I've installed quite a few Koker 160's and Hitzer 710's.
The Koker wins.
Don't get me wrong, the 710 is a fine unit, but the Koker just runs better.
Remember, if you need the heat upstairs, get something like a A-80 or A-150 Keystoker or the Leisure Anthraking.........something with a jacket...........if you want to have alot of heat going into the basement too, then use a Koker or 710.
A stove is a stove and a furnace is a furnace. Big difference.
A Coal stoker furnace or stove controls most operations including automatically feeding the coal. They are quite similar to any conventional oil and gas units and easily operated for extended periods of time. They commonly use rice coal but may use larger sizes like buckwheat. They can be used as primary heat, supplementary heat or have a dual set up with your existing oil/gas furnace.