Önaysan Endüstriyel Ürünler was established in Istanbul in 2007, which started its activities by providing white goods, electronics, heating, cooling, automotive and many other metal and aluminum components, has taken steps to expand its product range in the heating sector since 2014. With its quality products and services, it has got a considerable share in the industry in a very short time. In order to meet the needs of the HVAC industry in our country, Önaysan started with an R&D team of about 10 people, whose objective was to reduce the costs in the sector by producing imported substitute products. Önaysan has started a feasibility study on products with the highest import shares by analyzing many sectors such as heating, refrigeration, electronics, white goods.

Consequently, it started to provide components in reasonable quantities with the project of expansion tanks using domestic type boilers. In about 5 years, it managed to become a company from which more than 70% of the expansion tanks used in the boiler sector are supplied in Turkey. Also, expansion tank exports, which started in small quantities since 2015, reached 7 countries in 2018 with the joint project works that have begun in recent years.