We've been using our Hitzer 608 four years now. This stove had the looks the wife liked the best and it sits in our living room,so couldn't argue much. I have never used a keystoker but they get good reviews here on the forum. As far as the 608 it heats our 2200 sq ft ranch home and the heat pump never turns on. House sits on the MD PA border,and averages 3 ton of rice coal a year give or take a little. Wife clams the best idea I ever had, next to marrying her!