Litigation Support to Attorneys
Assistance to attorneys is the major focus of our practice. More...
Consulting to Industry
Feasibility Studies
Our experience in determining the feasibility of proposed projects is extensive. More...
Energy Management
Energy efficiency in buildings is the heart of Chason's philosophy
Conceptual Design
We believe that truly energy efficient building designs emerge only through teamwork. More...
HVAC Expert Witness - Russ Keller.

Consultant • Litigation Support • Expert Witness — for issues relating to HVAC • Plumbing • Construction • Forensic Expert


Download VCard
(720) 908.1385

Russ Keeler is the principal engineer at Chason Energy. He has over 35 years experience in the field of heating, ventilating, and air conditioning (HVAC) and plumbing design for commercial and institutional buildings. His experience includes both new building design and the diagnosis of problems in malfunctioning HVAC systems.

The troubleshooting experience in his practice lends itself well to expert witness services, as systems diagnostics employs the same approach to problem solving as to evaluation of legal disputes.


ASHRAE Region IX 1999 First Place Technology Award, Youthful Offender System, Pueblo , Colorado

Consulting Engineer's Council of Colorado 1999 Engineering Excellence Honor Award, Youthful Offender System, Pueblo , Colorado

Owens Corning Energy Conservation Award, 1980, Industrial Category


"The Impact of Katrina and East Asian Prosperity on Your Building”, Colorado Business Journal, January 2006.

“Church Air Conditioning Primer”, NACBA LEDGER, Summer, 2005.

“Air Conditioning System of the Future,” The Construction Specifier, January 2002

“Chilling in Style,” Engineered Systems, May 2001

Moisture Control in Buildings, ASTM, 1994. (Author of chapter on HVAC systems)

"Replace DX with Thermal Storage," Heating, Piping, Air Conditioning, August 1990

"Energy Conservation in Health Care Institutions," Philadelphia Blue Cross/FEA, July 1976

Professional Affiliations

American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE)

Building Owners and Managers Association

HVAC and Plumbing • Construction • Expert Witness • Forensic Expert • Litigation Support