Home About Us Shipping Returns View All listings Store Categories Outdoor Wood Furnace Brands · Acme Furnace · Aquatherm · Brute Force · Conestoga Champion · Cozeburn · Crown Royal · Earth · Econoburn · Empyre · Freedom · Global Hydronics · Hardy · Hawken Energy · Heatmor · HeatMaster · Heat Source 1 · Hicks · Johnson · Legend · Mahoning · Natures Comfort · Ozark · Pacific Western · Portage Main · Ridge Wood · Royal · Shaver · Taylor · WoodMaster · Various Other Brands Central Boiler Water Treatment Central Boiler Chimney Central Boiler Electrical Central Boiler Heat Exchangers Central Boiler Unit Heaters Central Boiler Misc. Taco pumps And Supplies Door Gasket Material Hydronic Manifolds Other See all items in the store Product Description This NBK blower fan has a 3 bolt pattern on 4 inch flange. This blower fan can be used for most outdoor wood furnaces. Specifications This is a 50 CFT and 3036 RPM. This unit has a round flange Item PSC Blower Wheel Dia. (In.) 3 Wheel Width (In.) 1-7/8 CFM @ 0.000-In. SP 50 CFM @ 0.100-In. SP 48 CFM @ 0.200-In. SP 44 CFM @ 0.300-In. SP 39 CFM @ 0.400-In. SP 32 CFM @ 0.500-In. SP 18 Voltage 115 Hz 50/60 Phase Single Full Load Amps 0.23 RPM 3036 Bearing Type Ball Motor Type Permanent Split Capacitor Motor Enclosure Open Motor Insulation Class B Thermal Protection Auto Lead Length (In.) 13 Conduit Box Yes Ambient Temp. (Deg. F) 104 Max. Inlet Temp. (Deg. F) 104 Inlet Dia. (In.) 2-3/8 Outlet Dia. (In.) 2-1/8 Overall Height (In.) 5-13/16 Overall Width (In.) 5-1/8 Overall Depth (In.) 6-7/16 Wheel Type Forward Curve Drive Type Direct Mounting All Position Housing Finish Gray Enamel Housing Material Rolled Steel Agency Compliance UL Recognized US and Canada (E47479), CE Replaces 4C440 ABOUT US Authorized supplier of Central Boiler Parts and all other Outdoor Wood Furnace supplies. Your One Stop Shop for Outdoor Furnace Installation Parts Info: We specialize in supplying our customers with quality parts for a complete installation! We have anything you will need including: Insulated Pex Piping, Plate Heat Exchangers, Hot Water Forced Air Coils, Pool Heat Exchangers, Hot Water Unit Heaters, Pex Tubing, Circulator Pumps, Aquastats, Valves, Fittings, etc. Also stock complete line of Door Gasket Material for all Pellet Stoves, Wood and Gas burners, Don't see it listed Ask. SHIPPING Fast Next Day Shipping. Since many orders are 3rd party shipment, tracking may be delayed or unavailable. We will update you if any information is received. RETURNS Returns not accepted, unless DOA right out of box. Manufacturer's Warranties apply. Questions Questions, reach out to us via the message service.