How can a smaller blower produce more CFM than a larger blower?
A number of variables affect the CFM testing results conducted by AMCA. The distance the blower is set back away from the entrance. Engine rpm can vary up to 15% according to the manufacturer. The engineering of the impeller to a given engine horsepower and rpm in regards to the diameter of the blades, the number of blades, the pitch of the blades, and placement of the blades within the shroud are just a few of the factors that can influence the performance of the blower. The profile of the engine behind the intake area of the shrouded impeller is another factor. Tempest continues to re-engineer and test our blowers to gain maximum performance from each blower we manufacture.
