Unlike the belt driven fans in case of a direct drive fan there is lesser energy loss.
Belt drive vs direct drive attic fan.
Also may be more expensive when similar direct drive and belt driven fans are compared side by side.
I had a belt drive with a two speed motor years ago.
Direct drive fans require fewer parts and thus usually less maintenance.
Ventamatic whole house fan 24in 3092 cfm belt drive model cx24bd2spd 9.
You have a fan a motor and maybe a coupling.
That pulls more air with less fan noise.
Generally speaking the more blades a fan has the quieter it will be.
That would be quiet but would look like a mess from outdoors.
It offers an efficient way to reduce cooling costs while keeping your whole house more comfortable.
Lesser flexibility compared to belt driven fans.
Unlike belt driven fans there s less energy loss because there s a reduced amount of friction as the fan operates.
I fantasized building a small shack outside my house and setting the attic fan in the shack and running a duct up to the attic and through the same vent as an attic fan.
Coming to the advantage of this kind of an industrial fan the biggest advantage is greater efficiency.
The cool attic 24 in.
Additionally they re easier to clean.
Also make sure your unit has a welded frame so it will not loosen up and begin to squeak.
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.
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.
It features a powder coated finish for weather resistance.
Direct drive units are also louder than their.
This ventamatic whole house direct drive fan offers an efficient way to trim cooling costs while keeping your entire home more comfortable.
Belt drive fans are quieter than direct but still noisy.
This is because of the fact that the amount of friction is greatly reduced in case of this fan when the fan is operating.
I think that the belt drive blades can turn slower with a deeper pitch than a direct drive.
There s also no belt residue and these fans cost less to maintain generally speaking because belts don t wear down and break.
Belt drive whole house fans that use an integrated pulley provide for a smoother and quieter operation than direct drive fans.