark point on ceiling. Install
ceiling support and L-Vent pipe per L-Vent manufacturer’s instructions.
1. Always maintain 3” clearance from combustible materials. When
passing through additional floors or ceilings, always install firestop
spacer.
2. After lining up for hole in roof, cut either around or square hole in
roof, always 3” larger all the way around pipe. Install upper edge
and sides of flashing under roofing materials, nail to the roof along
upper edge. Do not nail lower edge. Seal nail heads with non-
hardening waterproof mastic.
3. Apply non-hardening, waterproof mastic where the storm collar will
meet the vent. Slide storm collar down until it sits on the flashing.
Seal and install cap. Mobile home installations must use a spark
arrester.
B. VERTICALLY INTO EXISTING CHIMNEY SYSTEM
As an alternative, 3” or 4” L-Vent can be run inside existing chimney to
termination(Figure 11). This is the preferred method.
Follow guidelines for equivalent vent length.
BASEMENT INSTALLATION
FOR BASEMENT INSTALLATION
A 4" PIPE IS RECOMMANDED
WALL
STRAP
FOLLOW CHIMNEY OR
VENT MANUFACTURER'S
INSTRUCTIONS
CLEAN OUT
TEE
CLEAN OUT
TEE
VERTICAL ROOF VENT
12" MINIMUM
CLEARANCE
TO ROOF
CLEAN OUT
TEE
FOLLOW CHIMNEY OR
VENT MANUFACTURER'S
INSTRUCTIONS
ATTIC
INSULATION
SHIELD
FIGURE 9
Venting through roof
INSTALLATION
8
FIGURE 11
Venting through
existing chimney
FIGURE 10
Basement installation