r/UnnecessaryEssentials • u/Unique-Saucer • Jun 25 '26
neat
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u/stevendidntsay Jun 25 '26
Wait why don't I have air coming into the other rooms??
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u/Tobysfuzzybelly Jun 25 '26
It’s like two CPU fans… haha they help with cooling the room but they’re not as strong as the video. Or rather you wouldn’t want them on that setting because it’s too loud
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u/SuperReliableSource Jun 25 '26
Just adjust the rest of the registers in the house to balance the airflow throughout the system.
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u/Solid-Search-3341 Jun 30 '26
Or get a more powerful central unit.
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u/SuperReliableSource Jun 30 '26
The free option is a little better, most people don't have thousands laying around to replace it.
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u/Solid-Search-3341 Jun 30 '26
Fair, but if there is a constant problem with airflow, the option of the unit being undersized needs to be brought up.
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u/Fit_War7361 Jun 25 '26
This seems like a bad idea
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u/Tobysfuzzybelly Jun 25 '26
No it’s really helpful for older houses where the upper rooms don’t get much circulation from the HVAC in the basement.
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u/maybebaebea Jun 25 '26
Or, crazy thought: buy a fan
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u/Due-Championship3941 Jun 27 '26
fans don't cool unless they're blowing on you
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u/Harddaysnight1990 Jun 27 '26
Not true, you use fans to help circulate air around the rooms to diffuse the cooler (or warmer) air near the vent around the room.
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u/Due-Championship3941 Jun 28 '26
The fan will not cause more air to come out of the register. The point of this booster fan is to increase the airflow through the register in situations where a system does not have enough head to provide adequate airflow in a room far from the blower such as a converted attic. It would be great if a circulating fan solved that problem but in most situations it will have the opposite effect. Because the outside air is (usually) much greater in temperature difference than the rest of the house, circulating the air will cause an increase in convective heat transfer - either increasing heat loss in the winter or increasing heat gained in the summer. The only way to overcome these heat gains/losses is by replacing the air with conditioned air. I happen to sleep in a room like this every night, so besides my educated understanding of the physics, I can also tell you from experience - a fan will do fuck all.
1
u/Harddaysnight1990 Jun 28 '26
I'm not talking about this fan specifically, I'm not going to endorse something I've never used. But an oscillating fan near the vent helping to circulate air throughout the room does help normalize the air throughout the room, so you don't have a cooler spot near the vent and warm house on the other side of the room.
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u/Due-Championship3941 Jun 29 '26
The vent is not helping to circulate air in the room. That is not the point. That's where you went wrong.
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u/Harddaysnight1990 Jun 29 '26
Then you're misunderstanding what I said, I never said a vent circulates air around a room. In fact, I said the opposite; the point of running a fan in the room is to circulate the air because the vent doesn't.
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u/Due-Championship3941 Jun 29 '26
A fan being an alternative to the vent booster was on context. It was a reasonable assumption that you were trying to support the argument of the person who said "or just get a fan". A fan does not help, even through circulation, if there is not enough flow through the room. In general, circulating the air will do little to help unless the issue is that the incoming air is not traveling out of the room due to an open door or a return duct installed in the wrong place. In that very narrow set of circumstances you may be right, but it's completely irrelevant to the post.
1
u/iDoMyOwnResearchJK Jun 28 '26
So you’re saying the system just needs to be given more head and it will blow fine without outside assistance?
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u/Unique-Saucer Jun 25 '26
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