Hearth & Home Technologies HUDBAY-FS User Manual

10/08

Page  13

Quadra-Fire  •  Hudson Bay  •  7003-121 Rev. i

NOTE:
(1) Installation requires a minimum of 6 in. (152mm) 

horizontal run of vent with a 1/4 in. (6mm) rise run towards 
the termination. Each 1 ft. (305mm) of horizontal venting 
must include a 1/4 in. (6mm) rise.  Never allow the vent 
to run downward. This could cause high temperatures 
and may present the possibility of a house or structure 
fire.

(2)  The location of the horizontal vent termination on an 

exterior wall must meet all local and national building 
codes, and must not be easily blocked or obstructed, 
see 

Figure 4.4 on page 8. 

(3)   For installations requiring a vertical rise on the exterior 

of the building,  the HHT RHVK snorkel kit (Part #844-
8921) is available with a 14 in. (356mm) and a 36 in. 
(914mm) tall snorkel termination cap.  Follow the 
same installation procedures as used for standard 
horizontal terminations. If the  snorkel termination must 
be installed below grade (i.e. basement application), 
proper drainage must be provided to prevent water from 
entering the snorkel termination.  Do not backfill around 
snorkel termination.

WOOD
SCREW

WALL THIMBLE

PART HHW2 PART
841-0670 (Preferred)

Step 4. 
Position the horizontal termination cap in the center of the 10 
in. x 10 in. (254mm x 254mm) square hole and run a bead 
of non-hardening mastic around its outside edges, so as to 
make a seal between it and the wall, attach termination cap 
to the exterior wall with the four wood screws provided. The 
arrow on the vent cap should be pointing up (

Figure 5.6). 

NOTES:
(1)  The four wood screws provided should be replaced with 

appropriate fasteners for stucco, brick, concrete, or 
other types of sidings.

(2)   Termination cap HHW2 (Part #841-0670) is highly 

recommended on a building with vinyl siding, as the 
vinyl siding standoff is built in. The pilot hole will be 2 in. 
(51mm) closer to the bottom of the square than the top. 
Using a framing square, draw a 14 in. x 14 in. (356mm x 
356mm) square around the pilot hole in the siding. See

Figure 5.7.

  

(

NOTE:  If you are installing termination cap HHW2, the 

pipe will be off center on the flashing).  Ensure that proper 
clearances to combustible materials are maintained. 

 If 

you are using an approved termination cap other than 
HHW2 on a building with vinyl siding, a vinyl siding 
standoff should be installed between the vent cap and 
the exterior wall (

Figure 5.8, on the next page). Attach 

the vinyl siding standoff to the horizontal termination 
cap. The vinyl siding standoff prevents excessive heat 
from possibly melting the vinyl siding material. The vent 
termination cap shall not be recessed into a wall or 
siding.  Remove siding from the area where the standoff 
will be located.

CENTER 
LINE

CENTER 
LINE

CENTER OF 
HOLE

WALL 
THIMBLE