Bristol Stickney has been designing, manufacturing, repairing and installing solar hydronic heating systems for more than 30 years. He holds a Bachelor of Science in Mechanical Engineering and is a licensed Mechanical Contractor in New Mexico. He is the Chief Technical Officer for SolarLogic LLC in Santa Fe, N.M., where he is involved in development of solar heating control systems and design tools for solar heating professionals. Visit www.solarlogicllc.com for more information.

Max Rohr is a graduate of the University of Utah and manager of REHAU Academy in Leesburg, Virginia. He has worked in installation, sales and marketing in the hydronics and solar industries since 1998 and writes this column in his personal capacity. The views expressed are his own and do not necessarily reflect those of the company he works for. He can be reached at [email protected] and on Twitter @maxjrohr.

Jay Egg is a consultant and designer of geothermal HVAC systems, in addition to being author of two books and several articles on the subject. He is the Founder of Egg Geo, LLC, and focuses on geothermal advocacy, engineering,  and educational efforts. He can be reached at [email protected] or egggeo.com.

Steven Nudelman is a partner at the law firm of Greenbaum, Rowe, Smith & Davis LLP, where he is chair of the firm’s Construction Contracting & Risk Management Practice Group. He is also a member of the firm’s Real Estate and Litigation Departments and its Construction Disputes, Community Association, Alternative Dispute Resolution, and Alternative Energy & Sustainable Development Practice Groups. Nudelman is a Charter Fellow of the Construction Lawyers Society of America and a Fellow of the Litigation Counsel of America. You can reach him at 732-476-2428 or [email protected]. 

Timothy Allinson is chief plumbing engineer at ACCO Engineered Systems. He holds a BSME from Tufts University and an MBA from New York University. He is a professional engineer licensed in both mechanical and fire protection engineering in various states, and is a LEED accredited professional. Allinson is a past-president of ASPE, both the New York and Orange County chapters. He can be reached at [email protected].

Ron George, CPD, ASSE 12080 Legionella Management Professional, is president of Plumb-Tech Design & Consulting Services. Visit www.plumb-techllc.com for more information or call 734-755-1908.

Samuel S. Dannaway, P.E., FSFPE, is a licensed fire protection engineer and mechanical engineer with bachelor’s and master’s degrees from the University of Maryland Department of Fire Protection Engineering. He is a past president and fellow of the Society of Fire Protection Engineers. He is vice president of Fire Protection Technology at Coffman Engineers Inc., a multidiscipline engineering firm with over 360 employees across eight offices. Sam can be reached at [email protected].

John Gregory has more than 37 years of experience in medical gas system design and inspection, process piping, plumbing and fire protection system design for multiple business classes. He is a certified medical gas inspector, NITC 6020. Gregory serves on the NFPA 99 Technical Committee for piping and installation, and he is a co-chair of the PIPE Medical Gas Committee in Arizona. He is the assistant vice president at WSP; email him at [email protected].