Hello to all, I have had a Biomass 60 boiler with no storage. I installed the unit in early September 2012, after doing a ton a research I thought this was the boiler for my home. 1870 farm house about 2200 square ft, with a 1000 sq ft shop. I had two main reasons for buying the Biomass 60. The first a the positive draft because it is my cabinet shop and the need for no smoke is a must......Unfortunately that is a bust. I have excellent draft, the fan at 100% will keep most of the smoke out, until I stir up the coals the blue smoke and soot rolls out of the door. The second was the burn time, I work 12 hrs shift. I needed the unit to last hopefully 12 hrs or close. I am lucky to get 8 hours out of the unit. I have had the seller of the unit at my house...He can't figure out what is wrong. I have lost my faith in the unit. I find myself had to tend to it all the time. Tonight I took some setting from a member and set my to those setting. I closed my primary to 1/4" and my secondary to 1/2" setting. My blower shutter is open to 3/4" inch. I hope someone has had the same issues to lend me a had. My wood is mainly ash from our farms hedge rows 6-8 inch in diameter split once been down about a year.