About Us

Humble Beginnings

Energy Conservation Supply (ECS) was founded in 1977 by Gerald Henning and his business partner in Gerald’s garage. It started by taking on various labor jobs, from concrete pouring to pipe installations, and within a year the company experienced significant growth. This prompted a move to Main Street in Joplin, MO, marking a new milestone for ECS.

In the mid-1980s, ECS relocated to its current location at 3740 E. 20th Street in Joplin, MO. During this time, Gerald Henning became the sole owner of the company, shifting the company’s focus toward boilers and burners because he recognized their significance as the heartbeat of the industrial world.

About Us
ecs team

A Family Legacy of 
Boiler Expertise

The Henning family’s commitment to the boiler industry has spanned generations. In 1995, Keith Henning, Gerald’s son, joined ECS after graduating from Pittsburg State University. Keith’s expertise and enthusiasm for the business propelled ECS’s growth and success. Additionally, Keith’s wife Leslie serves as the Office Manager, who seamlessly manages the company’s day-to-day operations. The family’s dedication to providing exceptional service continues to drive ECS forward. 2020 was a big year for the Henning’s. They welcomed the next generation to ECS with the addition of Caden Cristy and Layne Henning. Caden quickly earned his place as both Service Manager and son-in-law. Keith and Leslie’s son Layne immersed himself in the inner workings of the company. With a passion inherited from his father and grandfather, Layne contributes his skills and knowledge to the company’s ongoing endeavors. This blending of expertise and shared passion solidifies ECS’s commitment to delivering excellence.

Serving Customers Across the Four-State Area

From humble beginnings, ECS has evolved into a trusted provider of boiler solutions, serving customers throughout the four-state area of Missouri, Kansas, Oklahoma, and Arkansas. The company’s dedication to quality and customer service has fueled their growth and reputation. With a team of 13 employees, ECS values the importance of treating each member like family. This familial atmosphere fosters a supportive and collaborative environment, ensuring that customers receive exceptional service and expert guidance.

4 states

Our Mission

The business is built on the good fundamentals of hard work, honesty, and trust. ECS strives to help our customers in every way we can, with integrity. We use our nearly 80 years of combined workplace experience to truly help our customers with their needs, whether it is with routine maintenance, growth, or upgrading equipment to meet energy savings goals.

Our commitment to our customers does not stop at the sale, our exemplary
customer service carries through.


gerald henning

Gerald Henning


keith henning

Keith Henning


leslie henning

Leslie Henning

Office Manager

layne henning

Layne Henning

Service Specialist

caden cristy

Caden Cristy

Service Manager

aimee nieburg

Aimee Nieburg

Inside Sales

brenden stinebaugh

Brenden Stinebaugh

Service Specialist

brian gayer

Brian Gayer

Outside Sales

dawn hogan

Dawn Hogan

Inside Sales

dennis cole

Dennis Cole


emma hogan

Emma Hogan

Office Assistant

mike barris

Mike Barns

Outside Sales

shawn jacobberger

Shawn Jacobberger


boiler tech cartoon

Ready to See the ECS Difference?