HELP ME PLEASE Climate!!!!!

Yeah my buddy has a grow room and a 400 watt mh bulb with ballast BUT his grow room is in a cold area in the basement area always cold what should i do and what the minium of survival...???? Answer back asap plz???

Welcome to RIU

Get a cheapo heater from wal mart or store like that. Get one with an automatic temp gauge and set it to 70 degrees

Well .. inside the growroom you need at least 70F during the "day" and at least 60F during the "night".

just get a lil heater and have it turn on at nights or when ever you are seeing the temp getting to low

this is a great question, i need to know also the ABSOLUTE minimum temp for growth all i need is a number

justsaymint,
as i said before :
you need at least 70F during the "day" and at least 60F during the "night".