Brewing all grain, in a sub-600 Sq Ft apartment, without the use of a stove?Yes, it is possible, as I found out the other night.
That was far more boil off than I expected, I estimate just over a gallon. It was quite a bit cooler in my kitchen, compared to the last time I did a partial boil extract batch on my kitchen stove. That is definitely indicative of a more efficient process. I’ll have to watch my power meter before and after, next time.