Step 3.
For installations using a round support box/wall thimble (check pipe manufacturer's instructions), mark the wall for a 10 in. x 10 in. (254mm x 254mm) square hole. The center of the square hole should line up with the center line of the horizontal pipe, as shown in Figure 5.5. Cut and frame the hole in the exterior wall where the vent will be terminated. If the wall being penetrated is constructed of noncombustible material, i.e. masonry block or concrete, a 7 in. (178mm) diameter hole is acceptable.
CENTER OF
HOLE
CENTER
LINE
WALL | CENTER | |
LINE | ||
THIMBLE | ||
| ||
|
|
CENTER OF
HOLE
CENTER
LINE
CENTER LINE
WALL
THIMBLE
Wall Thimble
14 in. (356mm) Pipe Length
Max. Wall Depth = 10 in. (254mm)
1 in. (25mm) Clearance from stove corner to combustible wall.
45° Elbow
1 in. (25mm) Clearance from stove corner to combustible wall.
45° Elbow in Corner Installation
When installing the Sapphire in a rear vent configuration with no vertical rise: a Snorkel Kit must be used, and a derating orifice must be installed. The appropriate orifice is supplied with the Rear Vent Kit.
Figure 5.5
NOTE:
(1)Installation requires a minimum of 11 in. (279mm) horizontal run. Each 1 ft. (305mm) of horizontal vent run must include a 1/4 in. (6mm) of vertical rise towards the termination. 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 9.
(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.
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
WOOD
SCREW
PART HHW2 PART
WALL THIMBLE
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
January 28, 2008 | Page 13 |