SCF-Revolution Manual
12
VENTING: DETERMINING MATERIALS
TYPE OF MATERIALS:
1. PL Vent must be used.
2.
Exception: Single wall stainless steel may be used inside an existing chimney.
(No
clearances to combustibles are needed on single wall stainless steel adaptors, rigid or flex pipe
installed within a chimney.)
3. A clean out “tee” (PL Vent or “Quick-Connect Exhaust”) must be installed directly to the
furnace and at the bottom of each vertical run of the exhaust system. These tees are to assist in
periodically cleaning the pipe. Single or double clean-out tees may be used.
The exhaust system
must be installed so the entire system can be cleaned without disassembly.
NOTE: ADHERE TO THE PL VENT CLEARANCES TO COMBUSTIBLES AS REQUIRED.
STRICTLY OBSERVE THE PL VENT MANUFACTURER’S SAFETY SPECIFICATIONS.
QUANTITY OF MATERIALS:
1. It is recommended that the vent system be installed with a
minimum of three feet (3’) of
vertical rise
above the exhaust port on the back of the furnace.
FAILURE TO PROVIDE THE NATURAL DRAFT THAT RESULTS FROM A VERTICAL
RISE MAY RESULT IN SMOKE BEING RELEASED INTO THE HOUSE WHEN
ELECTRICITY TO THE UNIT IS INTERRUPTED WHILE BURNING OR SMOLDERING
PELLETS OR CORN REMAINS IN THE BURN GRATE. (
See “Battery Backup” on page 9)
2. It is not recommended to run vertical venting outside the heated environment where the
furnace is installed. Running a venting system in a cold environment may cause the flue
temperatures to cool down too much for adequate drafting. See figures 5 & 6 on pages 13 & 14.
Additional vertical exhaust venting should be provided when using:
a. More than one (1) elbow or tee; and/or
b. Horizontal runs of over three (3) feet.
(Horizontal runs over 10 feet not recommended)
3. For a venting system ending in a horizontal run, the exhaust pipe must be terminated by a
listed end cap or a PL vent elbow (45 or 90 degrees). Note: End caps or elbows must vent
exhaust gases away from the building.
4. For termination above the building roofline a rain cap is required.
5. The exhaust pipe on all Furnaces is 4” O.D. to accommodate a pipe adaptor.
