Osburn Stoves by SB I HYBRID-45 MF Benutzerhandbuch

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