This is the best sub-topic that I could find, if it's wrong please let me know.
I have an electric samovar. It's basically a 5 liter water heater that sits on the counter. I use it all year to make my tea, but I use it a lot when it's cold. Hot tea works great to warm the core body temps when working out in the weather. Also, a few water bottles of the hot water does wonders for keeping a bed warm, although I prefer the "happy rock" method for this. I was wondering how the experienced j-rocket builders would build a j-rocket samovar? More importantly, how would you build the exhaust vents so the samovar can be used indoors?