Lennox International Inc. has appointed Michael J. Blatz vice president, operations. Blatz previously was vice president and general manager for Tyler Refrigeration, a division of Carrier Corp., a United Technologies company.

In addition to serving as vice president and general manager for Tyler Refrigeration, Blatz’s career at Carrier Corp., which began in 2003, encompassed senior leadership positions in supply chain, product management, and manufacturing operations. He also served as director of operations and director of worldwide procurement at Dell Computer Corp. and held engineering and product development roles at Case Corp. before joining Carrier.