Specifications

DAKA 521FB Manual Page 6 of 32 January 2009
Rev. 3, June 2013
V. OPTIONAL FURNACE ACCESSORIES
DAKA CORPORATION
955 Industrial St NE, Pine City MN 55063
Telephone: [phone] Fax: [phone]
Email: [e-mail] Website: www.dakacorp.com
Visit our website or call 1-800-884-3252
for pricing and shipping information.
273 - TWIN 550-CFM BLOWER KIT
For installations requiring additional air pressure, such as
for use as a central furnace. Kit includes one 550-cfm split-
capacitor blower, wiring and instructions. For use with
models 521FB/621/622, many earlier deluxe models.
258 – DUAL BLOWER RETURN COLD AIR FILTER BOX
With No. 273 twin blower kit installed, this galvanized filter
box covers both blowers. Takes one 14" x 25 x 1” paper
furnace filter (not included.).
218 - LARGE MULTI-SPEED BLOWER & FILTER BOX
Mounts on side of furnace to provide increased air delivery
for higher static pressure central furnace applications. Kit
includes a direct drive 1/3 HP motor with multi speeds
(select speed based on wiring configuration), squirrel cage
& housing assembly, galvanized sheet metal cold air return
filter box, mounting hardware & assembly instructions.
223 - HOT-TUBE™ DOMESTIC HOT WATER PREHEATER
Connects to present domestic hot water tank to provide
gallons of piping hot water. Weldless boiler pipe has working
pressure of 1200lbs./sq. in. Kit includes pre-heater pipe,
hardware, gaskets and instructions.
238D - SOFT COAL SHAKER GRATE KIT
Replaces wood-burning grate to permit burning of
bituminous and sub-bituminous coal in Deluxe models
311/411/521FB/621/622 above, many earlier models.
Includes extra -thick 3-section shaker grates and shaker rod
assembly & fire door with spinner knob.
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253 - FORCED DRAFT CONVERSION KIT
Adds convenience of living area control of heat output of
Deluxe models 521FB and 621, many earlier models. Kit
includes 35-cfm draft blower, wall thermostat,
transformer/relay, controls, wiring and instructions.
283 - BAROMETRIC DRAFT REGULATOR
Installs in chimney connector to help provide constant draft
control, extend burn times, save fuel, avoid over-firing, and
reduce creosote formation. Adjustable from .02" to .08"
updraft. For 6" pipe. U.L. Listed.