I really need some help figuring out what boiler is going to work for my situation. Our home is a split level 2500 sq feet with 3 zones of hot water baseboard. We currently burn wood in an old coal boiler with a fuel oil back up. The boiler is in our basement and the smoke is then piped through a wall and into our mud room and then into a chimney. We want to move the boiler to the mud room to reduce all of this piping and major creosote issue and the daunting task of bringing in wood and then down to the basement. Im getting to old for all this work! lol We have decided we do not want an outside boiler and want a gasifier. so the next decision is what brand?!?! All this reading is driving me crazy. Our current system has a storage tank of about 250 gallons ( this is a guess). I was hoping to only spend about $5000. Is the EKO 40 big enough for the task? Last question: We may eventually pipe the heat to another building about 50 ft from the house and in wishful thinking maybe heat a hot tub. Should we get an over sized unit for the eventual plan of heating other buildings or would it be better to add more storage when that happens?