Hearth & Home Technologies CUMBGAP-PMH User Manual

Page 11

R

September 1, 2008

7006-188E 

To be sure that your Quadra-Fire stove burns properly, the 
chimney draft (static pressure) should be approximately -.04” 
water column (W.C.) during a low burn and -.10” W.C. during 
a high burn, measured 6” (152mm) above the top of the stove 
after one hour of operation at each burn setting.  NOTE:  These 
are guidelines only, and may vary somewhat for individual 
installations.

This stove was designed for and tested on a 6” (152mm) 
chimney, 12 ft.-14 ft. (360-420cm) high, measured from the 
base of the stove.  The further your stack height or diameter 
varies from this configuration, the possibility of performance 
problems increases.  In addition, exterior conditions such 
as roof line, surrounding trees, prevailing winds and nearby 
hills can influence stove performance.  Your local dealer is 
the expert in your geographic area and can usually make 
suggestions or discover problems that will easily correct 
your flue draft problem, allowing  your woodstove and its flue 
system to operate correctly and provide safe and economical 
heat for your home.

A masonry chimney or a listed factory-built UL103 HT Class 
“A” chimney must be the required height above the roof 
and any other nearby obstructions.  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 2-10-3 
Rule, Figure 11A

We recommend using a minimum total system height of 12 
ft. (360cm), measured from the flue collar to the top of the 
chimney (not including chimney cap).  

Availability of combustion air:  A source of air (oxygen) is 
necessary in order for combustion to take place.  It is impor-
tant to realize that whatever combustion air is consumed 
by the fire must be replaced.  If you are using room air, the 
air is replaced via air leakage that occurs around windows 
and under doors, etc.  However, in most newly constructed 
houses, mobile homes, or even existing homes that are 
fitted with tightly sealed doors and windows, the area from 
which the combustion air is taken is relatively air tight.  In 
these cases, an outside air source must be made available 
to feed combustion air from outside the home into the stove.  
An Outside Air Kit is available for the Cumberland Gap as an 
option, Part 831-1780.  The kit is a requirement for mobile 
home installations.  

3 ft Min
(91cm)

2 ft Min (61cm)

10 ft Min
(305cm)

There are two separate and different parts to a flue system: 
the chimney connector and the chimney itself.

A.  Single wall connector or stove pipe.  This must be at 

least 24 gauge mild steel or 26 gauge blue steel.  The 
sections must be attached to the stove and to each other 
with the crimped (male) end pointing toward the stove.  
See Figure 11B.  All joints, including the connection 
at the stove collar, should be secured with three sheet 
metal screws.  Make sure to follow the minimum clear-
ances to combustibles as set out on pages 6-8 of this 
manual. Where passage through the wall, or partition of 
combustible construction is desired, the installation shall 
conform to CAN/CSA-B365.

B.  Factory-built listed chimney connector (vented).  A 

listed connector (vented) must be used when installing 
this unit in a mobile home or residental home.   They must 
conform to each other to ensure a prope fit and seal.