Case Studies

Over the years since 2008 we have sold several very interesting systems with different configurations that I think might be of interest to you. Many of our systems have used large 30 inch and 36 inch blades connected to multiple ducts pulling air from many rooms. Here are a few examples.

LONGMONT
INDIANAPOLIS
GUNBARREL
BRISTOL

.
.
LONGMONT
David in Longmont has a large home with bedrooms at both ends. He needed a large machine capable of pulling a lot of air. He chose a fan pulling 10600 CFM with a 36 inch blade and 4 duct connectors for 4 inlet locations. We designed a new duct collector box for this home to maximize air flow and minimize duct air resistance. Here is a picture of the two sides of the duct collector box bolted together.

The collector box was made in two sections so that it can be lifted up into almost any attic hatch. This box measures about 40 inches long, 20 inches wide and only 10 inches thick.

The belt drive machines have thin frames and a spring loaded, hinged motor.

The larger systems have belts that are spring loaded so that the belt tension is always perfect. This reduces maintenance dramatically.

.
.

INDIANAPOLIS
One of our first long distance installations was for Paul and Mary in Indianapolis, Indiana. Paul was sold on our speed control and infinitely variable speed motor. The third feature he and Mary liked was the portable remote on off control. He asked me to recommend an installer and I introduced him to Doc’s Electric.

.
.
GUNBARREL
David called  to ask about how to cool his large ranch home with bedrooms at both ends of the long structure. He first thought about putting in two systems – one at each end. After talking about how air will move from any part of the house to any other part as long as the doors are open, he decided to put in one 36 inch system. Since he is in cold country he also decided to really insulate the ceiling openings with the optional R60 dual dampers. I introduced him to VentMasters for installation.

.
.
BRISTOL RI
Chris writes “I would like to get rid of my window AC units this summer. I live in a modest sized ranch. 1200 SF total. Thinking of putting fans in the 3 bedrooms and living room.” I replied “I see you were on my web site. By saying “putting fans in” do you mean putting my ducts in? You would do well with my 3620 CFM fan with 3 ducts. It is a very fine infinitely variable speed direct drive fan with a blade with an 18 inch diameter. I can split the 18 inch duct into 3 12 inch ducts for the rooms. You don’t need a 4th in the living room since the bedroom openings will cool any room in the house.