House Fan Controls

Showing an example of the controls for a 3 fan system. One fan in each bedroom. This setup allows the doors to the bedrooms to be closed at night and each room zoned or controlled separately.

QC-1500 Running In Bedroom

Here I am showing a small fan (QC-1500) installed in a small bedroom. Imagine 60 degree nighttime air being pulled through the window like this all night, or until it gets too cold! This is why the fans are put on a timer, so it can be set to go off before it makes the room too cold.

Quiet Cool Whole House Fans Operating In Great Room w/Cathedral Ceiling

This house was originally designed and built for a whole house fan in the late 80’s. The fan was located in this “fan room” which had vents on each side into the living space. However the fan was the older “helicopter” type house fan and it was not powerful enough to be effective and too loud to be used consistently. Our company had done several renovations for these customers and they asked us to help them find a system to keep the house cool. The house has no other attic space so it was a challenge to design any system for it. Two different mini split AC systems were designed and quoted with significant price tags. Having experience with Quiet Cool house fans we felt confident we could keep this home cool, quietly. But with no attic we needed to be creative. In these videos you can see how we solved the challenges and how effective the system is. All at a cost 40% less than what an air conditioning system would cost to install and which will be considerably more efficient, costing less to operate. This was the launch of Naturally Cool VT. Being our first video’s, please excuse some of the less than perfect voice commentary đŸ™‚

House Fan Chamber

This house had no attic for a house fan to be placed in. Naturally Cool VT created a “chamber” for the Quiet Cool Fan QC-4700 to go into along the outside wall of a dormer. The fan vents to the outside at the underside of the rake portion of the soffit with a 7 foot section of ridge vent mesh replacing the soffit boards. The wall was built with 3/4 plywood with a layer of 2 inch foam board on each side of the plywood for insulation, sheet rock covers the wall side. The brown section is a 1/2″ MDF access panel to the fan which has 2 layers of foam behind and fits flush to the sheet rock and is sealed lightly with caulk to keep it airtight. There are two spaces inside the chamber and 3 dampers are used. One damper/vent connected to the fan duct which is placed between the two vent/dampers that vent into each room. If one room’s door and windows are closed, the fan will only draw from one room. Open the doors to the bedrooms and it will draw from the rest of the house.

House Fan Chamber Cools Two Rooms With One Fan

This house had no attic for a house fan to be placed in. Naturally Cool VT created a “chamber” for the Quiet Cool Fan QC-4700 to go into along the outside wall of a dormer. The fan vents to the outside at the underside of the rake portion of the sofit with a 7 foot section of ridge vent mesh replacing the sofit boards. The wall was built with 3/4 plywood with a layer of 2 inch foam board on each side of the plywood for insulation, sheet rock covers the wall side. the brown section is a 1/2 MDF access panel to access the fan. There are two spaces inside the chamber and 3 dampers are used. One damper/vent connected to the fan duct which is placed between the two vent/dampers that vent into each room. If one room’s door and windows are closed, the fan will only draw from one room. Open the doors to the bedrooms and it will draw from the rest of the house.

Calm Day, Breeze at 10 Feet With House Fan

Here is a similar video to a previous post. They day became even more calm yet I could feel the breeze in many places in the house. I felt this was a great example to show. Sorry my commentary was not better planned.

Air Pulling Through Window

Here I show the cathedral ceiling room with the Quiet Cool whole house fans running to demonstrate the airflow being pulled through the window on a calm day.

Fans Running Enclosed

Here is the second video now showing the two Quiet Cool – 4700 fans operating once they are enclosed in the “attic chamber” we created for this space. This home was completely vaulted. It had no attic other than this small room that was originally built into the house for the use of a house fan. The previous fan was the older loud “helicopter” type. it was too noisy and not powerfully enough to be effective for the home.

Two QC-4700 Operating

Two side by side QC-4700 whole house fans operating first on low then on high speeds. This was recorded to see them working and document the sound prior to enclosing them. You may hear a slight rattle at one point. A screw on a fan protection grate needed tightening and the sound was eliminated.

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