Tim Shellenberger is now vice president, general manager for Rheem’s tankless water heating business unit.

Rheem Mfg. Co. announced the appointment of Tim Shellenberger to vice president, general manager, for the company’s tankless water heating business unit. He will be responsible for developing and managing the Rheem tankless business strategy, increasing the company’s tankless market penetration and managing product development processes. Most recently, Shellenberger was senior vice president, research and development engineering for Rinnai America Corp. He will now split his time between the water heating division offices in Montgomery, Ala., and the Atlanta corporate offices. He will report to corporate Senior Vice President & COO JR Jones.