Whole House Fan Without Cutting Joists

What is claimed is.

Go fan help. The dimensions of this fan are 27 12 x 27 12 making it a perfect fit for most attic or hallway vents. A method of installing a whole house fan in a ceiling without cutting joists in said ceiling said fan comprising an assembly including a fan impeller rotatable about a vertical axis a motor for driving said fan impeller bracket means for supporting said motor and a venturi said ceiling being supported by a plurality of generally horizontal parallel joists above. The wood beams that support the ceiling.

The air vent inc. I have installed 4 whole house fans you should get instructions that are quite good that come with it do not cut the joists you build around them with one in the middle. There are basically two types of installation.

This fan has two settings high and low power. To use any of these installations you must have two air passages one from the living space to the fan and another from the fan to the outside. Time about 4 hours to put.

Adjustable pre cut sleeving fits over the joists and around the fan to eliminate framing. It has a 24 blade with a direct drive motor and is activated by a pull chain. This particular fan had brackets which also aligned the fan over the center joist making placement easier.

A shutter assembly may be surface mounted to the ceiling below the joists. A whole house ventilator which can be installed without framing and cutting joists. 24 whole house fan 54301 produces 4500 cfm of cooling power and is one of the most popular standard fans on the market today.

The louver cover that gos in from the bottom has a built in panel that is where the joist is. No framing required as long the joists in your attic are typical of most homes 16 to 24 on center there is no framing required. The fusible link is installed in the attic between the whole house fan and its power.

I bought a tool that is a vibrating cutter that cuts drywall great sold in any hardware or home store. Many attic fan kits can be installed without making any carpentry modifications to the ceiling joists.