Ferroli Italian boiler manufacturer Ferroli has been at the leading edge of heating appliance products manufactured in Verona, Italy design and development for more than half a century and now operates in 14 countries throughout Europe and Asia. Ferroli has brought many innovative heating appliances into the marketplace, from high efficiency domestic combi, system and open vent boilers to a wide range of renewable products, including complete solar systems, plus an extensive range of commercial boilers.