About Us


Heat Exchanger Experts of Denver is your local Heating and air conditioning company. We have proudly been serving the people of Colorado for over 35 years. Our mission is to provide you with quality and pristine work, and exceptional customer service.


Owner and partner Ellis Prach has successfully built and operated several HVAC companies over the past 40 years. When it comes to heat exchangers, Ellis is considered one of the foremost experts in the entire nation. Ellis is the author of the nationally recognized Heat Exchanger Inspection manual. Mr. Prach has also written numerous publications and articles for nationally distributed magazines, books as well as informational HVAC guidelines. During the fall season, Ellis travels around the U.S. training some of the top HVAC companies and home inspectors in the country, on furnace inspections and safety procedures.



Meet the newest partner of Heat Exchanger Experts of Denver, Christopher Prach. Growing up in the HVAC industry under his father Ellis Prach , Christopher has acquired the knowledge, experience, and passed down expertise it takes to operate an HVAC business. Mr Prach is also a trainer for our sister company, to which he trains contractors nationwide on residential furnace heat exchanger inspections and safety.




All of our technicians are experienced, certified, and fully trained to handle your HVAC needs. We are licensed and insured, and proudly stand by an A+ rating with the Better Business Bureau.

Call us today, and you can see for yourself the reason we have been in business nearly 40 years.