• API Heat Transfer Inc. (Buffalo, N.Y.) has merged operations with ThermaSys Corp. (Montgomery, Ala.).
• Mars Air Systems (Los Angeles) is celebrating its 50th anniversary.
• Twin-Star Intl. (Delray Beach, Fla.) named Peter Harper (left) as chief financial officer.
• Reznor (Memphis, Tenn.) celebrated its 125th anniversary by opening a new testing lab in Mercer, Pa.
• MacroAir (San Bernardino, Calif.) hired engineering manager Michael Danielsson (left) and promoted Matt Ryan (right) from director of sales to general manager.
Publication date: 3/25/2013