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 be gone 9000 patent
definitely not pending and in the next 10 minutes or so we're going to show you
how we did it and find out if it
actually works because we haven't tried
it yet
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 silverstone power and ek
that's right full custom loop quality pump and reservoir combo unit and my
favorite part is that we are not going to 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 gain 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 res are mounted to a plate
that we harvested from a seed quake kit with a nifty little 3d printed bracket
courtesy of our prusa 3d printer farm we're going to drop that file in the
video description if you want to 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 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 want to 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 collins 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
tacked 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
is to tuck this foam into the chair
bleed the air out of the system and uh well we're gonna find out if it works
aren't we this is the kind of thing that is a hundred percent 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 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
i got it lined up here there you go 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 now we install the back
wow these manifolds are sick where'd we get these they're actually for an
aquarium i love it they're air manifolds thank
you fish nerds your next step while you're down there is we gotta drop the res out to fill it
right right right right right oh careful 3d printed
please unscrew it 3d printing great
for most things great until you put a Linus in the
equation all right moment of truth hey
lttstore.com by the way cheers
and wow really there's not a lot of water in
there nope that's it eh something to note is that we do have a
barbed fitting on here with no collar and no zip tie on it that would normally
not be best practice if we were to deploy this in the long term 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 no i don't know if you're going to feel
anything right off the hop it's so hard to tell if it's a placebo effect it
feels really chilly too though 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 you think i do think so because you can you
can really see how much of the user's heat goes look
how much heat is still in there 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 we're not cooling which makes sense because
foam is a good insulator
in the areas that we are cooling it gets as low as
23. oh 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
see how it goes
see this is where i get all hot and bothered
unskipable crap i can definitely feel my back warming up
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 so you're back is
that 30.1 oh okay 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 if we look over to
the cooled chair it is sitting at 23 degrees turbo node
here we go oh oh
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
remember now you're getting into this chair and you're hot too that's true two
one okay what do we got all right are you guys ready
this is it moment of truth okay okay
minus is back how much how cool am i 30.5
it's under your back the chair is 30
right here right there 30.1
but that's a lot colder 27.4
i have more weight down here which is better for thermal transfer
that makes sense because it's pushing it's compressing the foam and you're
getting closer to the to the thing i 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 yeah for real though we're we're not doing that water-cooled gamer chairs
are not how we make our money this portion of the video was sponsored
by constant contact constant contact sponsored this portion of the video to
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try it out for free at the link in the video description thanks to constant
contact for sponsoring that portion of today's video now on to 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 barely know 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
it's different it takes a minute but you get you do feel it
that's weird awesome i'm glad this worked me too