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About OEM

The term ”OEM” (Original Equipment Manufacturing) refers to products or components that are purchased by another company and retailed under the purchasing company's brand name as their own. OSO’s OEM customers represent more than 1/3 of the total turnover and this business area is an important part of OSO’s growth strategy.

Being the largest European manufacturer of stainless


steel water heaters, the accelerating development within green technologies for housing and hot water heating has inspired the leading, multinational companies to contact OSO. Heat pump technology, solar collectors and bio fuel require heat accumulation in water. OSO offers customized solutions in accordance with the customers’ needs in cooperation with companies that don’t have an own production of water heaters.


OSO delivers complete, indirectly heated products or inner tanks with built-in heat exchangers to some of the largest players in the European market. Typical applications would be air-water / ground source heat pumps or solar collectors. In general, the minimum production volume for such customers would be 1,000 units per year.

Inner Tanks