The Team






H. Lewis Hinkel, Jr. PE, CEM, CEA

Principal - President




Lewis Hinkel established HEI Engineering Group, Inc. in October 1996 and continues to be the engineer in responsible charge.  He has been a registered engineer in the state of Ohio since 1992.  He is a member of the American Society of Plumbing Engineers, the American Society of Heating, Refrigerating and Air-Conditioning Engineers, The Association of Energy Engineers and the National Society of Professional Engineers.  He is a graduate of The University of Akron (1985 BMT) and Stark State College (1980 AAS).  He is a Certified Energy Manager (CEM), and a Certified Energy Auditor (CEA) through The Association of Energy Engineers.


Lewis’ experience in mechanical design work dates back to 1980 when he started employment at The Timken Company in a facilities engineering department.  A summary of his experience would highlight his industrial exposure while at The Timken Company; his HVAC project management and custom HVAC equipment design while a Project Engineer at Air Enterprises, Inc.; his consulting engineering experience while a Sr. Engineer for Scheeser Buckley Mayfield, Inc.; and his management and leadership experience while Chief Mechanical Engineer for MKC & Associates, Inc. as well as his current professional practice at HEI Engineering Group, Inc.


Partial Project list:


Northwest Local Schools – Multiple Construction Projects

Crestline Local Schools – New K-12 School

Kent State University – Multiple Renovation Projects

The Timken Company – Multiple Consulting Projects

Alliance Hospital – New 52,000 SF Professional Office Building

Regula Federal Office Building – New 45,000 SF Office & Court House

Ontario Schools – 20,000 SF Bus Maintenance Garage

Gateway Church – 28,000 SF New Church

United Titanium – 56,000 SF Mfg Plant Addition

Litchfield Fire Station – New 11,000 SF Fire Station

Wooster Grace Brethren Church – 16,000 SF Student Ministries Addition

Technifab, Inc. – AC for existing 34,000 SF Mfg Plant

Village of Highland Hills – Energy Audit of Municipal Buildings

Walsh University – Physical Ed. Bldg Boiler & AC Upgrade/Replacement

Wayne County Justice Center Chiller Plant Upgrade/Replacement

Wooster City Schools – Multiple Boiler Upgrade/Replacements

NC State Fallerius Tech Ctr. – Boiler & AHU Upgrade/Replacement

North Olmsted Schools – Boiler Plant Upgrade/Replacement

Westview Manor Boiler Upgrade/Replacement