j-rocket samovar?

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?

Hi Creighton;  
Well, no matter how well a rocket burns, you still would have an burning  wood fire venting in to your kitchen. Imagine the smoke seeking a way out and coating your kitchen with wood smoke/ash.
I do seem to recall there was a person that had, just what your describing. I can only think he had exceptional air flow in his home.And I doubt he used it very much.
J tubes work awesome at 6" and up.  They work sort of ok down to 4" . Below that and I think you would have nothing but grief. Especially compared  to your electric pot that is fast and easy (No carbon monoxide).
If you really wanted to try this, you would need a vent / chimney or an open window right next to your rocket (would not be fun in the winter).
I'm curious, even small rockets take up a good amount of room. Is your kitchen that big you would have the space ?
If you live in a single family home building a J tube on your patio/porch would be a safer option.

This wouldn't be for my current kitchen, but a future cabin, wofati or yurt on an off-grid property.

I was thinking along the lines of a 2 inch single walled chimney tube branched off of the main woodstove/RMH chimney.  As far as I can tell, that's not a standard item; but it's a minor amount of wire welding.  My problem is, how do I get fuel into it? Because the only modern samovars that I can find that don't cost a fortune are made similar to a Kelly Kettle; with stick fuel dropped into the top.  So I'd need some kind of fuel gate on the branched chimney in order to add fuel.  So I'm looking for ideas in that regard.