About

A Legacy of Innovation and Reliability

Pioneering Global HVAC Excellence Since 1894

Innovation, sustainability, and trusted performance worldwide.

Founded in the USA in 1894, Dunham-Bush is one of the oldest global commercial heating and air conditioning unit manufacturers. We are committed towards offering reliable air-conditioning solutions that are an amalgamation of innovative engineering and green technology, to ensure superior quality manufacturing that meets the global market demands for performance, reliability and energy efficiency. Dunham-Bush green heating and cooling systems have been accepted internationally and are found across the globe, in every business landscape. We are known for high quality and product innovation, reliability, and a powerful distribution network.

Over a Century of HVAC Leadership

Sustainable Solutions for a Changing World

Global expertise in premium heating and cooling.

With a legacy of over 100 years, Dunham-Bush products and services are available across the globe. We offer a broad range of sustainable heating, ventilation and air conditioning (HVAC) systems; dehumidifying and air cleaning products; service and parts support; advanced building control solutions. We are global leaders in premium commercial, residential, and industrial heating and air conditioning systems and service market, cultivating strong business relationships.

Vision

Dunham-Bush is the premier provider of value-added solutions in the HVAC/R market.

Mission

Dunham-Bush creates superior value by using customer insights to build on a core offering, so we can deliver appropriate solutions exceeding customer expectations.

The history of dynamic and progressive thinking

1894

Clayton Dunham’s invention of the first commercially successful fluid-filled thermostatic steam trap initiated a cycle of engineering breakthroughs which established C.A Dunham company into a pioneer of flooded heat exchanger technology.

1894

1935

A factory was built in Morden, Great Britain to manufacturer air conditioning and heating products for the European market. As a part of the strategic expansion to bring the Dunham-Bush brand outside of the USA and into the international market, the factory was later moved to Havant, United Kingdom with larger manufacturing capabilities.

1935

1965

Dunham-Bush’s first centrifugal chiller was developed.

1965

1967

Dunham-Bush achieved a technological breakthrough and was the first company to develop and use screw compressor technology for air conditioning and refrigeration.

1967

1990

Dunham-Bush achieved a technological breakthrough and was the first company to develop and use screw compressor technology for air conditioning and refrigeration.

1990

1995

Dunham-Bush built the new manufacturing plant in Yantai, China. The 20-acre state of the art manufacturing plant was a part of Dunham-Bush expansion, especially for the Asia market, resulting in the demand for lower manufacturing cost, enabling us to produce high efficiency and quality product at a competitive price.

1995

1998

Dunham-Bush built the second Asia manufacturing plant in Kajang, Malaysia. The manufacturing plant was built to cater to the needs of customers in South-East Asia, South Asia and Middle East Market. In addition, as part of Dunham-Bush strategic approach, the headquarters was transferred from the USA to Malaysia.

1998

2010

Continuous R&D with strong engineering and technical expertise resulted in new high efficiency dual stage centrifugal compressors which offers exceptional efficiency and suitable for high ambient conditions in the Middle east.

2010

2014

Dunham-Bush’s first magnetic bearing chiller was developed.

2014

2019

As part of Dunham-Bush continuous expansion, a new factory is being constructed in Miami, USA. The new factory in USA will cater for USA, Canada, Central America, Caribbean’s and South America market.