Tjernlund AS2 AireShare Room to Room Transfer Fan with Multiple Speeds

I installed this in a room that has a wood burner. The room is 180 sq feet and blows into a room that is 295 sq feet. I hard wired it to a switch on the medium setting which is 95 cfm. I installed the blower about one inch from the ceiling in the room with the wood burner and the diffuser about 6 inched off the floor in the other. Its made a huge difference in balancing the temps of both rooms, plus more heat gets to the rest of the house. Both rooms are now comfortable where before, one was too hot and the other too cold. The medium setting gives off a soft white noise on the blower side and almost nothing on the diffuser side. I tried the low setting too and you could not hear it at all. Works well and does what its supposed to.

Would probably work well to transfer air from one small space to another. It is unsuitable to move a lot of cold air from a basement to an open upper level during the summer when the cold air from an air conditioner accumulates in the basement. Easy install. Matches up with a Honeywell TL9160AR wireless thermostat, although Honeywell will tell you otherwise.

Thus far I am glad that I spent the little extra to get the model with multiple speeds. Even on low it provides a good amount of air and is very quiet. At medium and high the amount of air is increased and so is the noise, but not to any unacceptable level. Installation turned out to be much easier than I thought, but if you are not familiar with doing your own electrical wiring, definitely hire an electrician to assist with that part, and if you're not comfortable with making sure there is adequate space between the studs and up the wall, definitely hire someone with adequate experience. The air vent does stick our 2 1/2 inches from the wall and is pyramid shaped, which isn't a problem in my application, but could be for some, so pay attention to that. For what it is worth, I am using a 3-way remote switch instead of a switch on the wall, and that is working well thus far. Also, I have two of these and the diffuser in the first was bent a bit an the seller promptly refunded the full purchase price after UPS picked it up and I was able to then use my refund to purchase another.

This was slightly harder to install because I put it in the wall between original construction and an addition so the wall was extra thick. I put the intake Pyramid near a vent in the original house. I opened the wall on the addition side and installed a metal frame duct from the output port to the exhaust. Now the quiet fan blows air into the addition. I put a power cord and plugged in to an outlet with a remote control device. Love it!

It was easy to install, great construction of the fan and the diffusers. I would definitely buy this again or recommend to someone else.just can’t say enough about it.