good jesus thats an expensive filing cabinet you got there. NEwho since your resevoir is 10 gallons it should be very easy to keep cool. With the ventilation system included with your "cool cab" I would not worry to much about the water temp however. If you do find that between your AC and ventilation you still get a water temperature over 68 degrees you will need to chill your reservoir. For you this may be as easy as topping off with 2 gallons of 60-62 degree tap water.(my avg. temp out of the tap)

If you do decided to purchase a chiller because keeping your reservoir is invariably gay and hard then I suggest you go with a mini chiller somewhere in the range of 1/15th HP. Search for current USA on Google.

I have been using my 1/10th current USA chiller for about week now. Earl is definitely correct as usual. Insulation of the reservoir and chiller tubing is necessary. Mainly you want to be sure to keep your chiller in a well ventilated area. If the ambient temperature surrounding your chiller is above even 82-85 degrees I have found that chillers will struggle to maintain the requested temperature. AVOID PLACING your chiller in closets, even if they are well ventilated.

I have been able to maintain a temperature of no higher than 69 degrees by only insulating my tubing and providing decent ventilation to the chiller unit. For reference my reservoir has about 45 gallons in it now and ambient g-room temperature is 75-80F.

Earl, can you elaborate, perhaps with pictures how you plan to ventilate and or insulate your chilling equipment?

he shows in his thread


for insulation of the tubing you can just wrap insulation around the tubing or get duct sleeving.

i plan on insulating my res with panda film and insulating foam!

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da fuck?

true I used the exact same insulation method for the tubing. I am mainly wondering how Earl plans to ventilate his larger chiller. Right now I have my chiller right outside the G-room with the door closed. Another fan blows air into this intermediary room to keep it decently cool. I remember Earl talking about further ventilation/insulation in his next grow however.

It is interesting to note that there are chillers on the market already that claim similar results.

Several mini chillers that run at only 100-180watts claim to chill 12 gallons by 6-10 degrees. These chillers come with a controller and will run you about $150-180.

They also have a warranty.

CL-85 Fish Aquarium Heater Chiller 12 GALLON - eBay (item 260155707673 end time Jul-27-08 07:38:19 PDT)

I would like to know more information about your custom chillers mr. Murphey.

simple as hell, about halfway down the page

killies.com :: View topic - DIY Chiller

he just buys a dorm fridge, pops 2-3 holes in it, feeds in some flex pvc line, coils it in a rubbermaid full of water (water xfers temps faster, think warm beer/soda placed in icechest full of ice and water vs. warm beer/soda in just a chest of ice, no water.)

he has a "small powerhead to circulate the water in the tub. Without this powerhead, there's a danger the water in the coiled hose can turn to ice. Circulating the water also ensures every inch of the hose is in contact with the cold water. Besides this, there's another very important piece of equipment too. It's the thermal plate underneath the hose. This is used for making ice in fridges. The thermal plate ensures the water inside the tub becomes very very cold. It isn't very clear in the picture but if you look closely, you should be able to see a white plate underneath the hose. "

imo, as long as the input to the freezer is constantly being circulated, it has about a 0% chance to "turn to ice", so the power head isnt as essential as it is purported to be. still usefull tho


chills his large fish tank to the point that it has condensation all over it, as seen in the pics, and alot cheaper than 420+$ polar bear or active aqua. you could probably build this thing for ~ 150$ maybe 200 if you spring for a more expensive bar fridge instead of a dorm model.

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lolwut.

not smart to toss out your email address on a grow site imo, even if u are only selling chillers, which you are not, per your other few posts.

google/gmail probably has a people paid in a department to cooperate with LEO can just call up and get your info, RIU afaik does not.

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lolwut.

I've been running the 1/10th HP Current Chiller with no hick ups. Mine will bring the 30 gal res down to 63 from 84 ambient. Never tried it lower
I keep mine at 68.
I wish I had one from the beginning, all my root issues have gone away

As to insulation, I'm in HVAC and we use Line-Set Insulation. Very easy to work with!

Unity

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AK47-B.Kush-LA Confi.-Controlled Sealed Environment Grow:
http://www.rollitup.org/grow-journal...ml#post1131523

I am receiving very similar results with my 1/10th hp.

that diy looks sketchy, but cool if u cant fork out $300.

Im going with user24.I have a fridge just sitting out there. I really think it would work,especially with that sprayed foam they have to really seal it up. it goes down this weekend.