Cool, thanks, guys! I need to get some pics of my McGuyvered up oddball crackpot pull it outta my ass gear, like a light rotator that I made out of a mountain bike and a windshield wiper motor...
I researched the different types of hydro out there and since I plan to grow some sizeable specimens, I am building out an RDWC system much like the one this thread is based on. I asked Stu in his thread about another crazy project I'm noodling on, this time it's a system to use cool water coming into the house to chill a grow room.
Using a couple car heater cores, a canfan for each one, and a big reservoir and a pump to push the water thru the cores and back to the res, I'll have a setup that moves heat from the room to the res.- something fairly big, like a 55 gallon drum or something. Then, I plumb the incoming water to the house thru a coil that runs around the inside of the res, and then on to the rest of the house. that way, whenever someone uses water for anything, like showers, the lawn or whatever, cold water cools the res. City water comes out of the tap here at something like 55 or 60 degrees year 'round. Even if i end up needing a chiller, wouldn't this deal with most of the heat from a sealed growroom? The chiller wouldn't have to work too hard, cuz it would only have to deal with whatever heat the cold water coil doesn't... what do you all think?