USSC 5660 Installation And Operating Manual page 15

INSTALLING YOUR ROOM HEATER ‐ continued
1. Locate your pellet stove in a location which meets the requirements of this manual, but in an area
where it does not interfere with the house framing, wiring, etc.
2. Install a non‐combustible hearth pad underneath the pellet stove. This pad should extend at least 6"
(152mm) in front of the unit.
3. Place the pellet stove approximately 15" (381mm) away from the interior wall.
4. Locate the center of the exhaust pipe of your unit. This point should then be extended to the interior
wall of your house. Once you have located the center point, on the interior wall, cut a 7" (175mm)
diameter hole through the wall.
5. The next step is to install the wall thimble, refer to the instructions which come with the wall thimble
for this step.
6. Install the appropriate length of exhaust vent pipe into the wall thimble. See step 11 when
determining the correct length of exhaust vent to use.
7. Outside Fresh Air is Mandatory when installing this pellet stove room heater in airtight homes and
mobile homes. Be sure that the outside air vent has an approved cap on it to prevent rodents from
entering. Be sure to install in location that won't become blocked with snow, etc.
8. The air intake pipe is equipped with a butterfly valve that is preset to maximum air intake. For
optimum operating efficiency you may calibrate the butterfly valve to provide less intake air. (See
Figure 7) Caution: Too much restriction on the intake air will cause dirtier burn, therefore, will
require more frequent cleaning.
9. Connect the exhaust vent pipe to the exhaust outlet of your pellet stove.
10. Secure all vent joint connections with 3 screws. Seal the exhaust vent joint connections with high
temperature silicone sealant.
11. Push the unit straight back to the interior wall, being sure to maintain the minimum clearances to
combustibles 6" (152mm) to the back of the unit. Seal the annular space of the wall thimble and
around the vent pipe with high temperature silicone sealant.
12. The exhaust vent pipe must extend at least 12" (300mm) out past the exterior wall. Seal the annular
space of the wall thimble and around the vent pipe with high temperature silicone sealant.
13. Install an approved horizontal termination cap or if necessary install a 90° elbow and appropriate
length of vertical venting. An approved vertical vent cap is recommended.
HORIZONTAL EXHAUST VENT INSTALLATION
15