Specifications

DAKA 521FB Manual Page 24 of 32 January 2009
Rev. 3, June 2013
X. INSTALLATION
B. CONNECTING TO CHIMNEY
Mount and secure 6” non-galvanized smoke
pipe, 24-ga. or heavier, to rear smoke outlet
collar on DAKA furnace. The collar is sized so
that the crimped end of a standard 6” stove pipe
will fit inside collar. Continue same gauge
single-wall pipe to chimney connection. At
chimney connection, use a double-crimped end
stove pipe adapter to connect to chimney.
Smoke pipe should normally be installed with
crimped ends leading from chimney to furnace.
Should runny creosote be formed in chimney
connector, it will then return through pipe to
furnace without dripping out of joints.
INSTALL BAROMETRIC REGULATOR
A barometric regulator should be installed in
smoke pipe at least 18” from furnace. This will
permit adjustment of chimney draft to a
maximum of .06’ water column draft.
Barometric Regulator No. 283 with adjustable
draft setting is available through DAKA dealers
or direct from the factory for this purpose. See
FIG. 21.
Single wall smoke pipe must maintain a
minimum 18” clearance to all combustibles and
must never pass through walls or ceilings. Use
proper thimbles for those passages.
All joints of chimney connector pipe should be
secured with a minimum of three No. 7 sheet
metal screws and further sealed with furnace
cement to maintain good draft.
Maintain a minimum of ¼” per foot of pipe rise
to chimney connection. The steeper the rise,
the more easily draft will be maintained,
generally.
Limit the use of 90°elbows in any chimney
connector as they adversely affect draft.
If 90° elbows must be used, do not install more
than two in any chimney connector.
NOTE: During initial start-up, the unit may omit
fumes as the paint on the outside shell cures.
Please provide outside ventilation through the
home to help clear the odor.
Heat reclaimers, fins or the like should not be
used on smoke pipe as they tend to cool flue
gases and add to creosote formation on stoves
and furnaces of advanced airtight design.
Adequate combustion air must be provided in
furnace area to prevent poor firing and poor
draft. Keep a window cracked open in furnace
area or install dryer-type 4” vent to bring in
outside fresh air.
FIG. 21
Chimney
Barometric
Regulator
Smoke Pipe