Riello S.p.A. (Legnago, Italy), a manufacturer of oil and gas burners represented by Riello Burners North America (Mississauga, Ontario), and Rockford, Ill.-based Eclipse, maker of gas, oil and oxy-fuel burners, will co-market their technologies. This includes mutual distribution, co-branding and new product development, as well as coast-to-coast sales service and support.