I live in CO and winters can get pretty cold here. I am growing inside . What advice does anyone have?
5 Likes
If the space is unconditioned….a small heater and humidifier. What light are you using Growmie 
4 Likes
Passive oil radiator or vent in room. Lights on at night for the heat during coldest hours. Thats what i do.
7 Likes
Mars hydro TS1000
I have everyone elevated off the ground and they are fairly close to a vent where both heat and cold come out.
That ts1000 puts out quite a bit of heat on its own ive noticed.
3 Likes
Good morning 
. I’m not sure you have enough light to finish that many plants. 
3 Likes
Keeping the humidity up is the biggest challenge winter growing has to offer.
4 Likes
Thats why I use a radiator. Not as bad as forced air.
3 Likes
Same. Set and forget.
3 Likes
I too am in CO. I am transitioning from swamp cooler to heater and my humidity drops by 40% easy. I run my lights at night to help with heat also. I just bought an evaporative humidifier for inside the tent to fight the heater drying out the house.
That is really all we can do here in the mile high.
2 Likes
All of the above. Try to keep the temps where the plants are between 70-80 degrees F and humidity above 50%RH if at all possible. The smaller and younger they are, the more sensitive they will be. I think I lost a couple of cuttings/clones I kept alive for 8 weeks yesterday because the temps and RH dropped suddenly 2 nights ago. It hit 63F and 40RH inside the tent. The larger girls did not even notice it, but the small ones in solo cups suffered greatly. Entirely my fault, I had the heater out and sitting right next to the tent. I just forgot to turn it on.
2 Likes