Register Booster Fan, Fits 4” x 10” 140CFM with Remote Control, Smart Vent Fan Booster with Adjustable 10-Speed Control, Quiet Heating Cooling with Thermostat Control for Wall, Floor

These vents are awesome. We have a couple rooms that tend to be warmer in the summer and there is a significant difference in temperature using these. Highly recommend! Looking forward to seeing how these help in the winter.

Easy to set up, works great with or without remote and you can put into constant, heat activated, or cooling activated modes. We have two of these in the upper floor of our house now to help get AC where our HVAC distribution is kind of lacking. Fan speed above 8 or so is a little louder, but you'd hardly be able to hear fan speed 6 in your living room and it puts out a good amount of airflow

Works well! I have a second story bedroom and it is always much warmer than the main level in the summer. I bought two of this product (one for each register in the room). I haven’t measured the actual temperature difference, but it is significantly noticeably cooler since installing these. My only complaint is that they come set to Celsius, and the steps for updating to Fahrenheit did not work on either unit. They did come with a remote that also has a button for changing between the temperature scales but I have not bothered to try those. I just set-up the fams to run using Celsius temps

We have an older home and do not have the money to redo duct work when two of our rooms are not getting proper air flow. We bought these as a solution, and they have been perfect. The instructions were easy to follow for setup. You can change the power level, fan noise, cooling, and heating.

I installed these last year in the two bedrooms of my upper floor, which tend to get very hot and uncomfortable. I hoped they'd help move the AC up from the lower floor. I wasn't convinced I could tell a difference, though. The LED light from the register really bothered me at night, too. This year I decided against using them during the worst of the heat dome, since our electical rates have increased, so I unplugged them and just avoided the upper floor and slept downstairs. So for three days the temp in my bedroom rose to 84 deegrees F. I finally decided to plug the registers in on the fourth day of the heat wave, and leave them running through the next several days of it, and was dismayed to find the registers made absolutely no difference. If anything, the temp in the room was worse, because even less cool air could circulate through the machinery of the boosters. I was terribly disappointed. I feel I really wasted my money.

We have weak air flow to some of the upstairs bedrooms and this device helps boost the air flow. One thing to consider when ordering g these is the size register they are going to be fit into. Most of ours are to big for this size booster.

nice for the guest bedroom because it is always chilly or hot.

Second one purchase. I love these. We recently converted our addict into a bedroom and this helped cool down the space. We may need to add another one but with only one, we can feel the difference.

Works great. Pushes cold air up to the second floor adequately