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#283 Barometric Draft Regulator #260 Single Blower Cold Air Return Filter Box (Model 521) - NO LONGER AVAILABLE #258 Dual Blower Cold Air Return Filter Box
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. Fits 6" pipe. U.L. Listed. Available for single-wall chimney pipe only.
Single Blower Cold Air Return Filter Box - For furnace Model #521.  Open back design allows virtually any size return air line to be hooked up.  Pre-punched and Pre-formed, easy assembly required.  Mounts over blower on back side of DAKA furnace and pre-filters all incoming cool air before it's heated and sent through furnace and is heated. With No. 273 twin blower kit installed, this galvanized filter box covers both blowers. Takes one 14" x 25" x 1" fiberglass furnace filter (not included.). May be used on models 311/411/412/521FB/621/622 and many earlier Deluxe models.
#238 Soft Coal Shaker Grate only #273 Twin 550-cfm Blower Kit (Series 500/600 Models) #223 Hot-Tube Domestic Water Pre-Heater
Replaces wood burning grate to permit burning of bituminous and sub-bituminous coal in Deluxe models 311/411/521FB/621/622FBT and many earlier models.  Includes extra thick 3-section shaker grates and shaker rod assembly.  Does NOT include fire door with spinner knob.

Increase the air flow by adding a second blower to the back of your DAKA furnace. Move more warm air through long duct runs or up to a second or third level of your home. Kit includes: One 550-CFM Blower with motor, wiring hardware and detailed installation manual also included. Compatible with DAKA furnace models: 511, 511D, 512, 512D, 521, 521FB, 621, & 622.

Designed to heat your home's tap water from the heat of the fire in the furnace.  Made of stainless steel.
#238FD Soft Coal Shaker Grate w/Spinner Knob Fire Door #253 Forced Draft Conversion Kit - Models: Medium & Large #218 Large Multi-Speed Blower & Filter Box Kit
Replaces wood burning grate to permit burning of bituminous and sub-bituminous coal in Deluxe models 311/411/521FB/621/622FBT and many earlier models.  Includes extra thick 3-section shaker grates and shaker rod assembly.  Also includes required fire door with spinner knob.  Order #238 if you already have fire door w/spinner knob. Upgrade your DAKA furnace to Forced Draft or also know as "induced draft". Get improved fire starting, overcome poor drafting chimney issues, along with the added convenience of being able to control the temperature in your living room without having to go to the furnace and adjust the Automatic Damper Control. Fits current DAKA Model furnace 521, 521FB & 621. (Models 622FBT & 832FB have this unit as standard feature). Mounts on side of furnace to provide increased air delivery for higher static pressure central furnace applications. Kit includes a large multi-speed 1/3 HP motor & galvanized steel cold air return filter box.