I uncovered a company in Ireland that makes a product that can be used in your existing oil fired boiler. You replace the oiled fired gun with a pellet gun. Iy appears to be a very easy solution without a lot of work needed to change you current system around. company is called Surface Power. They have a very informative website www.surfacepower.com Anyone heard of them? They have no domestic suppliers at this time but that won't stop me.