Belt Drive Vs Direct Drive Attic Fan

I think that the belt drive blades can turn slower with a deeper pitch than a direct drive.

Belt drive vs direct drive attic fan.

However a belt drive fan has power transmission loss due to the friction between the belt and sheaves and due to the drive shaft bearings. Cool attic belt drive whole house fan 36in 9 700 cfm model cx36bd2spd. Additionally they re easier to clean. I had a belt drive with a two speed motor years ago.

Unlike belt driven fans there s less energy loss because there s a reduced amount of friction as the fan operates. This is because of the fact that the amount of friction is greatly reduced in case of this fan when the fan is operating. Belt drive fans are quieter than direct but still noisy. Belt drive whole house fans that use an integrated pulley provide for a smoother and quieter operation than direct drive fans.

Direct drive units are also louder than their. Also make sure your unit has a welded frame so it will not loosen up and begin to squeak. This ventamatic whole house direct drive fan offers an efficient way to trim cooling costs while keeping your entire home more comfortable. It offers an efficient way to reduce cooling costs while keeping your whole house more comfortable.

Belt drive 2 speed whole house fan is designed for houses with 1 800 sq. When compared to belt drive fans which require belts sheaves and bushings direct drive is just plain simpler and maintenance folks tend to lean toward direct drive for daily maintenance. Direct drive fans require fewer parts and thus usually less maintenance. There s also no belt residue and these fans cost less to maintain generally speaking because belts don t wear down and break.

You have a fan a motor and maybe a coupling. Direct drive fans have no power transmission loss since the propeller is directly connected to the motor shaft. Also may be more expensive when similar direct drive and belt driven fans are compared side by side. That would be quiet but would look like a mess from outdoors.

Unlike the belt driven fans in case of a direct drive fan there is lesser energy loss. Generally speaking the more blades a fan has the quieter it will be. Ventamatic whole house fan 24in 3092 cfm belt drive model cx24bd2spd 9. It features a powder coated finish for weather resistance.

That pulls more air with less fan noise. Lesser flexibility compared to belt driven fans.