I've been a reading this forum for a while now and I enjoy everyones input. I have a question for you folks...I live in a small town that at this point has not passed any ordances on OWB yet. I have a two year old Central Boiler and own approximately 4 acres so I'm not smoking out my neighbors but I am concerned about the little smoke I do produce. I burn it properly and try to reduce the particals as much as I can. My father is now in the process of installing a EKO (Its either a "80" or "90" I can't remember which number is correct) with 1200 gallons of storage. I will be putting up a new garage and install a similar system in two years but I have to get through with my OWB till then. I'm going to install a tank I have that holds 330 gallons as a heat storage, so with the boiler and storage I'll have approximately 725 gallons of water. My question is has anyone experimented with lining the sides of their OWB with firebrick to increase the temp so that maybe the boiler will produce less smoke particals? My thoughts are that with the increase in water storage and firebrick I should be able to burn it hotter and for a longer burn time. Any thoughts would be appreciated.