This item has to be a joke hasn't it? It surely can't work. If you think about it, you would need to keep the stove running all night long to keep the water warm which is surely not practical. If you don't keep the stove going to heat the water, the water will go cold and will suck all the heat out of your body, leaving you freezing cold.
Not posh enough I'm afraid.
Martin
Sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy.
Kayaking is so passe for Poshcrafters:
http://www.flynano.com/