OSO Hotwater are a world leading manufacturer of stainless steel water heaters. Headquartered in Norway and with strategically located facilities across Europe and Canada, OSO is a global innovator in water heating design and construction. Founded in 1932, OSO were first in the world to mass-produce stainless steel Domestic and Commercial hot water cylinders and many subsequent technological breakthroughs and since are the oldest award-winning manufacturer in the industry. OSO Hotwater Canada is known throughout the construction industry for innovative, market leading products and with unparalleled customer services and experience.