During the winter, yes, the HID will provide some heat when the lights are on. (too much during the summer months, lol) Likely not enough to keep the ladies cozy and warm during the winter, though. (especially when lights are off)

I live in the desert, where humidity is around 9% during the summer, and I don't own a humidifier. Every time you water your ladies, you are adding a bit of humidity. Overdoing humidity at any stage and you risk mold, but buds are more susceptible.

Keeping temps within a 15 to 20 degree range is preferable. With my outdoors flower shed, I have problems with this twice a year. During the winter, I try to keep the temps between 50 to 70 degrees, during the summer months, I try and keep them between 70 to 90 degrees. Were I just growing inside my house, I'd keep the temps between 60 and 80 degrees.

BOZO: Three responses to this post, and you never answered a question.
Quote Originally Posted by justanotherbozo
i don't mean to sound like an a**hole
Too late. Especially considering the fact this isn't the first time in the past few days, that you've ragged on a member for the assumed offense of not looking the info up.
Now normally, I agree that one should use the search function, but you offer no insight or help beyond that. Just strife, and an implied superiority in your tone.

So...my recommendation is: You keep reading, and when your actual knowlege base is equal to your implied knowlege base, you'll be more qualified and perhaps know how to respond in a less flippant and unhelpful manner. (ie: by then, perhaps your responses will be helpful)
Rusty Trichome Reviewed by Rusty Trichome on . quick n00b question re: heating & humidity does the HID light provide the heat for the grow room too? or do i need a seperate heater/source? also as i need to control the environment inside the tent best as possible i was thinking of buyin a humidyfier because i heard they like it humid.. but im sure i also read somewhere that seedlings dont like it humid or it causes root or stem rot. does this mean i should only turn the humidyfier on after 5 nodes? thanks in advance :thumbsup: are there different preferable temps for the different Rating: 5