McDonnell & Miller

McDonnell & Miller is a leader in engineering and manufacturing boiler controls, liquid level controls, low-water cutoffs, and flow switches for steam and hot water boilers in industrial, commercial and building trade applications.

Our Vision & Values

Our vision and values provide the foundation for how McDonnell & Miller want to grow as a company as well as the inspiration for how McDonnell & Miller want to behave as industry leaders and ethical corporate citizens.

Our strong product brands will continue to drive our business forward in moving, testing, analyzing and treating water, and are the essential building blocks of McDonnell & Miller. With decades of leadership in their categories, these brands are at the core of who we are, and each is part of the new, revitalized future we’re creating together at McDonnell & Miller.

Through our signature citizenship program, Xylem Watermark, we bring clean water, sanitation and hygiene education to schools and communities in emerging markets, and respond with water solutions when disaster strikes around the globe.

With greater strategic focus than ever before, a strong and experienced leadership team, a high-performance company culture and a clear plan for short- and long-term growth globally, McDonnell & Miller are building on the strength of our history to deliver a higher level of customer service, innovation and value — today and well into the future.

McDonnell-Miller-Low-Water-Cut-Offs

Low Water Cut-Offs

Let’s have no idea how cold it is outside.

McDonnell & Miller Low Water cut-offs are specially designed to protect steam and hot water boilers from the hazards of a low water condition. In operation they will interrupt the electrical current to the firing device, if the water in the system drops below the boiler manufacturer’s minimum safe water level. Our low water cut-offs also provide an additional circuit for a low water alarm, should you desire to install one, for additional protection.