Search DWC Club and see my system .

I keep my res . at 70 w/ lights off , but it ends up higher 72 / 76 when lights are on , 2000w heats it up a lil .

You've got the right idea w/ a pump to chg out nutes , unless your running a bigger system theres easier ways of going about it = you'll see in the thread I mentioned .

You'r ebb n flow sys. will be easy to control water temps = a submersible fishtank heater . It's ambient room temps I have a lil more trouble with = I'm in the north too . I've read it's best to keep lights on / off temps within 10 deg. of each other . If the spot gets down to 55 you might need a heater for the room / spot . I try to keep my low temp around 65 . High at 75-78 . It doesn't always happen though .

Peace
Crispi :stoned:
xcrispi Reviewed by xcrispi on . Temperature questions ok, so I have a question regarding grow room temperatures. I grow in the basement all year and i live in a northern climate. Winter temps down there are around 55 degrees. It's obviously not a problem during lights on, the temp is comfortably in the low 70s in the room. Also, I've never really had any problems doing soil grows in this environment. But, now I'm switching to hydro and I'm starting to have some concerns. Given that the light is off a minimum of 6 hours and a max of 12 Rating: 5