Our Degree Day Calculator is the easiest and most reliable way to calculate Heating and Cooling Degree Days. No more copy/pasting Excel data, no complicated formulas - just a single click for your specific location. Being used by architects, energy, real estate and factory managers around the world, it's safe to say that it is indeed one of the best tools available.

Convert your U-value to R-value or RSI and vice versa

This is the 4th video in a multi-part tutorial on how to acquire daily weather data for a specific place, caclulate monthly and annual averages, and calculate heating and cooling degree days. In this video we calculate monthly heating and cooling degree days in Excel.

Design Energy Simulation for Architects book. Read reviews from world’s largest community for readers. Energy modeling calculations for urban, complex bu...