Specifications
DAKA 521FB Manual Page 26 of 32 January 2009
Rev. 3, June 2013
XI. OPERATING INSTRUCTIONS
FUEL TYPES
Burn wood only or burn coal only. Do not burn
garbage, flammable fluids, drain oil, wood chips
or any other non-approved items. Wood should
be cut & split and seasoned for at least 6
months.
FUELING PROCEDURE
Start fires by first taking single sheets of
newspaper and rolling them tight. Lay them on
the grate. Place finely-split kindling on top of
newspaper.
Open ash door about 1” and turn auto damper
to “High.” Place one more sheet of paper on
top of shelf baffle inside furnace. Light this
sheet first and let it burn completely out before
lighting paper underneath kindling. NOTE:
Burning the newspaper on top of baffle first
helps pre-heat the flue and gets the draft
working.
With the kindling burning, proceed to add
several larger pieces of cord wood. DO NOT
FILL ABOVE THE TOP OF THE FIREBRICK.
With the fire now burning, make sure to close
the ash door tightly and turn the auto damper to
appropriate setting for your heating needs.
Attend to fire as often as possible and add
wood as needed.
FIRE CHAMBER AND ASH PAN
Check ash pan every few days and safely
dispose of ashes. Keep ashes from building up
on grate and interfering with combustion airflow
from below.
AIR FILTER (14 x 20 x 1)
Check weekly and change as necessary.
FLUE PIPE AND CHIMNEY
A visual inspection of the flue pipe and chimney
is recommended once a week for the first
month and once a month thereafter.
Most problems associated with creosote are
seen in the fall and spring times of the year. It
is at this time when most people do not need
much heat to keep the house warm.
Remember to build fires using less wood and
continue to run the damper at a higher setting
vs. over-filling the firebox and turning the
damper down. This may require more frequent
tending of the fire, but will result in a cleaner
and safer fire.
If running the furnace at higher setting results in
too much heat generation, i.e., “over-heating
the house,” the best thing to do is reduce the
amount of wood used.
An inexpensive magnetic thermostat located on
the flue pipe is a great way to tell what
temperature you are burning at. Flue pipe
temperatures in the range of 300°-600° are
recommended. Creosote is formed at temps
lower than 300°.
OPERATING CONTROLS
Snap Disc Fan Control
The snap disc fan control (mounted in the J-box
extension ring on the side of the DAKA furnace)
is designed to turn on the 550-cfm lift blower on
the DAKA furnace whenever the air
temperature within the air jacket exceeds
120F. It should turn it off whenever the air
jacket temperature falls below 100F. This
range is built into the snap disc thermostat and
cannot be adjusted.
IMPORTANT: In a supplementary/“add-on”
installation, the blower on the DAKA furnace is
not used as a circulation blower for heating the
house. It is used as a lift blower to get the heat
into the supply plenum of the primary furnace. If
your primary furnace is not equipped with a fan
control in the supply plenum to turn on the
primary blower as heat is received from the
DAKA furnace, one will have to be installed. It
will need to be wired in parallel with the primary
blower fan control at the heat exchanger level.
See Installation Section, page 23, for necessary
position of this fan control.