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.

A brief guide and free tool for the calculation of the thermal mass of building

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This category provides guidelines and recommendations for modeling for Sefaira.

PassivLink is the Revit Add-in that exports data directly to PHPP