Global engineering business Howden has acquired both Advanced Combustion Inc (ACI) and Advanced Fan Systems as it looks to expand its mine ventilation offering.

ACI, located in Toronto, is the leading designer, manufacturer and installer of mine air heating equipment for the mining industry, according to Howden. Advanced Fan Systems, meanwhile, manufactures a line of fans for a wide range of ventilation applications.

“This acquisition is a further continuation of Howden’s total mine ventilation solutions strategy to provide the global mining industry with a portfolio of best-in-class products, controls and services that gives customers the most efficient solution to their ventilation needs,” the company said.

Howden’s business spans mine ventilation and waste water treatment to heating and cooling. Just last year, the company acquired Chasm Consulting and its Ventsim software, providing Howden with a full suite of solutions for mine ventilation, from modelling and design software to full turnkey projects including main and auxiliary fans, instrumentation, automation and Ventilation on Demand, via the Simsmart product line.