Chris Dorsi literally wrote the book on Home Performance — Residential Energy is the textbook I was required to read for my BPI training. He understands the whys and hows of everything. He’s a renaissance man!
Chris Dorsi literally wrote the book on Home Performance — Residential Energy is the textbook I was required to read for my BPI training. He understands the whys and hows of everything. He’s a renaissance man!
Chris Dorsi 