nite temps

Hello...My nite temps have been low.. When is it 2 cold at lites out..?

anything below 70 degrees is too cold for maximum growth.

no between 60-70 is fine when there resting!cant you get a small heater with temp control and keep it in the room?

At nite..Verry slow groth...I need 2 get a little oil heater.. Iv been growing since 99....continuasly.. 2 400 hps....Maybe a large heating pad..growing room size.......4ft..ht..6 ft w.....

This must be another result of global warming. I bought a Natural Gas Vent Free Fire Place In my grow area. It's 10 degree's out side and I just check, grow room lights out is 65 degree's with 52% RH. When I was at Lowe's yesterday, I saw a big clearance sale on all of the heater's like this including ones that work using LP gas. Just a thought, I think you know what you have to do?? VV