Rheem-Ruud 70-21859-04 2-Blades Fan Blades 8"DIA 19°Blade Angle 1/2"Shaft DIA CCW

The Rheem-Ruud 70-21859-04 is a fan blade for replacement and it is used in a number of HVAC applications particularly furnaces in Rheem, Ruud and possibly other manufacturers. part which helps in circulation of warm air within your house during the heating activities. Here’s how it is done. This fan blade is mounted on a motor shaft where the shaft rotates at a high speed. The blades angle is set to be 19° with the objective of ensuring that the air passing through the heat exchanger in the furnace is easier. The heat exchanger then warms the air which is then circulated through your house by the help of ducts and vents