- A portion of this video
was sponsored by Constant Contact.
Watch 'till the end to learn more.
We've water cooled everything
from phones and laptops,
to red 8K cameras.
But up until now,
our efforts have been entirely focused
on cooling the devices we're using.
Well, what about us,
the users?
I mean, I can't be the only one
who gets like stress sweats,
when I'm the last one left on my team.
Why aren't we water cooled yet?
What I want is a water cooled chair.
Fortunately, I know a guy.
Meet the Sweaty-Ass-B-Gone 9,000,
patented definitely not pending,
and in the next 10 minutes or so,
we're gonna show you,
how we did it,
and find out if it actually works
because we haven't tried it yet.
(upbeat music)
I can't say this is the world's
first water cooled chair,
but what I can say
is it's the best one, probably.
I can also say that it's exactly
the kind of overkill thing,
you'd expect to see on this channel.
This dominator EE black,
that Maxnomic sent to our chop shop
is now packing,
look at this.
700 Watts of Silver stone power
an EK, that's right,
full custom loop quality pump
and reservoir combo unit,
and my favorite part
is that we're not gonna be circulating
some lame room temperature water,
because a big chunk of that Silverstone power supply,
is dedicated to this,
a 300 watt Peltier chiller.
That's right.
We are going sub ambient baby.
Why? Well, here's the thing,
a water loop alone
is great at moving heat around,
but if the ambient air,
is close to the user's skin temperature,
well, think about it.
There would be zero game
and on a very hot day,
it could even have the opposite effect,
pushing heat into the chair,
warming the user's tush.
Now we could have used
the new and improved CPU chiller
that Alex and Colin built,
but the idea was to create something here,
that could conceivably be daily driven,
and nobody wants to deal with that kind of hassle.
Fortunately, we had a couple of these
aquarium water chillers lying around,
if you're a regular watcher of LTT,
which you should be by the way,
so hit that subscribe button.
You might remember this little guy,
from the first episode of
"Bad Cooling Ideas with Alex."
Now they didn't work out for PC cooling,
because a modern CPU or graphics card,
will easily overwhelm the cooling capacity
of one of these little guys,
but a resting human typically outputs,
anywhere between 100 to 120 Watts.
Well, that should be easily manageable
by our 300 watt Peltier,
even accounting for some inefficiency.
Now there were a few,
well, extra steps
to bring this to life.
Our pump and Rez
are mounted to a plate,
that we harvested
from a SeatQuake kit,
with a nifty little 3D printed bracket,
courtesy of our Prusa 3D printer farm.
We're gonna drop that file
on the video description,
if you wanna replicate this for yourself.
Then we needed to do some,
well let's call it fancy plumbing.
The pump outputs here
to the Peltier chiller,
which is okay,
so far so good,
but then, whoa, whoa, whoa, Nelly.
It splits into dual five millimeter inputs,
into this manifold,
which further splits it
into four loops,
that we can independently
turn on and off at will.
We've got two bypass circuits.
You can see them here and here,
that we can open
if we wanna reduce restriction in our loop,
and then these two
are for the backrest,
and the seat loops respectively.
The hardest part of this build honestly,
was figuring out,
how to integrate our tubing
into the seat itself,
without making it noticeable.
We started by choosing
a very soft silicone tubing,
to make it harder to feel any ridges,
through the chair's cover layer,
then after removing the covers
from the polyurethane foam cushions,
Colin sketched out their shapes
and designed a flow track,
that was cut using his big format laser
by defocusing the pinpoint laser beam on purpose,
Colin was able to slowly etch down,
a roughly five millimeter wide,
by five millimeter deep groove
running multiple passes,
so as not to scorch the urethane.
The silicone was then tucked into the channel,
and then tucked into place
with foam safe super glue,
to keep it from wiggling its way loose.
Which brings us to this moment.
All that's left(indistinct)
is to tuck this foam into the chair,
bleed the air out of the system,
and well, we're going to find out
if it works, aren't we?
This is the kind of thing
that is a 100% inspired,
by a real world personal need.
Like I get freaking sweaty
when I'm at my computer sometimes.
- That was before you had AC.
- That's true,
but like why pay for air conditioning
an entire room,
if the only thing in it
is your gaming self, right?
- This is more efficient.
This is eco-friendly.
Jammer in there.
- Okay.
Okay, got it lined up here.
- You gotta walk it in.
So we'll get that all up in there.
- It's a water cooled chair!
And it's so much better than that other one.
Yeah I mean, no one's ever gonna see that part anyway.
- [Nick] Now we install it back.
- [Linus] Wow, these manifolds are sick.
Where did we get these?
- [Nick] (indistinct)
- [Linus] I love it.
- [Nick] They're air manifolds.
- [Linus] Thank you fish nerds.
- [Nick] Your next step while you're down there,
is we've gotta drop the(indistinct) to fill it.
- [Linus] (indistinct)
- [Nick] No no no, careful, 3D printed,
please unscrew it.
- [Linus] (laughs) 3D printing, great,
for most things.
- [Nick] Great until you put a Linus in the equation.
- (indistinct)all right, moment of truth.
(indistinct) lttstore.com by the way.
Cheers!
And wow!
It really, there's not a lot of water in there.
- [Nick] Nope.
- [Linus] That's it, eh?
Something to note is that,
we do have a barbed fitting on here,
with no collar,
and no a ziptie on it.
That would normally not be best practice,
if we were to deploy this in the longterm,
but we're just, you know, trying it.
And actually we haven't shown you guys the switch yet.
So this switch,
controls the power supply,
which is jumpered.
So you just connect the green
and any ground pin on the PSU,
so what this does is
it basically just allows us to power up,
the power supply without a computer.
- [Nick] Now, I don't know
if you're gonna feel anything
right off the hop.
- It's so hard to tell
if it's a placebo effect,
it feels really chilly to note
It's still got a little bit of warmth on it.
Like I can see where your hands,
touch the back of the chair,
and I can see where my butt was on it before,
but I can also see it cooling down
like hardcore right now,
compared to the one,
that does not have anything installed in it.
But initial impressions,
I can't feel the tubes.
Like I can,
if I try really hard,
or if I feel with my fingers,
but with my back,
it's not the kind of thing I would notice.
One thing I can see though that we missed,
is that this area here,
should have absolutely been cooled.
- [Nick] You think?
- [Linus] I do think so because you can,
you can really see
how much of the user's heat goes--
- [Nick] Look how much heat is still in there.
- [Linus] Thigh heat.
Our control chair is sitting at about 25 degrees,
which is about room temperature right now.
Our cooled chair is as high as 25 degrees
in the areas that were not cooling,
which makes sense,
because foam is a good insulator.
In the areas that we are cooling,
it gets as low as 23.
It looks like there's actually some areas
that are even lower.
So that might not sound like a big difference,
but a two degree difference
is the difference between like,
the warm pool and the cold pool.
So let's see how it goes.
(indistinct)
See, this is where I get all hot and bothered.
Unskippable crap.
I can definitely feel my back warming up.
- [Nick] Yeah, I can see the seat.
The seat has gained a little bit of heat,
even just from you like
being around it comparatively.
- All right, you guys ready?
So here's the chair,
and here's my back. - [Nick] Whoa!
- [Nick] So your back is at 30.1.
- [Linus] Okay.
- [Nick] And the chair is at 33 at your back,
and 31 and a half,
at your legs.
- Okay.
So we basically went up
like a degree a minute
on the chair, alright.
- [Nick] If we look over to the cooled chair.
It is sitting at 23 degrees.
- Turbo mode!
Here we go.
Oh, oh!
(Linus laughs)
That couple degree difference is huge,
especially after I've been sitting,
in a non cooled chair,
like effectively with insulation
all over my back.
I can feel it warming up,
but what I'll be interested to see
is after the same amount of time,
if it's less warm
and if I feel less warm.
- [Nick] Remember now you're getting into this chair
and you're hot too.
- That's true.
- [Nick] Two, one,
okay, what have we got?
- All right, you guys ready?
This is it.
Moment of truth.
- [Nick] Okay.
- Okay.
- [Nick] Well this is back--
- How much, how cool am I?
- [Nick] 30.5, is on your back.
The chair is 30.
(mumbles)
Right there, 30.1,
but butt's a lot colder, 27.4.
- I have more weight down here,
which is better for thermal transfer.
- [Nick] That makes sense,
'cause it's pushing,
it's compressing the foam,
and you're getting closer
to the-- - Right.
to the thing.
- Like I don't remember
what the initial numbers were,
but the way it feels, guys,
like a degree or two here or there,
huge difference.
It is so much more comfortable.
You just wait.
lttstore.com. Nick.
- [Nick] Yeah.
- For real though,
we're not doing that.
Water-cooled gamer chairs,
are not how we make our money.
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Thanks to Constant Contact
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Now onto the conclusion.
If you guys enjoy this kind of hacky stuff,
go check out the Area 51 Water Cooling video,
that we uploaded,
it's like a laptop,
it's water cooled,
it's crazy.
It's insane.
You haven't even tried it yet, have you?
- No.
- It's noticeable right?
- A little bit.
It's like--
- You don't think so? - Barely there
- I don't think it's enough.
I think we need to go more tubing.
- No way, okay.
You haven't sat in it
for very long though.
- That's fair.
- It's different.
- It takes a minute,
but you do feel it.
- That's weird.
- Awesome I'm glad that's worked.
(laughs)
- Yeah, me too.