Meet Our Leadership Team

Our team has a combined 150-plus years in the waste oil heating industry. And with diverse backgrounds in engineering, design, management and sales, we are proud apply this experience to creating next generation waste oil products. Please find contact information for our leadership team members below.

cehs larry

Larry J. Nissley, C.P.M

General Manager
888.519.2347 ext. 102
larry@cleanenergyheatingsystems.com

cehs doug

Doug Stoltzfus

Technical Support & Engineering
888.519.2347 ext. 103
doug@cleanenergyheatingsystems.com

cehs mark

Mark Berkey

Director of Manufacturing
888.519.2347 ext. 107
mark@cleanenergyheatingsystems.com

Kirk Thudium

Director of Sales & Marketing
888.519.2347 ext. 101
kirk@cleanenergyheatingsystems.com

Mary Wertz

Purchasing Assistant
888.519.2347 ext. 106
mary@cleanenergyheatingsystems.com

Tina Halvorsen

Accounting
888.519.2347 ext. 104
tina@cleanenergyheatingsystems.com

If you could use a little more heat and a little more green, give your local representative a call, call us at 888-519-2347 or contact us online today. We’re looking forward to hearing from you.