Founded in the USA in 1894, Dunham-Bush is one of the oldest global commercial heating and air conditioning unit manufacturers. They offer reliable air-conditioning solutions that are equal parts innovative engineering and green technology to meet the international market demands for performance, reliability, and energy efficiency.

One of Many Iconic Structures Utilizing DB Products

Dunham-Bush Air Handlers

Dunham-Bush offers a range of air handlers known for their reliability, energy efficiency, and advanced features, including:

  • Customizability: Dunham-Bush air handlers can be tailored to suit specific project requirements. 

  • Energy efficiency: Dunham-Bush air handlers featurs high-efficiency fan motors, variable-speed drives, and optimized airflow designs to reduce energy consumption and lower operating costs.

  • Air filtration: DB AHUs include high-performance filters that capture airborne contaminants, improving the overall indoor air quality and creating a more comfortable environment.

  • Noise reduction: Dunham-Bush air handlers utilize noise-reducing technologies and insulation materials to ensure quiet performance, making them suitable for noise-sensitive applications.

  • Integration: Dunham-Bush air handlers can be integrated with advanced building automation systems for efficient control and monitoring. 


Dunham-Bush chiller status is growing. DB delivers a wide variety of chiller models designed for different commercial and industrial cooling needs.

  • Range of capacities: Dunham-Bush chillers are available in a wide range of cooling capacities, from 13 Models with nominal cooling capacity from 2 to 200 tons. 

  • Energy efficiency: Incorporating advanced technologies like variable-speed compressors, high-efficiency heat exchangers, and intelligent controls to optimize energy usage and reduce operating costs.

  • Environmental sustainability: Dunham-Bush use eco-friendly refrigerants and incorporate energy-saving features.

  • Reliability and durability: Robust construction and high-quality components equal reliable performance .

  • Customization and flexibility: Chillers can be customized to meet specific project needs, such as incorporating special controls, addressing space limitations, or integrating with existing systems.

  • Service and support: DMG North Supports Dunham-Bush products in the field.