diy chiller.

[tinyreef]

i think the main issue for this and other diy chillers is the transfer medium/heat exchanger. i did a diy chiller out of a peltier-powered thermos chest (Target $30) but i the only thing is had to use as a heat-exchange medium was an extra coil of plastic tubing. very poor heat exchange imo.

i've been running it since last year. took it offline for the winter and just fired it back online. even though the heat exchange is very low efficiency (imo) i think it's still comparable to a deskfan cooling a tank (which was what i was using for a week before i restarted the diy chiller).

both cooling methods pushed the tank temps down 4~6F but the diy chiller did it without evaporative cooling.

 

[Rob Top]

Wouldn't it be easier, cheaper and perhaps more effective to have a large vat filled with ice? Have the tubing run at a slow rate through that then the tubing empties into the sump with heaters to ensure it isn't ice water going into the tank. The $70 for the fridge could be all the ice you need for the 3 month. Heck even a vat with cold tap could do it.

 

[waymack97]

i was thinking geothermal.
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