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10 USSC
Installation
THROUGH THE WALL INSTALLATION (RECOMMENDED INSTALLATION)
To vent the unit through the wall, connect the pipe adapter to the exhaust motor adapter. If the exhaust adapter is at least
18-inches above ground level, a straight section of pellet vent pipe can be used through the wall.
Your furnace dealer should be able to provide you with a kit that will handle most of this installation, which will include a
wall thimble that will allow the proper clearance through a combustible wall. Once outside the structure, a 3-inch clearance
should be maintained from the outside wall and a clean out tee should be placed on the pipe with a 90-degree turn away
from the house. At this point, a 3-foot (minimum) vertical section of pipe should be added with a horizontal cap, which
would complete the installation.
A support bracket should be placed just below the termination cap or one every 4-feet to make the system more stable.
If you live in an area that has heavy snowfall, it is recommended that the installation be taller than 3-feet to get above the
snowdrift line. This same installation can be used if your furnace is below ground level by simply adding the clean-out
section and vertical pipe inside until ground level is reached. With this installation you have to be aware of the snowdrift
line, dead grass, and leaves. We recommend a 3-foot minimum vertical rise on the inside or outside of the house.
The “through the wall” installation is the least expensive and simplest installation. Never terminate the end vent under a
deck, in an alcove, under a window, or between two windows. We recommend Simpson Dura-Vent
®
or Metal-Fab
®
kits.
THROUGH THE ROOF/CEILING INSTALLATION
When venting the furnace through the ceiling, the pipe is connected the same as through the wall, except the clean-out
tee is always on the inside of the house, and a 3-inch adapter is added before the clean-out tee.
You must use the proper ceiling support flanges and roof flashing (supplied by the pipe manufacturer; follow the pipe
manufacturer’s directions). It is important to note that if your vertical run of pipe is more than 15-feet, the pellet vent pipe
size should be increased to 4-inches in diameter.
Do not exceed more than 4-feet of pipe on a horizontal run and use as few elbows as possible. If an offset is required,
it is better to install 45-degree elbows rather than 90-degree elbows.
1 Vertical Cap
2 Storm Collar
3 Adjustable Roof Flashing
4 Cathedral Ceiling Support Box
5 Pipe
6 45° Elbow
7 90° Elbow
8 Horizontal Cap
9 Wall Thimble
10 Black Ceiling Support Firestop Spacer
11 Single Tee with Clean-Out Adapter
12 Tee Support Bracket
13 Double Tee with Clean-Out Adapter