Day: January 24, 2014

HVAC & Building Science Training

Building Science + HVAC Training & Certification We’ve been working in the energy efficiency field since 2002. We’re not just teaching from a textbook, we’re

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Manual-J HVAC Design Loads

Our last Manual-J post focused on envelope loads and how important it is to properly account for them in your HVAC design. Now we will turn

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Developments in Green Construction

120,000 homes were “officially” evaluated by HERS raters in 2010 – a 7% increase from 2009. Believe it or not, this number represents 41% of all new homes built in 2010!

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Introduction to Manual-J

Manual-J Heating and Cooling Load Calculations Manual-J is the name for a specific protocol (often called “Heat Load Calculation” or “Cooling Load Calculation“) used to determine

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