About Us

Founded in 1958, Tunstall Corporation is a recognized leader in the steam and hydronics industry. We operate in all facets of the industry, including design, engineering, manufacturing, sales and distribution. Tunstall is known for its industry expertise, quality products, resourcefulness and customer service. We combine our industry expertise with an entrepreneurial approach and professional management.

We are organized into five business units:

  • Tunstall Steam Traps & Steam Products

  • Macon Controls

  • Macon Balancing

  • Manufacturers’ Representation

  • Energy Solutions

We are located in Chicopee, Massachusetts, where we maintain office, manufacturing and R & D space along with modern warehouse facilities.  Tunstall Steam Traps, Steam Products, Macon Controls and Macon Balancing Products are distributed through an established network of representatives and distributors throughout North America.

We are members of the Association of Energy Engineers, the American Society of Heating and Refrigeration and Air-Conditioning Engineers (ASHRAE).

Why Macon Controls?

A respected national supplier of radiator valves and regulating sensors for the heating and cooling industry since 1975, Macon Controls – a division of the Tunstall Corporation – maintains a solid reputation for energy-efficient products, trouble-free service, and virtually non-existent failure rates. Distinguished by superior quality and performance, all Macon valves and controls conform to ASHRAE Standard 102P-1983 and European Standard EN 215/1215 and carry a 12-month warranty.

Macon Controls are ideal for hydronic and low-pressure steam heating applications – and they deliver up to 30 percent energy savings. A complete line of valve sizes and non-electric control models is available, allowing for temperature regulation of radiators, convectors, fin-tube baseboard, fan coils or wherever individual control is required.

As a pioneer and developer of “smart solutions”, Macon also offers high quality, innovative accessories, including Umbrella adapters™ to upgrade existing thermostatic controls to Macon operators and E-Z Fit™ Conversion kits which transform manual radiator valves to temperature sensitive self-acting valves.