Biowind 4"x10" Smart AC Vent Cooling Booster Fan w/ Thermostat & Remote Control

leroy_sunset

Nov 29, 2025 5:15 PM

1.9K Comments

Joined Jun 2012

leroy_sunsetNov 29, 2025 5:15 PM

1.9K Comments

Quote from fearziz

:

ghetto setup and not feasible for ceiling vents, which is 99% of homes

Someone has a slab home in the south. A lot of people have floor joists and their ductwork in the floors.

I speak from experience, sometimes you can't get the pressure you're looking for at the end of a house with a one zone setup, regardless of what you do with duct run sizing. These vent fans will help a little, especially with cooling.

airj1012

Nov 29, 2025 5:24 PM

535 Comments

Joined Jul 2013

airj1012Nov 29, 2025 5:24 PM

535 Comments

Quote from carlson03

:

It works in ceiling vents, I have two different branded ones in ceiling vents, held up with screws. Have them on a smart plug each that is connected to my smarthome and kicks on when heat kicks on or ac kicks on,and off when the furnace turns off.

How far are the power cords running to the closest outlet? Think that's what the original comment meant. Such a long run for the power cord, starting with the ceiling. Not easy to disguise.

c3688t

Nov 29, 2025 5:24 PM

864 Comments

Joined Apr 2008

c3688tNov 29, 2025 5:24 PM

864 Comments

Quote from coltrane69

:

You're not wrong about this, but you could buy four of these for the price of an HVAC service call. And Unlike an HVAC service call you can return these to Amazon if it doesn't yield any appreciable improvements. I'm not advocating that these devices will be a cure all for people that have balancing issues, but for $25 it's much cheaper than calling a Tech out to tell you that everything's wrong, and that it'll cost $10k to fix it.

Good reply. We bought one of these about a year ago and love it. We use it in a back bedroom under a desk where it's inconspicuous. Runs on low, almost impossible to hear, and moves a bit of air so the room isn't stale. When the A/C turns on, it senses the temp change and kicks up the speed to help pull a little extra air back there. Bought one for my dad and he really loves his. Might not be for everyone. But where I live there is no such thing as a $100 HVAC service call.

coltrane69

Nov 29, 2025 6:01 PM

1.6K Comments

Joined Feb 2007

coltrane69Nov 29, 2025 6:01 PM

1.6K Comments

Quote from leroy_sunset

:

Someone has a slab home in the south. A lot of people have floor joists and their ductwork in the floors.

Lol,, that poster obviously has a very narrow exposure to different HVAC configurations. Hopefully this one doesn't blow his mind…

😂 some of us northerners actually have something that's called a finished basement. These so called basements can sometimes feature recreational areas, bars, bedrooms, home theaters, walk outs, and real windows. Even after all that cool stuff, we can still cram our mechanical areas in there. The mechanical areas that house our furnaces, hot water heaters, water softeners, electrical panels, ductwork, and plumbing.

The basement Is a wonderful concept, you can basically work on any mechanical system in your house standing upright, or on a ladder in your basement. Not a slab, not a crawl space, not in a hot attic, and not working on your back in dirt, or having to excavate plumbing problems in a slab, it's a basement it's fantastic.

Finished basements are wonderful. But evidently I should be trading my finished basement and floor vents in, so I can be a cool guy like 99% of the world that has ceiling vents. 😂

Last edited by coltrane69 November 29, 2025 at 10:04 AM.

2

knmurth

Nov 29, 2025 6:13 PM

51 Comments

Joined Aug 2015

knmurthNov 29, 2025 6:13 PM

51 Comments

Can we use them on the floor?? My vents in the bedroom are not on the walls but on the floor.

1

Impulse_shopper

Nov 29, 2025 6:20 PM

1.1K Comments

Joined May 2019

Impulse_shopperNov 29, 2025 6:20 PM

1.1K Comments

lol I love that 3rd image.

delala123

Nov 29, 2025 6:22 PM

171 Comments

Joined Apr 2013

delala123Nov 29, 2025 6:22 PM

171 Comments

One of the rooms gets little A/C air because it is farthest from main A/C unit. For this deal, only smallest size (likely least useful) fans are on sale for biggest discount. The size I need is 6x10 but price is about $50 (5% discount). Instead of spending $50 on a temp fix, I would buy a small Windows A/C for about $100 and permanently solves the issue.

T-Pez

Nov 29, 2025 6:25 PM

506 Comments

Joined Jan 2011

T-PezNov 29, 2025 6:25 PM

506 Comments

It isn't always about improper airflow. My son keeps the door off his room closed and it is on a corner of the house that never gets touched by the sun. While the rest of the house stays warmer naturally, his gets and stays cooler even when getting a proper ratio of the air volume.
Another case is my brother-in-law whose home office is in a small room that he has to keep closed much of the time while in meetings to keep the sound of the wife/kid/dog out. When closed up in that small space, his computer equipment alone is enough to heat the room fairly quickly.

m2go

Nov 29, 2025 6:46 PM

63 Comments

Joined Oct 2011

m2goNov 29, 2025 6:46 PM

63 Comments

That wire does look a tad ghetto, and it's much more visible on the ceiling where you also have to counteract gravity. any practical advice/ solutions for ceiling installations?

ISurfTooMuch

Nov 29, 2025 7:03 PM

475 Comments

Joined Jun 2014

ISurfTooMuchNov 29, 2025 7:03 PM

475 Comments

Quote from knmurth

:

Can we use them on the floor?? My vents in the bedroom are not on the walls but on the floor.

Yes. That's how I'm using mine.

Having said that, don't expect miracles. These things help, but they can't create airflow that isn't there. Also, they generate a bit of noise on higher settings. Kind of a white noise and not unpleasant, but just know that it's there.

2

redmark12345

Nov 29, 2025 7:30 PM

220 Comments

Joined Nov 2014

redmark12345Nov 29, 2025 7:30 PM

220 Comments

Lots of people in here thinking way too hard about these.

My basement duct is at the far end of the house from the furnace, and it's shared with the bathroom above so the basement gets pretty weak airflow.

One of these completely solved the problem. It just equalized the airflow between the two rooms. The thermostat is easy to set up. Haven't had to touch it since the day I put it in.

If you don't plan on using it for months on end, unplug it. It's not rocket science.

1

sc2

Nov 29, 2025 7:44 PM

2.4K Comments

Joined Jul 2007

sc2Nov 29, 2025 7:44 PM

2.4K Comments

Quote from firebirdude

:

It's just a fan that sits in the register? So it increases air flow into that room, but steals it from everywhere else? Because it doesn't create more flow from the HVAC blower...

Not sure if anyone else responded, but yes.

Needs to be a niche use case. I have one room that's at the end and it doesn't get the same air blow as registers in room before it (blame lower tonnage or poor routing or whatever), so this helps "suck up" and "steal" some of the flow for the register at the end, to help compensate.
But yes, it does not generate anything more than that.

Chae

Nov 29, 2025 7:48 PM

893 Comments

Joined Aug 2004

ChaeNov 29, 2025 7:48 PM

893 Comments

Quote from Johnybrk

:

These work great for houses that have 1 zone or even 2 zones for rooms that don't get cold or hot enough before the main system turns off. I have 2 of these in 2 different rooms. They have built in temperature sensors, that can continue working after the HVAC system has shut off, still pulling in cold or hot air that's in the register. They are super quiet and pretty slick aside from the cord that hands to the side, i push mine under the baseboards, so they stay out of the way, i do wish they were flat as well though.

A lot of smart thermostats does exactly that. Switch over to fan for a while after heating or cooling.

carlson03

Nov 29, 2025 7:59 PM

4.5K Comments

Joined Jan 2011

carlson03Nov 29, 2025 7:59 PM

4.5K Comments

Quote from airj1012

:

How far are the power cords running to the closest outlet? Think that's what the original comment meant. Such a long run for the power cord, starting with the ceiling. Not easy to disguise.

Oh could be, I just ran it down the wall for now...my goal is to use the barrel plug to ethernet adapters and run them thru the attic and thru the wall to hide them...but too lazy to go into the attic and do that

Misio

Nov 29, 2025 8:22 PM

178 Comments

Joined Mar 2010

MisioNov 29, 2025 8:22 PM

178 Comments

I tried one out but ended up returning it as it made absolutely no difference at all. The fans are kind of bulky so overall the airflow is restricted due to that. So while the fans push air through slightly quicker I think the net effect is that it's the same as without. I wonder if the people with positive reviews are just having a placebo effect? In the end I got an HVAC installer to reconfigure the ducts from the attic and that has really improved airflow. I wish there was a shortcut that worked but I don't think there is.

Biowind 4"x10" Smart AC Vent Cooling Booster Fan w/ Thermostat & Remote Control

$25

$38

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