Alright /out/, on my boat i want a heater that works when out on the water, i have a simple electrical heater that works in marinas but i cant run it from my batteries, i also have pic related as alcohol stove, is there anyway i can put something on top that distributes the heat nicely? Preferrably something i can build myself, a friend of mine once showed me a small camping stove with a ceramic flower pot on top but im afraid something like that would crack at too much heat, any thoughts?