I had a pioneer II installed & love the heat it puts out. Not real happy with the burn time, supposed to get up to 10 hrs but am lucky using good size chunks of seasoned red oak to get more than 5 with a decent bed of coals & at 6 - 7 is going out or out. Anyone have suggestions or ideas, I'm not new to wood stoves but am new to these new epa catalyst style stoves. Maybe there is something not functioning properly within the stove? Going to write manufacture as well. Have 1 heat zone kit ordered to install which would direct heat in the room behind the unit & would love to put in 2 but layout of attic just won't work I feel.