Dometic | 12V Furnace Blower Motor | 30136 | Atwood HydroflameDometic Atwpood Hydroflame furnace motor is attached to the blower wheel and the combustion air wheel. Once the control board sends power to the motor, it will start operating which will move the shaft attached to both wheels. The movement of both wheels will cause air flow. SKU: 30136 Power Source: 12V DC Motor Body Dim: 3" Diameter x 3 3 8" Long Shaft #1 Dim: 1 5 16" Long x 5 16" Diameter Shaft #2 Dim: 5 8" Long x 5 16" Diameter