Michael Kjelgaard Mike Kjelgaard (N. Easton, MA) is a professional engineer with over 12 years experience consulting. He is currently a project manager fro Engineered Systems, Inc. in Boston. He has a background in HVAC system design, design/build, construction, poject management, energy cost evaluation & analysis, and construction cost estimating. He is also the editor for the Engineering Weather Data for US Cities newsletter. Read More Read Less