Nature's Comfort NC-40 Installation And Operation Manual - page 6
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NOTE: WHERE PASSAGE THROUGH A WALL OR PARTITION OF COMBUSTIBLE CONSTRUCTION IS DESIRED
THE INSTALLATION SHALL CONFORM TO CANADA /CSA-B365.
Be sure to maintain the structural integrity of your home when passing a vent through walls, ceilings, or roofs and use only
minimum 3” (or 4”, requires reducer) listed type “L” or “PL” pipe and fittings that must be in good condition and kept clean.
Horizontal Exhaust Vent Installation (See following figure)
NOTE! Venting joints may NOT be located in an attic, roof space, closet or similar concealed space, or floor or
ceiling.
1. Place your appliance in a location which meets the requirements of this manual and where it does not interfere with
the house framing, wiring, etc. Note: The
stove cannot be used without foot screws installed for maintaining a 1” gap from
the floor to the bottom of the stove base. This is required to keep temperatures cool enough underneath the unit.
2. Install the non-combustible hearth pad. Temporarily place
the stove approximately 15” (381 mm) away from the
interior wall.
3. 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 the appropriate sized hole through the wall for
thimble being used.
4. Install wall thimble. Refer to manufacturer instructions that should come with the wall thimble purchased.
5. Install the appropriate length of exhaust vent pipe into the wall thimble. Consider step 11 when determining the
correct length of exhaust vent to purchase.
6. Install combustion air intake pipe. Be sure that the outside air intake vent has a proper cap on it to prevent rodents
from entering; also be sure it is installed where it won’t become blocked with snow, etc.
7. Connect the exhaust vent pipe to the exhaust outlet of your appliance.
8. Secure all vent joint connections with 3 screws. Seal the exhaust vent joint connections with high temperature
silicone sealant.
9. Push the unit straight back to the interior wall but make sure to maintain the minimum clearances to combustibles
– 7.5”
(152 mm) to the back of the unit. Seal the annular space of the wall thimble and around the vent pipe with high
temperature silicone sealant.
10
. The exhaust vent pipe must extend at least 12” (300 mm) out past the exterior wall and the vent exit also be a
minimum of 12” higher than the top of the stove for a draft to be created if power is lost while burning to reduce the
chance of smoke exiting the stove in the home. Seal the annular space of the wall thimble and around the vent pipe with