OSO Hotwater are a world leading manufacturer of stainless steel water heaters. Headquartered in Norway and with strategically located facilities across Europe and the UK, 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 UK is known throughout the construction industry for innovative, market leading products and with unparalleled customer services and experience. With our industry experience and knowledge we provide our customers with products and service to resolve their water heating challenges.