So maybe a larger sheet of stainless steel with a epoxy coating to protect it form salt? Drop in chillers dont have a lot of surface area but they more than likley get a lot colder.
Smaug
Here is a quick pic the yellow would be a titanium plate 3/16 inch or so maybe 10x10 inch square it would be sandwiched between plexi peices so you dont have to wory about your fresh water and salt water mixing.
Actually i had a brain strom today. Instead of using tubing in a heat exchanger why not make a tank or tub with a partion made of titanium. a sheet of titanium is remarkably cheaper than tubing and you would not need a pump to move your salt water at all just run the pump on the underground loop...
Thanks for the reply Ann i agree that it is to diffacult to just guess. i was thinking about 3/4 schd 40 pvc for my loop iand i think the goruynd temp at 4 feet stays around 65-70 degrees. i am looking into that now. Shroom i am not sure what kind of lighting you use but for the system i am...
The problem i see is in cooling say 400 gallons+. I agree with the drom fridge. I have read many threads on the idea and a lot of threads on how it does not work. The geothermal loop is a useable idea. i have read that by blowing air into a group of 4 inch pipes you can cool a whole house. My...
I have gievn this some thought as well. If you go 3 to 6 feet bleow the suface of the ground you will have a pretty contasnt temp between 65 and 75. I would run 3/4 inch pcv in a loop and use freshwater. I would also add a small amount of bleach to the water to keep it free of ANY life...
