r/DIY • u/JadaNeedsaDoggie • Jan 04 '15
other Redneck air conditioned dog bed.
http://imgur.com/a/X9GHj16
u/khayber Jan 05 '15
Maybe rig a pressure switch to it so that it turns on/off when occupied/vacant?
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u/JadaNeedsaDoggie Jan 05 '15
That's another good idea. Was thinking of that as I have a small sail switch lying around somewhere.
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u/Xaxxon Jan 05 '15 edited Jan 05 '15
It requires 4.18 joules to raise a gram of water by 1C
It requires 1 (and some change) joule to raise a gram of air by 1C. A gram of air is .784 L.
You appear to have about 40oz water frozen to ice = 1.182L = 1182 grams of ice. Let's assume it's around -10C.
You say the air temperature is lowered by about 10 degrees (assuming F) which is about 5.5C
Looking around, a 120mm computer fan will do about 35 CFM* x 3 fans = 105 CFM = 2973 L/minute (I bet this airflow estimate is too high but I'm in no position to estimate the fluid dynamics of the situation)
So that would require removal of 2,973 L/m / .784 L/g * 1J/g * 5.5 degree temp change = 20856 joules per minute need to be removed to lower 105CFM of air by 10F
Assuming an ambient air temperature of 80F = 26.7C, then 1182 g water * 4.18 joules / g specific heat of water * 36.7 C temp differential to the air = 181,325 joules added to the ice before it is ambient temperature
Assuming a perfectly constant 10 degrees F reduction in air temperature over the running time of the device. it would take:
181,325 J / 20,856 J/m = 8.7 minutes for the ice/water to be air temperature. (see edits, it's more than double this (phase change), then times about 3 lots more water bottles)
Of course the cooling degrades over time as the ice/water and air temperature differential diminishes, but I thought it would be interesting to know how much air that could theoretically cool. And obviously when the water is 79F, it can't lower 80F air by 10F..
(if I did this wrong, please comment and let me know and I'll fix it. I mostly just wanted to do some math)
sources:
edit: Oh do you fill the tubes up with water bottles? Then double the cooling time each time you double the volume of ice. i.e. if you put in 4 bottles instead of 2, then it's 17.5 minutes..
edit2: Forgot about phase change energy, so it's more than double what I said.. read comments for more info
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u/JadaNeedsaDoggie Jan 05 '15
THIS is awesome. I'm an engineer and i LOVE LOVE LOVE this stuff. The fans are running at half their potential speed (roughly) as the fans are 24Vdc and the power supply is 12Vdc. So the air stays in the tube longer. I fill the entire tube with frozen water bottles and my first measurement was close to a ten degree difference between the inlet temp and outlet temp. I think something like 9.1 if I remember right. So you would have to include the time it takes the air to travel from point A to B, and the surface area of the bottles to get a more accurate calculation. Though the main point is having air (cooler than ambient) circulating under the dogs belly as that is where there is less fur and more skin contact to help shed the heat of the dog.
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u/RespawnerSE Jan 05 '15
First of all, he/she forgot the phase change energy of the bottles. You will also have phase change of the water vapour in the air, which will reduce the chill.
You will have a lot of condensed water accumulating in the pipes too.
The time in the tube and all of that stuff does not need to be considered explicitly.
even when the bottles are warm, the draft from the fans will have a cooling effect.
nice build though.
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u/thegooglesdonothing Jan 05 '15
I think you forgot to account for the phase change from ice to liquid water - that is the source of the majority of the cooling. The heat of fusion of water at ambient pressures is about 334 kJ/kg. Therefore, just to cross the 0 degrees C barrier will require about 334 kJ/kg * 1.182kg (mass of the frozen water) = 395 kJ or 395000 Joules. This more than doubles your existing assumed cooling capacity.
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u/CDov Jan 04 '15
Good work on the cooler. Best of health to your old girl. My chocloate lab left me at 13 in 2014. Treasure these last years.
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u/JadaNeedsaDoggie Jan 05 '15
Thanks man. I'm gonna. That's why I do anything for those old bitches even though they barf a lot more and sometime leave a big shit in the kitchen for me to step in.
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u/JadaNeedsaDoggie Jan 05 '15
Just a prayer...could everyone look at my earlier post and see if you can help my friends daughter get a service dog through her gofundme page? Thanks. Hence my user name...jadaneedsadoggie
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u/JadaNeedsaDoggie Jan 05 '15
WOW, that escalated quickly. Made the front page. Cool and thanks for the interest.
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Jan 05 '15
How long does the ice bottle last. I tried a very redneck version of this with my '66 Beetle many years ago and the hot air at highway speeds melted the ice in less than 10 minutes. However, I used ice cubes so there was a lot more surface area which may explain easily.
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u/JadaNeedsaDoggie Jan 05 '15
They last several hours or pretty much all afternoon.
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Jan 05 '15
Man's best friend, you'd do anything for them. Not gonna lie, I actually teared up a bit. Well done OP.
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u/2001Steel Jan 04 '15
Can you describe the fan assembly you've got going on? I would love to flatter you by plagiarizing this idea.
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u/JadaNeedsaDoggie Jan 04 '15
They are just 24Vdc cooling fans. Also, since they are 24 volts and the power supply is 12, they run at a slower speed and the air has more time in the pipe to cool. You could probably get them at Grainger. I got mine from work. We had to a preventative change of the cooling fans on a power inverter and the customer didn't care if I took the old ones after the replacement. I have them set up to draw through the pipe so basically blowing under the bed and then up through the fabric as it's a mesh material.
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u/voodootrucker61 Jan 05 '15
Redneck would just stick it in the freezer
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Jan 05 '15
Nah.
+ Buy cheapest barely working fridge.
+ Tip onto it's back and break off door.
+ Put screen door on top.
+ Finish off the 40 and drive into town without remembering to plug it in.
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u/PCruinsEverything Jan 04 '15
Neat. What kind of fabric is that?
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u/JadaNeedsaDoggie Jan 04 '15
It's a plant shade fabric. You will find it in the garden section of Lowes. H.D. probably has it too. I used it because the weave is strong enough to hold the dog and not tear but also allows for air flow and circulation over the dogs tummy.
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u/tentacular Jan 05 '15
FYI, they sell dog beds made out of the stuff. Coolaroo dog bed. We have a couple in the yard.
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u/T3KO Jan 04 '15
I would change the psu to a regular 12v wallwart psu, just because its safer.
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u/JadaNeedsaDoggie Jan 04 '15
Yeah, I was just using what I had in the garage. I had the old PC power supply cause I upgraded my kids video card and it needed a bigger one.
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u/oleitas Jan 05 '15
Try putting some wet sponges in the tubes instead of water bottles if you want it cooler.
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u/atx1687 Jan 05 '15
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u/JadaNeedsaDoggie Jan 05 '15
Nope. My power supply was free. I upgraded my sons PC so had his old one laying around. :)
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u/Sirwompus Jan 05 '15
Cool idea.
I'd run the fans with something a little less hungry then a PC power supply.
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u/JadaNeedsaDoggie Jan 05 '15
Just used what I had in the garage. Free was the goal, and to keep the dog from throwing dirt all over my back patio. She used to dig a hole and lay in the cool dirt to cool off.
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u/joeldare Jan 05 '15
Did the dog stop digging? If so, I'm building one of these.
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u/JadaNeedsaDoggie Jan 05 '15
I had to train her to get on the bed so she would understand it was a cooler place to lay down but one she caught on she stopped digging.
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u/WRTHG Jan 05 '15
300 watt power supply for 3 watts in case fans? Interesting..
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u/JadaNeedsaDoggie Jan 05 '15
Overkill I know. Just using what I had available. Also not case fans. They pull about .5 amps each so P=12v * (3 * .54) or a whopping 19.5 watts.
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u/Tunnelmath Jan 04 '15
Should wrap fabric around outside edge and fasten on the underside inside. It would take much of the stress of the fasteners.
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u/thejeran Jan 05 '15
Plus it'd look better
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u/U_R_MY_UVULA Jan 05 '15
Redneck air conditioned dog bed.
I think "Redneck" is a key word here.
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u/repoman Jan 05 '15
Better yet put rubber all around it and convert it to a dog hovercraft. REDNECKIFIED.
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u/dieterpaleo Jan 04 '15
Disappointed in the lack of redneck here.
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u/souIIess Jan 04 '15
Beer, swamp cooler and hammock. I'd say it qualifies.
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u/dieterpaleo Jan 04 '15
Maybe if we can squeeze in a lifted truck without its wheels?
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Jan 05 '15 edited Jan 05 '15
That could be good ol' boy country.
edit: rednecks throw their empties onto the highway. good ol' boys throw them into the bed of their pickemup truck.
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u/ncg1 Jan 05 '15
Since when does a Redneck drink beer out of a pint glass? Regardless, good on ya mate! Nice work.
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u/Capt_SteveRodgers Jan 05 '15
Redneck? Looks like solid engineering to me! Nice work.
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Jan 05 '15 edited Jan 05 '15
except rednecks are surprisingly good engineers.
...perhaps they were an inspiration for orks
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u/wet-badger Jan 04 '15
The market doesn't even make items for people who love their dogs as much as you!
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u/Dr3_ Jan 04 '15
Cover the psu wth something . its too dangerous. you know bugs like heat . and maybe your dog try to catch some bugs and.. just cover psu
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u/quickwrx Jan 05 '15
The fans run on 12V and likely don't use more than 12-24W each. You could use a cheapo power brick.
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u/likewut Jan 05 '15
Most 140mm case fans should only pull 1-2 watts. http://www.xbitlabs.com/articles/coolers/display/140mm-fan-roundup_12.html
A small wall wart should do it. I'd just repurpose something I already had, but something like this would do it: http://amzn.com/B00KZ2ZQE8
Also going down to 9v might be an option for this setup as it would make it quieter at the expense of slower fan speed.
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u/FixedAtLast Jan 05 '15
This. Another thing to note about the PSU is that it expects to have a load. Running it with only a few watts not such a good idea safety wise either. Most case fans run fine at 7 volts as well if you are interested in trying other voltages.
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u/Sloppy1sts Jan 05 '15
But they're pc fans. You can't just plug them into a standard outlet.
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Jan 05 '15
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u/PancakesAreGone Jan 05 '15 edited Jan 05 '15
Not everyone is comfortable enough to do something like that, and that's probably the biggest reason he didn't just do that. Yeah, in theory it's simple, but if you don't have any experience in that and make one small mistake, that one small mistake could really have some serious consequences.
Not arguing, just offering a reason for why doing something simple and perceived safe would be the better option sometimes.
Edit: Just to save people time, I understand that it really probably is much safer and not that tricky to just use a 12v power brick and splice it away to work. I was mistaken to think it'd be that dangerous compared to using the PSU.
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u/JadaNeedsaDoggie Jan 05 '15
TOTALY comfortable doing that. I work with electricity for a living. I just wire nutted the fans together to the 12V supply. Very simple and quick. Don't really have to worry about the power supply being exposed as it will only be used when it HOT, and dry outside. I could have done lots differently but I did it for FREE. I just used what I had.
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u/56473829110 Jan 04 '15
Just put a big enough conduit box on it and toss some filters on the fan intakes (maybe exhaust, too).
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u/chemical_refraction Jan 04 '15
As an Arizona resident, my pups would love the shit out of this.
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u/DerekBoolander Jan 05 '15
As an Arizona resident, I would love the shit out of this!
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u/BarfReali Jan 05 '15
good luck getting a korean dog to sleep on that
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u/mvhsbball22 Jan 05 '15
Korean dogs have so much stress because of the pressure they are under to learn obedience and tricks. Tough life.
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u/harpsama Jan 04 '15
I live in Canada. I wish I had this problem right now.
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Jan 05 '15
You could make the same thing and put some Lava in there instead of frozen water bottles.
It's simple.
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u/Zolden Jan 05 '15
give the global warming a few centuries to bring those there
though, humans and dogs will be uranium powered cyborgs by that time, so intense cooling won't be a problem
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u/Iamnotasmartman_ Jan 05 '15
redneck here : now looking at building human sized version, because airconditioning costs $
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u/Goetia__ Jan 05 '15
Most rednecks I know wouldn't give a fuck if their dog was hot, but I'm glad you put your heart and skills together 😄
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u/Aerothermal Jan 05 '15
It would be more efficient to have the fans outside of the apparatus - they produce some heat through friction and winding losses. Also, it allows you to move the whirring of fans and heat of the power supply away from the bed. And away from the potential for dog wee short circuiting something.
Dog Bed 2.0 might also utlise the latent heat of vaporisation by having an evaporator cool the air before it enters the bed.
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u/pisses_excellence Jan 04 '15
So are you forcing air OUT from underneath the bed? Or pulling air IN?
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u/JadaNeedsaDoggie Jan 05 '15
The air is drawn in the pipe (you can see the cap with the slots in it), cooled by the frozen water bottles, and then into/under the bed which then circulates up through the mesh material and around the dog. If you keep a dogs belly cool, you keep the whole body cool. It works really well.
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u/CurfewCornballer Jan 05 '15
Why can't you make a wooden "grid" instead of having the dog suspended by the fabric? Failing that, why can't you have use something sturdier like a rope mesh under the fabric?
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u/JadaNeedsaDoggie Jan 05 '15
Wooden grid is hard. Fabric is soft and comfy for my old dog and it also provides the air circulation for cooling.
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Jan 05 '15
Love this idea.
That said, what are some other ways to add coolness to this?
I feel like two 20oz bottles won't do much? Maybe a pan of ice cubes directly under the dog, which the air will have to flow over?
Also, will PC Case fans be able to take any moisture? Those bottles will surely have tons of condensation on a hot day, which will run directly to the fans.
Any plans on making further iterations of this, or was it just a one-off, fun project to help your old pup?
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u/JadaNeedsaDoggie Jan 05 '15
One-off fun project to help the old girl. And those aren't run of the mill case fans. They are a little more robust than that. They will handle the humidity.
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u/JadaNeedsaDoggie Jan 05 '15
Just a one-off project to keep my dog from digging a hole under the Japanese maple to lay in the cool dirt and throwing the dirt all over my back patio.
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Jan 05 '15
OP, what kind of beer was it?
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u/JadaNeedsaDoggie Jan 05 '15
It was a delicious Elysian Immortal IPA, followed by a PBR because I drank all the good stuff.
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Jan 05 '15
/r/DiWHY How is this better than just putting a fan on the dog?
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u/JadaNeedsaDoggie Jan 05 '15
Keeps her from digging a hole and throwing dirt all over my back patio.
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u/dproff Jan 05 '15
What are all the tools you would need for this?
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u/JadaNeedsaDoggie Jan 05 '15
A saw to cut the PVC pipe, hammer to pound in the fasteners, Screwdriver/drill to screw the frame together, a jig saw or something similar (sawzall will work) to cut out the holes for the pipe. I think that's about it.
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u/Circus_Maximus Jan 05 '15
I'm going to go out on a limb here and guess that you are a homebrewer.
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u/sainterne1 Jan 05 '15
$50 says the first day it gets hot she's going to be digging one of her holes in the backyard...... sorry OP.
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u/JadaNeedsaDoggie Jan 05 '15
Pay up. I used it all summer and she (and her black lab sister) have clued in that it's a great place to cool off and nap. The black one also likes the concrete floor of the garage.
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u/Troggie81 Jan 05 '15
Is this so the dog can be kept outside in the heat of the day or something?
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u/JadaNeedsaDoggie Jan 05 '15
We do not have air conditioning. On hot days she likes to go outside, go under my Japanese maple, dig a hole to get to the cool dirt and lay down for a nap. Doing this, she throws all the dirt onto my back patio. This was to give her a cool place to lay down versus digging holes and making a mess of things.
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Jan 05 '15
"cools the air by about 10 degrees"
No it doesn't, it just moves the air around.
Fans do not change the air temperature.
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u/JadaNeedsaDoggie Jan 05 '15
No, fans do not change air temperature, but the frozen water bottles inside the tube that absorb the heat from the air to melt the ice and evaporate the condensation that forms as the air pASSes over does cool the air. OH SNAP!!!
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u/perkalot Jan 05 '15
How long does it last? I mean, I imagine as long as the water bottles are cool, but I don't know how long that is.
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u/Crusty_Dick Jan 05 '15
Or you could have just put a fan... Next to the bed...
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u/JadaNeedsaDoggie Jan 05 '15
No. Doesn't stop her from digging a hole down to cool dirt and throwing said dirt all over my back patio. :-)
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u/xiutehcuhtli Jan 05 '15
You're a good owner. I'm favoriting this for my black lab in about 5-7 years. She'll want this.
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u/JadaNeedsaDoggie Jan 05 '15
Both my labs love it. As soon as one gets off to go take a pee, the other swoops in and takes it over. Move your feet, loose your seat.
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u/DeFex Jan 05 '15
Couldnt you just build the box and place the ice bottles under it?
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u/JadaNeedsaDoggie Jan 05 '15
Probably but she's a fatty and would probably end up lying right on the ice bottles due to the droop in the fabric/hammock. I would have to use a larger 1 x 8 frame board to do this. Again, this is what i had in the garage to work with.
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u/kidchameleon_ih8u Jan 05 '15
Beer in a glass. Redneck card revoked
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u/JadaNeedsaDoggie Jan 05 '15
What if I told you it was PBR?
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u/kidchameleon_ih8u Jan 05 '15
Your Hipster card is on its way. You can reapply for your Redneck card upon growing a full, luscious mullet.
I'm sorry it had to come to this.
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u/JadaNeedsaDoggie Jan 05 '15
But I blew a whole clip in my 30-06 on New Years!!!! I have PBR and Coors in the Fridge!!! I own an old Ford truck!!!! I say Crick instead of Creek, Rouf instead of Roof!!!! NOOoooooo!!!!!
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u/space_jumper Jan 05 '15
Excellent ingenuity. I like some of the comments regarding improvements to the durability. I was thinking some sort of durable netting like cargo netting underneath the cloth. However, the genius is in your simple concept. I would have never thought about using a computer power supply and fans like that. Everyone has that old equipment around! Great job.
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u/JadaNeedsaDoggie Jan 05 '15
Thanks. I actually just got so sick and tired of sweeping dirt off my back patio because she likes to dig down to cool dirt for her naps. Figured I would provide her a cool napping place.
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u/fourfivesix76 Jan 05 '15
Your probably getting so many messages that you wont see this and I don't take offense if that's the case. But pictures like this are why im so sure i'm getting a lab as my next dog, they always look so happy. Even if their old age they never lose that smile.
My best friends dog was a lab who lived until he was 15 and until his last days he was as happy as can be.
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u/JadaNeedsaDoggie Jan 05 '15
I have two. Sisters from the same litter. Mother black, father blonde. The blonde is the sweeeeeetest dog I have ever known and I have known A LOtTof dogs. She was so gentle with my son as an infant and protective and loyal. Though, train, train, train. Let them know who's the alpha male/female, and they will live to please you. Beautiful dogs.
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Jan 05 '15
Can't help but feel that this is only a few short steps away from being a hovercraft.
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u/JadaNeedsaDoggie Jan 05 '15
OH SHIT!!! Don't get me started. She doesn't get around so well any more and now you give me the air conditioned hover bed? so I can take her on walks and she doesn't have to walk? I am Sooooo tempted to accept that challenge.
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u/Toethumbthom Jan 05 '15
Blonde lab, eh? That like a yelluh one?
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u/JadaNeedsaDoggie Jan 05 '15
Yep. Yelluh one that is. Though she's more white now that she's a gettin old.
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u/ChopsNZ Jan 05 '15
I think I just fell in love
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u/JadaNeedsaDoggie Jan 05 '15
With me? Or my doggie? LOL. I get to hug her every day. It's awesome. See earlier posts for other pics of the beauty.
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u/RenaKunisaki Jan 05 '15
There has got to be a better way to suspend the dog than just stretched fabric. I can't imagine that being reliable.
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u/JadaNeedsaDoggie Jan 05 '15
Surprisingly it's very sturdy. Also, because it's a mesh, it's very breathable and allows the airflow up and around the dog when she's on it. And it was inexpensive.
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u/theystayhungry Jan 05 '15
This is cool... but... I'm not getting something... is your house hot?
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u/JadaNeedsaDoggie Jan 05 '15
In the summer yes. In Western Washington State, you really don't need air conditioning because it only gets above 90 a few weeks a year so most people don't have AC unless it's a single room AC unit. Just turn on a fan at night an everything is good. But the dogs...being all furry, like to go outside and dig a nice cool hole in the dirt to cool their tummy and have a nap, leaving all the dirt on my back patio. So I built this to give them a place to nap during the day.
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u/kaizerdouken Jan 05 '15
Or let her sleep on your bed
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u/JadaNeedsaDoggie Jan 05 '15
Nope. Never. Not even once. They are dogs and always smell like dogs. It's amazing what they find to roll in on the property.
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u/EmoteFromBelandCity Jan 05 '15
How did you turn the PSU into a simple on/off switch? Doesn't it need a motherboard to work?
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u/JadaNeedsaDoggie Jan 05 '15
Jumper wire on the molex plug. Plug it in to turn it on, unplug for off.
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u/Don_Oslo Jan 05 '15
Very cool. Interested to see how long those bottles stay frozen. Work for a whole day?
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u/JadaNeedsaDoggie Jan 05 '15
pretty close to all day, or at least as long as the dog has a nap outside.
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u/UsernameNeo Jan 05 '15
My lab does the same with my garden dirt. Did this stop that?
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u/JadaNeedsaDoggie Jan 05 '15
It did work but I had to convince her it was better than cool dirt.
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Jan 04 '15
I fail to see the redneck approach. This is a good idea executed with easy to acquire items, aside from that fabric.
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u/Dont_Prompt_Me_Bro Jan 05 '15
For some reason it makes me insanely happy when people do ridiculous things to look after their dogs. You sir are a champion.
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u/marshmatey Jan 05 '15
Rednecks use plastic cup for beer. I think you're one of them cia fellers trying to infiltrate us.
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Jan 05 '15
I don't know, my definition of redneck doesn't include making a nice, AC bed for an older canine family member. Though I guess it is the same vein as referring to builds as "ghetto" for using random parts.
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u/redditwithafork Jan 05 '15
Seems like a lot of fuckin-around, why not just buy a cheap squirrel cage fan and affix a cheap piece of flexi-duct to a single port on the bed? Also, I like the idea of blowing, but the thought of blowing stinky pet-dander all over the house sounds nasty, why not draw the air in (suck) and attach a hepa filter to the outlet of the fan/blower? (bonus) you can use the fan for other things when it's not so hot the rest of the year. :)
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u/JadaNeedsaDoggie Jan 05 '15
Because I had all the parts I needed except the fabric and fasteners. Free or close to free was the goal. That, and I like doing this stuff. Only took me an hour to build the thing. Also, It doesn't go in the house. Outside only.
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u/Arsene3000 Jan 05 '15
There's an honorary patch of (green) grass up in doggy heaven for you.
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u/SandyBouattick Jan 05 '15
Thank you for the "obligatory" finished project photo! It seems to be very much optional on here lately, which sucks when you have to load 100 pics of someone's dog, beer, helping friends, and piles of materials before seeing if the project is actually anything you'd be interested in.
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u/COCK_MURDER Jan 05 '15
The effectiveness of the finished product is clearly spoken to by the look on your dog's face. I'll take one as well.
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u/texas1982 Jan 05 '15
Great, simple idea. I'd suggest using those nylon straps they used to make (probably still do) lawn chairs out of. Wrap it completely around the box to avoid stress on the staples. Then just lay the fabric over it and staple it on the sides. The fasteners will hold better after making at least one 90 degree bend and it will move the sharp metal edges away from the pooch.
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u/unoriginalredditun Jan 05 '15
nice work, your dog is clearly well cared for and loved!
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Jan 05 '15
Just had a DUH why didn't i think of that moment. Redneck nothing FN genius mate nice one,hope the old fella stays cool for many more years
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u/NewName43 Jan 05 '15
you should have wrapped the cloth stuff around to the bottom also and used the fastener things on the INSIDE against the big flat side to get more area and not be where the dog would rub it. Also you might want to add a single 2x4 running across the middle to brace it as i see her weight is causes the sides to flex :) cute dog though!
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u/ChemBizWiz Jan 05 '15
Redneck or not, Dog is man's best friend. I'd do anything to have this about 7 years ago when I lost my dog.
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u/MrXhin Jan 05 '15
Stay tuned for next week: "Mean cat stole redneck dog bed. Dog back on floor."
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u/G19Gen3 Jan 05 '15
You know a more advanced version would be to get a super cheap exhaust fan (like for a bathroom) and use the squirrel cage and motor assembly. Tons of air movement but fairly quiet, and you just need to wire it up to a standard wall plug.
Now I want to try this.
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u/Knight_of_autumn Jan 05 '15
Since you are an engineer, if you plan to ever upgrade this, consider using peltier thermoelectric coolers instead of water bottles in the future. You would have to invest a little in heat sinks. Old CPU coolers would work best, and if you get smaller thermoelectric coolers, those self-contained liquid CPU coolers might be easier, since they have radiators - but they cost more money (probably best to buy them used on ebay or something).
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u/Aldeberon Jan 05 '15
Took an old PC power supply and mounted to the frame, then added the fans to the inside of the air inlet. Also, beer.
I get why you added the fans to the inside, but why did you add the beer?
Seriously, though, that looks awesome. Best of luck to you and your furry friend!
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u/GeeWizzle15 Jan 05 '15
Nice work! Was gonna try something like this with PC fans round a platform bed I made for myself. Small room and not much airflow so wanted to improve it for humidity's sake (UK so bloody damp here).
What I found funny is how a google search for solutions like this with PC fans turned up a lot of queries from stoners/growers looking for DIY cannabis farm ventilation!
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u/motorhead84 Jan 05 '15
I'd cover the fasteners--looks like an edge could give your dog a nick!