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About the Author

Christopher Morin is currently the Eastern MA and RI Area Sales Manager for America's leading ductless manufacturer: Mitsubishi Electric Cooling & Heating. Chris started carrying tools at age 16, graduated from Minuteman Regional Vocational, and promptly entered the U.S. Marines as a Refrigeration Mechanic where he served two tours in Iraq. Returning home, he was a Service Technician, then Service Manager, before working for a MA based utility rebate program implementer as an HVAC Specialist/Trainer.  An ACCA Residential System Design Instructor, Chris' experience includes consulting contractors and technicians on proper system design and duct testing – both in the classroom and in the field. In his spare time, Chris author’s the successful HVAC Prog Blog, formerly Excess Air. Chris holds a B.S. in Business Management from University of Phoenix, MA Master Sheet Metal License, BPI Building Analyst & IDL, as well as NATE Certifications in Installation and Service for Heat Pumps, Air-Conditioning, and Gas Furnaces.


Advice for Residential HVAC System Design, Quality Installation, and System Diagnosis.