Tanknology is the world’s largest provider of tank testing and environmental compliance services for petroleum systems. They have tested more than a million tanks and provide associated compliance services at more than 50,000 sites each year. Tanknology is a proud customer of CalCo Controls.


“The heater we purchased from CalCo is used to warm CO2 so we can inert UST’s (underground storage tanks) before we put a camera inside the tank to do a visual inspection. It worked great and cut down the time by almost half of what it usually takes us to inert a UST. I’m sure this is not a usual way this heater is normally used, but it worked great and we will be using it on any future jobs we get!” – Ken S., Technical Support, Tanknology


It’s great to connect with current customers and form new partnerships with professionals in the petroleum industry. CalCo Controls is recognized as a world leader in the manufacturing of gas line heaters to prevent freeze-ups and increase the flow of gas lines. We are located in Crystal Lake, Illinois (40 miles outside of downtown Chicago). We have thousands of satisfied customers and look forward to adding more each and every year!


Central Welding Supply was born in a very small building in Lynnwood, Washington in 1975. Today, the Central Welding Supply family of companies has grown to 21 retail locations, multiple divisions and over 270 dedicated employees that provide gases, safety and welding supplies. Though the company has grown from one small store to a much larger regional distributor, Central Welding Supply has stayed true to its initial objective: Provide the region’s most responsive customer service along with convenient locations and the best products, while holding on to the core values and traditions of a family-owned, family-run, local business. Central Welding Supply is one of CalCo Control’s many happy customers.


“I can say with my company now and a previous employer, CalCo’s heaters have been handy and adequate for low volume CO2 applications.” -Tony D., Outside Sales, Central Welding Supply


University of California San Francisco is home to leading experts in virtually all specialties. At the heart of their clinical excellence is their focus on patients and how they can improve patient lives. UCSF is driven by the idea that when the best research, the best teaching and the best patient care converge, they can deliver breakthroughs that help heal the world. UCSF is a proud customer of CalCo Controls.


“We were very satisfied with our purchase. CalCo’s sales staff was knowledgeable and friendly, and the heater is very high quality. We will definitely use them again!” -Todd N., Assistant Professor, Department of Anatomy, UCSF


Steel-Tech Industrial Corp is a construction company located in California that was established in 1984. With over 45 employees, Steel Tech generates about $12 million in annual revenues and primarily operates in structural steel erection within the construction/special trade contractors sector. Steel-Tech is one of CalCo Control’s many happy customers.


“We have only dealt with CalCo twice, but we are very satisfied with both the product and the service!” -Mark B., Facility Manager, Steel-Tech


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