Solar Fan Installation Guidelines

The Solar Powered Vent Fan and Kits are primarily used for gable installations although they can also be roof mounted, which will require much more materials and skill level. If you plan to roof mount the fan, we suggest that you retain a licensed contractor.

The fans require an opening equal to the ring diameter. The opening should be where the current gable vent is, or at the highest practical point on the gable. These fans have 4 bolt down pre-drilled holes to anchor them to 2" x 4" wood studs. The spacing between the 16" or 18" spaced studs will be filled with 2x4s until the opening matches the ring diameter. The fan is bolted to the 2x4 frame work from the inside. That will set the fan flush with the 2x4 framework. To the frame work, a 1/4 mesh screen should be installed to keep small animals and debris from entering the attic. In front of the screen, a shutter, either stationary or movable, should be installed.

Note:
1)When these fans are installed on greenhouses, be sure that the framework is of adequate material and strength to support the fan's weight and possible vibration.
2) If a temperature controller is installed, it should be inside of the vented space so that it senses the interior temperature.
3)If no controller is installed, the fan will turn on as soon as there is enough sunlight, and will shut down when sunlight decreases sufficiently.
4)These fans do not require, nor is it recommended to be used in conjunction with batteries. Daylight operation only.

In the case of the OVF outhouse fan, it requires a standard 4" vent pipe that it will be slipped over. It should never be made to slip into the vent pipe! If for some odd reason, the pipe diameter is too large for the fan, then slit the ring carefully to allow expansion and allow the fan to set over the pipe. Seal the ring to pipe gap with roofing adhesive.

For nonstandard installations in locations other than wood gables and roof, you are on your own to devise the correct installation procedure. We do not provide any information on the methods or materials required.

The solar panel(s) is set on aluminum channels in a 'H' shape then attached with two shorter channels to another set of channels to anchor to the roof. The solar panel must sit off of the roof at least 4" to 6" to allow cooling air to flow under it to prevent heat buildup. The spacing will also allow adjustment of the panels to face them directly south or southwesterly at the proper angle to allow maximum sunlight to reach the panel for the longest period of the day. How the aluminum channels are set up will depend on the roof slope and whether the slope faces south, or east or west.

All material to install the fan are purchased by the buyer at a local hardware store; i.e.; cable, 2" x 4" studs, 1/4" mesh screen, shutter, aluminum channels, nuts and bolts, screws and nails. The shutter is either purchased or made to fit the opening. If you plan to have a longer distance between the solar panel and the fan, then that extra length of 20 gauge cable has to be purchased also.

As in the past, there will be installations that will not be as simple as the basics above, and for which we cannot provide assistance. Think through what you have to do, what you have to purchase before you order the fan/kit.

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