CG Thermal Leadership


Richard Chandler, President

After commissioned service in the US Army and an MBA degree, Chandler began his career in industry in 1974 with the Graphite Products Division of Carborundum Company. Shortly afterward, this was renamed the Metaullics Systems Division, with Chandler as General Manager. One of the major products produced by this Division was graphite heat exchangers of all major types including shell and tube, cross-bored block and cubic heat exchangers. Also, this Division was responsible for designing and introducing to the chemical process industry the revolutionary SiC-tubed heat exchanger now sold by CG Thermal under the Umax® name. In 1993, the Division was spun off from Carborundum Company, and acquired by a group of investors including Chandler. The heat exchanger business achieved unprecedented growth and success under this group, including establishment of a plant in China to serve that fast-growing market. The business was acquired by Carbone Lorraine in 1998.

In 2010, Chandler led a group of key past employees of the Metaullics Systems Division to re-constitute this business, and bring to the CPE the same commitment to design excellence, quality and customer care that led to the division’s previous success. Product offerings of the new company, CG Thermal LLC, include a complete line of graphite and ceramic heat exchangers and fluoropolymer lined components.

Greg Becherer, Senior Vice President

Greg began his career as an Application Engineer with BW Rogers Co., a distributor of many lines of equipment for the CPE. He then moved The Carborundum Company in 1987, where he learned the application and design of graphite heat exchangers from the bottom up. After the Division was sold to Carbone, Greg took on the job of Sr. VP, Sales and Marketing of the AstroCosmos Division, becoming an expert in the applications of reactive metal heat exchangers and process equipment, in addition to graphite and ceramics.

Greg has been involved in almost every aspect of the graphite and ceramic corrosion resistant heat exchanger market, including design and application engineering, development of advanced design heat exchangers, and the full range of sales, marketing, and international business development activities. With his extensive CPE experience, and a B.S. Degree in Mechanical Engineering, Greg is a recognized expert in corrosive heat transfer applications.

Greg is a principal and charter member of CG Thermal LLC, and brings his considerable technical expertise and knowledge of the needs of the CPE to our customers.

Joan Bova, Vice President, Sales and Marketing

Joanie began her career as an application engineer for cooling tower and closed circuit cooling products at Baltimore Aircoil Company. She expanded her involvement with heat transfer equipment while working with James R. McQuaide, Inc., a sales organization in the Philadelphia area representing equipment lines focused on commercial cooling.

Joanie joined CG Thermal in 2014. She has primary responsibility for domestic sales, including engineering sales support and product management, and for worldwide marketing activities. She is involved in all products and applications, and is well versed in the AspenTech software and assists in evaluating thermal selections.  She enjoys meeting customers and potential customers to more fully understand their processes and help evaluate options or upgrades. Joanie works closely with both engineering and production to ensure  the customer receives the best possible product to meet their requirements.

Joan holds a degree of Mechanical Engineering from The University of Notre Dame, and is a member of AIST.

B. David Hudson, Principal Member

After receiving his B.S.M.E. and M.B.A. degrees, David began his career with the Pfaudler Company, where he had complete engineering responsibility for thermal and mechanical design of their glass and alloy heat exchangers. After the Metaullics Heat Exchanger Division (then owned by BP America) was merged with Pfaudler, David took on additional responsibility for the design and sizing of graphite and ceramic heat exchangers.

In 1987, David joined the Metaullics Systems Company as Engineering Manager for the Heat Exchanger Group. In that position, he was instrumental in the design of the award winning Hexoloy® ceramic heat exchanger, and improvement of the Impervite® graphite product line.

In 2010, he joined the CG Thermal start up company, providing complete engineering design for the new company. In total, David has a life time career of 50 years experience in mechanical design and thermal sizing of corrosion resistant heat exchangers for the chemical processing industry. David is a principal and charter member of CG Thermal LLC.

Aaron Viet, Engineering Design Manager

Aaron became part of the CG Thermal design team in 2014, bringing with him over a decade of graphite equipment design.  A graduate of Virginia Western University he has been involved with all aspects of graphite equipment design since 2006.  Prior to joining CG Thermal in 2014 he had been the Design Engineering Manager for Mersen USA (formally Carbone of America) since 2010.

Aaron is the acting Chairperson for the ASME Sub-Group of Graphite Pressure Equipment where he has been a member since 2010.  He is also a member of the ASME Section VIII main committee and part of NBIC Subgroup graphite working group.   His working knowledge of code design rules,  extensive hands-on design experience, and practical approach brings high value to all of our projects.

Robbie Stefka Jr., Production Manager

Robbie is a Cleveland native and proud graduate of Cleveland Central Catholic High School. Robbie worked for several years at a large warehousing company, and learned every aspect of the business and focused on exceeding customer expectations.

Robbie started with CG Thermal in 2011 as a Production Associate. He was quickly promoted to Shop Lead and Shop Foreman prior to taking on his current role as our Production Manager.

Over the years he has worked on just about every type of graphite heat exchanger in existence.  With an eye for graphite, he can quickly troubleshoot and execute the most advantageous repair.  He is a wealth of knowledge when building OEM units as well.  By creating a unified production team, shop throughput and overall quality has excelled under Robbie’s leadership.

Robbie enjoys working together with every department of the company in order to make sure that our customers get the best product on the market.

Caleb Krichbaum, Quality Manager

Caleb received his BSME from the University of Akron in 2017. While attending school, he worked three co-op rotations for Babcock & Wilcox. While there, he helped research the viability of solar boiler systems, and the prevention of corrosion in boiler systems. After graduation, he joined CG Thermal’s team as a quality and project engineer.

At CG Thermal, he works with production and sales to guarantee our customers receive the quality products they need. Since becoming a part of CG Thermal, he has implemented in-house testing improvements to create a more efficient shop floor, as well as improve the products delivered to our customers. He also maintains our quality system, and its compliance with ASME Section VIII. He ensures all parts used in fabrication have the necessary testing and certifications for ASME, and verifies the accuracy of the documentation.

Robert Grooms, Thermal and Process Design Engineer

Robert graduated in 2020 from Cornell University with a BS in chemical engineering. At Cornell, He served under Jeff Tester to research thermally degrading tracer molecules used to solicit thermal properties from geothermal reservoirs. In the summer of 2018.

Robert worked at the Idaho National Lab in Idaho Falls, ID, where he designed a system to quantitatively test thermal energy storage devices, and analyzed the impact of integrating thermal energy storage systems into nuclear power plants. In the summer of 2019.

Robert worked as a R&D intern for Duracell in Bethel, CT, where he optimized the formulation of lithium coin cell cathodes for use in high discharge rate battery designs. After graduation, Robert joined CG Thermal as a Thermal and Process Design Engineer.


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