I installed a Biasi 3Wood 4 section this heating season and have burned a product very similar to Bio Brick called Liberty Bricks. I do not have any place to cut and split wood for free heat and the bricks are an easy and clean way to keep my yard looking nice. I have had good luck with the boiler but really need to tend the fire quite a bit (every 3-5 hrs) depending on the temp outside. Creosote can build up fast even with the dry blocks that we burn. We do not have any storage but can see the advantages of having it. I have toyed with burning coal in it and was wondering if anyone else on the forum has attempted burning coal to get a longer burn time and cut out the creosote? If so, how has it been going and have you heard any news about shaker grates that are supposed to be coming out for this boiler.