McDonnell & Miller has pioneered innovation in boiler safety for industrial, commercial and residential applications for a century.
A Tradition of Safety and Quality
Since its inception in 1924, McDonnell & Miller has evolved into a storied brand that has left an indelible mark on the engineering and manufacturing landscape. A manufacturer of boiler controls, flow switches and liquid level controls, McDonnell & Miller is committed to continuously improving its operations and developing innovative products that advance safety in boiler applications.
McDonnell & Miller’s long history of quality performance is evident in its portfolio
of safety devices, including its proprietary low water cut-off solutions.
Marking a Century of Innovation
As McDonnell & Miller, a Xylem brand, celebrates 100 years as an industry leader in engineering and manufacturing safety devices for steam and hot water boilers, here are some notable dates in the company’s history.
