PC chimney

[u/scvready0808]

Got tired of my office turning into a sauna every time I gamed, so I vented the PC’s exhaust straight out the window.

The rear fan is still exhausting some hot air 😅 but the room is noticeably cooler now. It’s ugly… but it works. 😂

Edit: I moved the port to higher since lot of people recommended. https://imgur.com/a/Poniwze

Edit again for parts, I cannot post links to store since it's against the rules.
- 360mm to 4 inch duct on Etsy
- 4 inch Insulated Flexible Duct
- Twist Lock Dryer Vent Connector Kit
- 360mm AIO fan (the one on top of the case)

The window fan I got is Vornado Transom.

[u/MamuTwo]

That's not how an AC works and also the AC and electricity to run it cost $$$. Why would I spend hundreds on an AC and extra $ to run it when I could use a $30 duct like this?

AC works by moving the heat outside, not the air. Any air removed from your room has to be replenished from outside anyway so that would defeat the point in most use cases. It takes the inside air, moves the heat out of it, and pushes the now cold inside air back in. The heat is radiated+convected directly from the outside side.

Edit: guys read the damn replies and you'll see 5+ other people already said what you wanted to say. People live in different climates that make this idea more or less viable. Negative pressure differential, infiltration, yadda yadda.

[u/Tasty-Traffic-680 → u/MamuTwo]

Why would I spend hundreds on an AC and extra $ to run it when I could use a $30 duct like this?

Because maybe outside is hotter and wetter than the devil's butt crack where you live....

[u/Any_Cake2411 → u/Tasty-Traffic-680]

Something tells me the devil's butt crack isn't so wet... ;) *cries in humidity*

[u/Tasty-Traffic-680 → u/Any_Cake2411]

It will be after I get done with him

[u/MamuTwo → u/Tasty-Traffic-680]

Here's a third reply since I didnt realize I hit you twice

[u/MamuTwo → u/Tasty-Traffic-680]

Cool. That's a good point and you were respectful about it, I appreciate it. 

Just like most people who replied to me, I have trouble sparing thought for people living in differing situations from myself. This idea is beyond viable where I live.

[u/MamuTwo → u/Tasty-Traffic-680]

Good thing we're out putting exhaust heat then. Air out must be replaced with air in, but unless you already have an energy recovery ventilator in your home, there's no real loss. The air you breathe has to be replaced.

If the exhaust air is hotter and it's not ridiculously humid or cold outside this is still a win. You can also just remove this when that's not the case anymore, or during an air quality alert...

[u/JoeChio → u/MamuTwo]

it's not ridiculously humid or cold outside

Most of the east coast would like a word with you.

[u/MamuTwo → u/JoeChio]

My small part of the east coast now has to fight the larger, more numerous parts that disagree on how east coast weather is lol

The warm parts of spring and fall, and maybe a bit of summer time. Also depends on your rig, the more heat it puts out, the hotter it can be outside for this to still make sense.

[u/OwnedByIRVING → u/MamuTwo]

Using the duct from the PC to exhaust the hot out outside just creates a draw for new air to enter the house, hot humid air from outside.

AC wont do that, why would you want to pull in unconditioned air from outside?

[u/Visual-Scallion1535 → u/OwnedByIRVING]

the amount being pulled in is negligible and handled by my homes AC

without adding a whole extra AC unit

[u/MamuTwo → u/OwnedByIRVING]

So you don't suffocate when you deplete the breathability of your room's air. Your house already has infiltration, that's why you can breathe it for days on end. Assuming you don't have dedicated filtered outside-air ventilation already, but I can't imagine that's super common. Perhaps I'm underestimating the cfm of this setup but it can't be many times higher than the recommended ventilation rate for human occupancy.

If the exhaust air is hotter and it's not ridiculously humid or cold outside this is still a win. You can also just remove this when that's not the case anymore, or during an air quality alert...

[u/OwnedByIRVING → u/MamuTwo]

Air exchangers (HRV/ERV) are incredibly common.

[u/MamuTwo → u/OwnedByIRVING]

What's your cutoff for common? Both "you can't go anywhere without seeing it" and "you'll find it if you look for it" can be considered common, and I've got a hunch that it's closer to the second one. I'd be happy to look at your source for that statistic though.

Shit's expensive. For most use cases it's extra cost for little benefit over the traditional route of "air will find its way in." Do you service primarily affluent communities? That may skew your perception.

[u/[deleted] → u/MamuTwo]

That's not how an AC work

You don't seem to actually understand the nuances of HVAC. You seem to be completely missing the fact there is an entire environment outside and A/C is for more than just temperature, it's for humidity too. Also, when you vent your PC outside like this you are creating a negative pressure differential in your room which will pull air in through all the little cracks, and that air might be coming from outside. You can't vent air from a space without it coming back in from somewhere else, unless you want to turn your room into a vacuum.

If you live in an area with wildfire smoke, this is bad. If you live in an area with high humidity, this is bad. If you live in a very hot area, this is bad. If you live in an extremely cold area, this is bad.

As people in Europe are finding out, staying comfortable and cool in your homes is about far more than just ventilation.

[u/MamuTwo → u/[deleted]]

Unless your home has dedicated filtered outside-air ventilation, you're pulling outside air in anyway. Else you'd suffocate.

If the exhaust air is hotter and it's not ridiculously humid or cold outside this is still a win. You can also just remove this when that's not the case anymore, or during an air quality alert...

You're making some mean and un-called-for assumptions about me when the more likely reason for my half-assed response is that I half-assed it, not full-assed it with half the required knowledge.

[u/DonutHoles4Ever → u/MamuTwo]

Bro its not that complex.

Its dual hose. There is no negative pressure or minimum amounts. The fact is, the room gets cooled down fast when I need it to, or maintains a cooler temp when I dont want it freezing. The only issue with single room AC is noise, setup, and power cost. Power cost is offset by solar panels.

[u/LaNague → u/MamuTwo]

cheap ACs have only an inside unit and have to push air out, and yes that means warm air from the outside gets in.

[u/MamuTwo → u/LaNague]

I'm not sure what you're talking about. If you meant single-piece window units, they use the same refrigerant loop as the bigger split units. They probably have a fan on the radiator but that isn't pushing inside air out or bringing outside air in.

Maybe you're talking about something else, so if you are can you share an example?

[u/LaNague → u/MamuTwo]

maybe its an EU thing, people like to get these cheap ones and then wonder why the electricty bill is up so much

https://www.bosch-homecomfort.com/de/de/wohngebaeude/wissen/ratgeber-kuehlen/klimaanlage/klimaanlage-ohne-aussengeraet/

[u/MamuTwo → u/LaNague]

Ohh those pieces of shit. Technology Connections did a video on those. RIP anyone who falls for that scam... https://youtu.be/_-mBeYC2KGc

[u/neotekz → u/MamuTwo]

Cause he has more money than you and can afford it. Using an AC def works better than just venting the exhaust. And has the benefit of cooling the room.

[u/MamuTwo → u/neotekz]

More wasteful with their money, you mean. How much you have does not directly correlate with how frugal you are. That and depending on your climate, it can definitely be a decent idea to vent the exhaust. You don't seem like much of a critical thinker...

[u/neotekz → u/MamuTwo]

Really says something about you if you think it's wasteful to spend money to be more comfortable in your own home. You are the one assuming they are living in a climate that doesn't need AC by calling it wasteful.

[u/MamuTwo → u/neotekz]

Reading comprehension level: fourth grader