"The Bennett "
Helps you save money with lower energy costs

• Immediately eliminates the chimney effect (sometimes called stack effect or back draft) in the garbage chute and changes the building envelope
• Detailed engineering studies done for us by the University of Western Ontario have shown that significant energy savings are immediately realized and installations in place are authenticating the studies results. A Study by the Engineering Department at the University of Western Ontario has shown that you can expect up to 18 percent savings in heating costs, and up to 10 percent savings in Air Conditioning Costs. The larger the building the more dollars you save, and your payback may be just a few months! The Engineering Report has provided us with a spreadsheet to calculate your savings, if you need further information, contact us.

The Theory:

High-rise residential buildings use a 24" to 28" garbage chute (open at the bottom and the top) that allows the garbage to free-fall into a bin or compactor from access doors at each floor. This chute creates a 24" hole in the building allowing the chimney effect to draw heated air out through the roof top opening.

"The Bennett" is an Energy Savings System

The key component is "the Bennett" - the only device specifically listed by Underwriters Laboratories for use as a garbage chute closure. "The Bennett" provides a full 1-1/2 Hour protection rating and as such satisfies the building code requirement for garbage chute closures in all jurisdictions throughout North America. "The Bennett" closes and seals the garbage chute except to let the garbage pass through.

This simple action ends the "chimney" or "stack" effect of the garbage chute. Until "the Bennett Solution's" introduction, design criteria for high-rise garbage chutes have been minimal at best. All open chutes cause an upward moving draft of air that:

• Overcomes exhaust fans in any garbage room and draws the odor of garbage up into the chute and building
• Draws heated or air-conditioned air, out of the building through open disposal doors or - by simple heat transfers through the closed doors.

"The Bennett" stops the flow of air from moving up the chute, eliminating the heat or cooling loss.

For an estimation of the energy savings on a building contact us at joleary@garbagechutecontrol.com

Definition - The Chimney Effect:

A phenomenon, that occurs whenever a temperature differential exists between the interior and exterior of an enclosure. In the garbage chute of a high-rise building these temperature differentials are present, causing air to flow up through this shaft creating the chimney effect. This situation is further compounded by the venturi effect, caused by the wind at the top of the building, and the height of the building.