-5-
VENTING (DRAFT) REQUIREMENTS
The chimney flue is a critical component to the proper and efficient operation of any heating appliance. Heating
appliances do not create draft, draft is provided by the chimney. This appliance requires a draft of 0.05” water
column (0.1 Pa) at the flue collar. To achieve proper draft, your chimney must meet three minimum height
requirements; minimum height from top of appliance (15 ft. total height from top of appliance), minimum height
above roof penetration (3 ft.), and minimum height (2 ft.) above highest point of roof within a 10 ft. diameter
from the chimney. The chimney must also meet minimum and maximum cross sectional requirements. For that
reason a continuous 6” stainless steel liner from the flue collar to the top of the chimney is required. A stainless
steel adapter is recommended for fastening the stainless steel liner to the flue collar. The male (or crimped) end
of the adapter must be installed inside the flue collar to allow condensation or creosote in the liner to drain
back into the firebox. Chimney liners and/or adapters must be permanently fastened using a minimum of three
(3) screws at each connection. Chimneys outside of the home or on an exterior wall are difficult to keep at
operating temperatures and may result in increased creosote buildup, less draft, back drafting problems and
poor appliance performance and should be avoided.
a. Existing fuel-fired equipment shows evidence of back puffing, smoke roll-out, inefficient operation, or excessive
smell in the living area.
b. Opening a window or door alleviates any of the above problems or symptoms.
c. The building is constructed with a well-sealed vapor barrier, tight fitting windows, or has powered exhaust
fans.
d. Excessive condensation on windows in the winter.
e. The building has a ventilation system installed.
f. If, once installed, the solid-fuel appliance does not draw steadily, burns poorly or inefficiently, back-drafts or
experiences back-puffing when adding fuel.
WARNING: RISK OF FIRE - EXCESSIVE DRAFT CAN CAUSE OVERFIRING AND A POSSIBLE STRUCTURE FIRE. DO NOT
OPERATE THIS APPLIANCE WITH THE FLUE DRAFT EXCEEDING 0.06 in. w.c. (0.1 Pa).
FLOOR PROTECTOR
A solid non-combustible floor, concrete or solid masonry, must extend 6” (153 mm) to either side of the body of
the appliance and 17” (432 mm) in front of the face of the appliance. When combustible flooring falls within
these minimum dimensions, it must be covered with a UL listed floor protector, with an R-Value of at lease 1.4.
A grouted ceramic floor tile that meets local building codes and the minimum 0.84 R-factor requirements is
considered a durable equivalent.
C
B
Minimum Floor Protector Specifications
A
FLOOR PROTECTOR
WARNING: Risk Of Fire - DO NOT allow combustible materials (carpet, furniture, fuels) to be placed on or cover
the floor protector. All combustible materials must remain outside of the minimum clearance dimensions.
Key
in.
mm
A
17
432
B
¶
6
¶
153
C
38 U.S.A.
966
42 CAN.
1067
¶
=
Canadian installations
requires 8” (204 mm)
Summary of Contents for Ashley AW1820E
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