What is the best ventless fireplace during power outage?

I went through the ice storm last year and we had no electric for almost two weeks. We had to go stay with my mother-in-law b/c she has a fireplace and we had a small child we were worried about getting too cold. Her water is on pump though, so we had heat, but no water. Her stove is also electric, so we had to try to cook in the fireplace. I'd like to get a ventless gel fireplace for my apartment so that when...not even if, but when...it happens again, we can stay home and have a cooktop and running water. I don't even know where to start! I need something inexpensive to buy and to buy the refills for as we are kinda low income. I also need something that puts off enough heat to keep at least a bedroom, preferably my living room, warm by itself. I have two very young children (one 2 and one 6 weeks) so I need something that is very clean burning. And it needs to be small as space is an issue. Anyone have any suggestions? Please include link to website where I can buy.