I do all grain, 5 gallon batches in my unheated garage with propane. The pic was taken on 12/11/13 when it was 9 degrease out. As you can see it got a little foggy in the garage. I could even see the wort while it was boiling. I use a cooler for my mash tun for the time being and I have to set it up in my kitchen when its cold out so I can keep the temp up in the cooler. It is such a pain since I have to go to the garage to heat the strike water, bring it in to the house, mash, go out to heat the sparge water, bring it in the house and take all the collections out to the garage to boil.I had a regular electric stove but the wife had to have a ceramic top stove. I had thought about trying to do a BIAB on the stove but I wanted to see if anyone has had any luck with a ceramic top. I haven't looked into it yet but, can you do a 3 gallon, concentrated step mash and do a 60 min boil and top it off to 5 gallons in the carboy? Thanks for looking....