FASCO Motors #1 motor asked for by Stove manufactures. Original replacement Dual Squirrel Cage Single Motor Room Air Convection Fan for Hearth & Home Technologies manufacture of Pellet-Gas-Wood Stove and Built in Fireplace's. 115v - 1.3 AMP - 3000 RPM [no load] - 2400 RPM [full load] - FITS PELLET STOVE MODELS: Classic Bay 1200 Insert (only) - Castile B - Castile FS & Insert - Contour - Santa Fe FS & Insert. FITS WOOD STOVE MODELS: 1900 FS - 2100 FS up to year 1995 - 2100 Millennium ACT - 2100 Millennium ACC - 21M ACC - 2700 Insert built before Nov. 2009 - 3100 Millennium ACC - 3100 ACC - 3100 FS Pre ACT - 3100 FS ACT - 4100 FS - 4300 FS Pre ACT - 4300 Millennium ACC - 4300 Millennium ACT - 4300 ACT - 43ST ACC - 5700 ACT - 57 ST ACC - 7100 Built In Fireplace up to Serial # 0091588198 this Fireplace takes 2 fans - Cape Cod - Cumberland Gap - Isle Royale - Yosemite FITS GAS MODELS: Castile - Columbia Bay FS & Insert - DV400S - DV400SL - DV40 Step Top - DV125 - DV130 - DV132 - Garnet MBK - Garnet T - GND Bay GB40 FS - GNB Bay Insert - GB40-I up to Serial # 253376 - Hudson Bay FS & Insert - Remington QFP30 - Remington QFP40 - Sapphire - Topaz. This Fan is Thermally Protected for your SAFETY. Manufactures OEM Part # 812-4900 & 812-4540 If your owners manual shows either one of these part #s this is your fan.