this post was submitted on 25 Jun 2025
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We have to buy a window unit for our house. We have Central AC but it's not keeping up and we can't afford to upsize it right now. So until then I'm researching which window units to buy. Any advice or anything to cut through all the marketing spam and AI copy that I have to wade thru?

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[–] notnotmike@programming.dev 23 points 11 hours ago (8 children)

All I can really say is to avoid the floor models, since they put the hot part of the conditioner inside your home, thus have to work a lot harder

See Technology Connections (Piped) for an informational video

[–] psycho_driver@lemmy.world 2 points 10 hours ago* (last edited 10 hours ago) (7 children)

My experience with these units is that they're horribly unreliable too. I worked in an industry where we'd use these for temporary or emergency cooling for server rooms and I don't know if I ever saw a model last more than a year. A lot of window units are pretty flaky too, unfortunately, but you'll probably at least get 2-3 years out of one.

[–] Sorrow3527@lemmy.world 4 points 10 hours ago* (last edited 10 hours ago) (2 children)

Well most of the world lives in apartments where only floor* units are an option so they do exactly what they should. Ofc it's less efficient if the hose is uninsulated. But that's fixed with 20bucks and some tape

[–] socphoenix@midwest.social 2 points 8 hours ago (2 children)

Even renting a house it’s in my lease I can’t use a window unit. Which sucks because our swamp cooler outputs into the living room in a way that makes it very difficult to get its air into the second bedroom.

[–] bobs_monkey@lemm.ee 2 points 1 hour ago (1 children)

What's their reasoning on no window units?

[–] socphoenix@midwest.social 1 points 1 hour ago

I’ve been told this everywhere I’ve rented with different reasons ranging from it’ll put undue stress on the sill, liability (non first floor apartment would’ve been bad if it fell out), and the current ones thought was they tend to leak water which can damage the pain and then damage the sill.

[–] Sorrow3527@lemmy.world 2 points 6 hours ago (1 children)

Always depends where one lives, here in my case nobody complains about any noise so I just say fuck it we ball. friend of mine too has it even tho they don't want it, but nobody complains so we keep it

[–] socphoenix@midwest.social 1 points 5 hours ago

Long as the landlord isn’t regularly coming by the property for inspections then yeah fair

[–] notnotmike@programming.dev 1 points 3 hours ago

While insulation helps, it's fundamentally less efficient because the heat sync is inside the building and insulation isn't foolproof. And often these units are made of plastic, so they leak more heat into the house from the chassis than you'd expect. Even the best hose is less efficient than a window unit where the entire heat sync is outside the building

So while $20 and some duct tape helps a great deal, it definitely won't be as efficient as a window unit

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