I have been looking into doing a pellet burner conversion for some time. I have friends is Sweden and they say that they are no issue with the right boiler. So I have done some homework and found the ULMA pellet burner is now available in the U.S. Have they been available here for long? My Swedish friends say that they are highly rated over there, but is there any any expperince with them here? I know through the treads that the Pellergy and Pellx don't have issues, but is the Ulma out there? Here is the website www.pellet-pro.com Let me know what you think.