Suncourt ThruWall Room-to-Room Transfer Fan — Quiet Through Wall Vent Fan Improves Air Circulation Between Rooms 100-275 Sq. Ft. | 10’ Power Cord, 2-Speed (TW408)

Purchased this fan to get warm air from a hallway/main living area into a bedroom on the northeast side of our house. That room has two exterior walls and is always cold in the winter. Our house is heated with hot water baseboards, and this room seems to be on the end of the loop in addition to being on the coldest side of the house. Because framing around the door prohibited me from installing this fan over the door (and there wasn't any other wall available to go directly through), I had to install 8" rigid ducting that went from the hallway, through a cabinet in the adjacent bathroom, and into the bedroom. There's about 36" of ducting total. All connections were made using sheet metal screws and foil backed tape to ensure no warm air leaks into walls - which could lead to condensation and mold/mildew. According to the size/performance chart in the instructions, this fan is for is almost too big for the room (about 100sf). So I use the fan on low and left one small cap and one large cap on, as the directions indicated. I think having additional ducting actually works to my advantage, since the fan's ability to move air is somewhat diminished by having to 'pull' air through that duct. I don't have a traditional install to compare this to, but I will say that the fan is working fantastically for my bedroom. Warm air enters the top of the room and pushes the cold air back into the living area through the gap between the bottom of the door and the floor. The fan is plugged into a Lux Win100 thermostat so it turns on only when the thermostat calls for heat. The fan noise is very low, in my opinion. Just gentle white noise. Dings - - Installation instructions. The instructions make it seem like utmost precision is required when cutting holes, but that's not really the case. I wouldn't advise anyone to be purposefully sloppy, but a little a little slop is ok. - More importantly, I was not impressed by the way the inlet cover is supposed to mate to the flanged sheet metal sleeve. It looked like the flange was supposed to mate with the plastic housing, but the sizes don't match. So you're left just kind of 'making it work'. That's not the end of the world, but some kind of snap fit would work much better. I almost took a star off for that, but it's not a performance issue. All in all, this is a fantastic solution since it works great and it's way cheaper than buying and running a space heater.

Works great! Easy install in typical interior drywall structure. Very quiet and moves air from equipment closet well. I modified to reverse the flow, so it blows away from the cord. How i did it: pop off the grill cover with the switch (use narrow flatblade to disengage 3 clips), remove fan blade (it pops off, pull at the hub so you don't break blades), remove two bolts holding motor to bracket, slide out armature (drive shaft), rotate motor frame 180⁰, reinsert armature (long shaft away from grill side, to accept fan), snap on fan blade, snap on grill cover (adjust wires as required to avoid contact with moving parts, ziptie if needed). Do at your own risk (I work with mains power often, but no wiring is needed here)!!! Also, light machine oil on bushings. No clue how/if this will affect longevity.

The fan is great, Works great and looks good. You can hear the noise at high speed setting, but not much an issue for us, since we only us it to blow cool ac air into other room at the day, during night we use the low setting. At low speed the noise is still there, but not too loud that you can't sleep. The construction is all metal. so it should last long. Installation is simple, just cut a 8" hole into the wall and screw it in. Just make sure not to cut in between any stud or wiring.

We ordered 2 of these fans to install in the walls between some rooms in our basement. It is surprising the amount of air they pull in. The fans are also very quiet. I highly recommend this product.

After reading many reviews, I purchased this fan for use between our living room and den. We live in a standard 1970's ranch style house. Our living room has a pellet stove facing the rest of the house, but our den is a converted garage directly behind the living room, through an opening in the kitchen that connects both rooms. So, the pellet stove blows air in one direction, towards the bedrooms, and generally stays way too warm right around the stove itself, but the den, and kitchen don't normally get warm at all. When installing, I used a cheap stud finder, and found a space in the upper corner of the wall near the pellet stove and popped a hole through to the den as instructed. Installation took about 1.5 hours with a handheld drywall saw and following all instructions. Make sure you have an outlet *on the exhaust* side near where you plan on installing the fan. Once installed, I did a quick power-on test and saw it was working fine, but didn't have the pellet stove on to see any real difference. With the location of my installation, the power cord would have been just hanging out in the middle of the wall in our den. That looked horrible, but after reading one of the other reviews, I decided to cut the end of the power cord, and pop a hole through to the attic and hard wire it. This is a lot easier than it may sound. Just unplug it and cut the end of the cord a few inches away from the male plug end. I used a long 3/8" drill and drilled through the top of the drywall framing straight into the attic. Found the closest junction box, ran the wire nicely under any boards in the way, and hardwired it there. You'll need to cut out a little notch in the drywall for the extra space to feed the fan cord into the wall. Then just wrap it around the metal housing. After our first use, it was immediately apparent that the fan made a huge difference. Typically, the area in the living room near the pellet stove is almost uncomfortably hot, and the surrounding areas are noticeably cooler the further you get from the pellet stove. Walking into the kitchen was usually a slight temperature change, and walking into the den was literally a blast of colder air as you stepped down. Running the pellet stove with the fan on changes everything. Both the kitchen and den are just about the same temperature as the living room, and feel a lot more cozy from the heat from the pellet stove. It seems to have the same effect whether you run it on speed 1 or 2. The one negative comment I'll add is that the fan is a bit louder than I had hoped. Nothing too crazy, but adds a significant amount of white noise to the room.

My office closet is converted to a "server closet", with a few servers and various pieces of network equipment. They generate too much heat to allow passive cooling from underneath the door, but not enough heat to have a dedicated A/C vent or standalone A/C unit. This fan helps pull air through the office, under the door, and up to the top of the wall where it dumps the excess heat into the HVAC room. Even on Low, it pulls more than enough air to keep the closet temps consistent, and pulls some extra air into the office. Helpful when I'm pushing my desktop hard while gaming. The fan was easy to install, and I appreciated the convenience of a standard plug instead of monkeying around with electrical wiring. I would have liked the option, maybe on a different model, to have an inline-switch somewhere near the plug end. Instead of on the unit itself. -But I don't adjust the fan speed often enough (hardly ever, actually) for it to be an inconvenience. The fan is rather quiet, and the only semi-annoying sound I get is a bit of humming resonance in the adjacent hallway. But that's because of the architecture of the house, not because of fan vibration or imbalance, and I don't sit in the hallway so it's a non-issue.

I bought this, like many others, for moving air from one room to another. It’s an OK unit. It doesn’t move much air, but then again it’s only 8 inches, not a 20 inch box fan. I did not find it too noisy, but moving air is not without some sound. The motor is just your normal cheap electric motor that you would find in any cheap electric fan in your local discount chain store. You know, the ones where the fan blades slow, then stop, because the motor shaft is not oiled. Taking it apart and oiling the shaft usually gets it going again, until it freezes up again. Rinse and repeat. For my purposes, the air movement was flowing the wrong way. I wanted the switch facing the destination room i.e. discharge side. The standard orientation is the intake is from the switch side. I also needed the power cord on the intake side because that’s where the convenient power source was. So, I either had to send it back, or, re-engineer the guts of the fan to suite my needs. I chose the re-engineer route, a) because I didn’t want to have to send it back, and b) with the discharge air and power cord configured the way I needed it, the fan would suite my needs. So… over to the workbench I went. It wasn’t too bad to change the configuration, but I’m handy, and have tools. It took me about 30-minutes to re-configure to suite my needs. I installed it in a door, with slack in the power cord to allow easy opening and closing of the door, however it is designed for through the wall use as it would accommodate up to about a 6-7 inch thickness. Why in the door… if I decided I no longer needed the air movement between the two rooms, it would be easier to replace the builder grade door then repair the wall. So… all in all, had there been a better alternative, I would have returned it, but that was the best I could find for my situation. Your mileage may differ. Now I am looking for something to cover the fan when not in use, as to not allow the air to move through the fan when it’s off.

I have a pellet stove that I use to heat my house. The stove is in the lower level of my tri-level. I installed this fan above the entrance to that room to move the air out to the upper levels. It does a god job, doesn't move as much air as the box fan I was putting up on a ladder in the door way, but it also doesn't block the doorway. It's not as noisy as the box fan on high but it's not completely quite. The noise level is not bad though. The installation instructions were good, the cord is about 10' long, so I was able to run it inside the wall to an electrical outlet where I hard wired it in. The fan has been running 24/7 for the last 3 weeks. I like it and it does what I need it to do.. It’s now 2020 this fan has been installed 3 weeks shy of 5 years it runs from the beginning of November (+/- 2 weeks) to the end of March (+/- 2 weeks) 24/7. I don’t know how many hours that is but it is a lot. To me that’s a quality product.

Nice and quiet and easy to install...running great so far (2 weeks ish).

Works well

Installed it between the living room and bedroom to distribute the cooler air. Works great. Very quite.

Bought one of these, installed it and when we turned the power on, the fan inside the unit flies loose of the motor shaft. Called Suncourt and they tell us to return it because this sometimes happens. Second unit arrived today and re-installed. Again, turned the power on and the same thing occurred. There is no glue or fastener between the fan and the shaft on the motor. Really poor design Suncourt.

this fan is quiet enough for our family room and moves air heated by our heat pump into the room. happy and buying another for a new addition going up. (we use it mostly on the lower setter (which is more than adequate for our small rooms)...high setting sound is more invasive.