Standing outside you can see when this happens. The first smoke is clearly visible, a white stream coming out of the black pipe. We look again about 15 minutes later, and we have trouble sighting so much as a whiff of smoke.
The stove magically heats our space. I say "magically" because though the top and front heat up significantly, the heat spreads across the tiny house evenly. I boiled water for tea the other night by putting a kettle atop the stove; I was amazed by how fast the water reached a boil.
I'm not going to do a full-blown review yet of the Kimberly Stove from Unforgettable Fire. We're still figuring out which wood at what size works best and trying to see how long we can get a fire to stay burning through the night. (We aren't anywhere close to the "up to 8 hours" we've been told a fire can burn in one of these stoves.) We also got some compressed sawdust logs to try out, after seeing them recommended as a good backup/supplemental fuel.
In the meanwhile, it's simple to light the stove as the temperature drops in the evening. And it's still novel enough to stoke the fire, lingering each time to watch the flames flicker and dance. Much technique to learn, much warmth to savor.