Hearth & Home Technologies CUMBGAP-MBK User Manual

Page of 36
Page 15
Cumberland Gap Wood Stove
R
September 1, 2008
7006-188E 
When a metal prefabricated chimney is used, the manufacturer’s installation instructions must be followed precisely.  It will be 
necessary to install the ceiling support package or wall pass through, “T” section package, firestops (when needed), insulation 
shield, roof flashing, chimney cap, and any other materials deemed necessary by the prefabricated chimney manuafacturers' 
instructions.  Maintain the proper clearance to the structure as recommended by the chimney manufacturer.  This clearance 
is usually a minimum of 2" (51mm), although it may vary by manufacturer or for certain components. Follow the chimeny 
manufacturers’ instructions carefully.
There are basically two methods of metal chimney installation.  One method is to install the chimney inside the residence through 
the ceiling and the roof. Install an attic insulation shield to maintain the specified clearance to insulation.  Insulation in this air space 
will cause a heat buildup which may ignite the ceiling joists. This method of installation requires, at minimum, a ceiling support 
package, an insulation shield and roof flashing. See Figure 15A. 
The other method is to install an exterior chimney that runs up the outside of the residence.  See Figure 15B.  The components 
illustrated may not look exactly like the system you purchase, but they demonstrate the basic components necessary for a proper 
and safe installation.
The chimney must be the required height above the roof or other obstruction for safety and for proper draft operation.  The require-
ment is that the chimney must be at least 3 ft. (91cm) higher than the highest point where it passes through the roof and at least 2 
ft. (61cm)  higher than the highest part of the roof or structure that is within 10 ft. (305cm) of the chimney, measured horizontally. 
(See page 11)
In Canada, when using a factory-built chimney, make sure it is safety listed, Type UL 103 HT  CLASS "A" 
or conforming to CAN/ULC-S629, STANDARD FOR 650°C FACTORY-BUILT CHIMNEYS.
CONNECTION TO A  METAL PREFABRICATED CHIMNEY
I
MPORTANT!  FOLLOW THE CHIMNEY MANUFACTURERS’ INSTALLATION INSTRUCTIONS AND MAINTAIN 
CLEARANCES AS SPECIFIED ON PAGES 6-8.
Figure 15B
Floor
Protector
Chimney 
Combustible
Ceiling
Combustible Wall
Insulated "T"
Flashing
Listed Cap
Maintain 2" (51mm) 
Clearance Through Eave
*
*
*
Listed 
Chimney Pipe
Chimney 
Connector
To Stove
Trim Collar 
on Inside 
Wall
Combustible Outside Wall
2" (51mm) 
Clearance
Listed Chimney
Insulated "T"
Wall Support
Wall Spacer on 
Outside Wall
*
Refer to Clearances to Combustibles
EXTERIOR CHIMNEY
INTERIOR CHIMNEY
Combustible Wall
Floor 
Protector
Chimney 
Connector
Ceiling Support
Listed Chimney
Maintain 2" (51mm) 
Clearance
Listed Cap
Storm Collar
Flashing
*
*
*
Refer to Clearances 
to Combustibles
Combustible 
Ceiling 
Joists
Chimney 
Connector
To Stove
Ceiling 
Support
Specified 
Clearance
Attic 
Insulation 
Shield
Listed 
Chimney
Figure 15A
NOTE:  ALL HORIZONTAL INSTALLATIONS REQUIRE ACCESSORY HORIZONTAL FLUE SHIELD, PART 
HTSHLD-7006, TO COMPLY WITH REQUIRED CLEARANCES.
NOTE:  OPTIONAL FIRE SCREEN, PART SCR-7006, CAN ONLY BE USED IN FULL VERTICAL INSTALLATIONS.