Thanks Desert Sailing.
The Dickinson has been a good investment.
It does take more attention than other methods, but isn't bad. I haven't burned wood because with the small firebox it would probably take constant fueling - especially with less dense woods, and the ash drawer would probably fill up pretty fast.
Charcoal works great - I start with about 10 briquettes and a compressed sawdust fire starter (looks like a half sphere shape). Once the fire is good and hot I can either add more charcoal to keep it going for 3 or 4 hours, or start an anthracite coal fire.
The coal takes a hot charcoal fire to start, but once started it lasts several hours to almost all night with one more fueling before bed. Mine has two dampers, one below the firebox with a slider (it's part of the ash drawer) and a barometric damper in the flue. Once the fire is good and hot I slow the burn by closing the firebox damper to about 1/3 open and adjust the barometric damper so it's about 1/4-inch open. The barometric damper automatically regulates the flame at this point. When adding more fuel, 5 or so minutes before adding I open the firebox damper to heat things up, then add the fuel. I leave the damper open until the added fuel is fully burning then close the damper down again. If it's really cold in the morning I'll restart a charcoal fire to make the van toasty while having some coffee. The ash drawer has to be emptied after an all-night fire, especially a charcoal fire. With coal it doesn't fill as fast, but depending on the coal quality I might have to remove clinkers from of the firebox.