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.