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.

Larry J. Nissley, C.P.M

General Manager
888.519.2347 ext. 102

Doug Stoltzfus

Technical Support & Engineering
888.519.2347 ext. 103

Mark Berkey

Director of Manufacturing
888.519.2347 ext. 107

Kirk Thudium

Director of Sales & Marketing
888.519.2347 ext. 101

Cheryl Davidson

Customer Service / Office Manager
888.519.2347 ext. 105

Mary Wertz

Purchasing Assistant
888.519.2347 ext. 106

Tina Halvorsen

888.519.2347 ext. 104

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.