Registered engineering technologist and expert HeatSpring instructor Robert Bean has developed two calculators to help designers meet ASHRAE Standards 55 and 62.2: “Thermal Environmental Conditions for Human Occupancy” and “Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings.”

Considered one of the leaders and most knowledgeable professionals in his field, Robert’s research and teaching enables designers to determine how indoor environmental quality affects human comfort, productivity, and health.

Free Download: ASHRAE Standard 55 Calculator

Free Download: ASHRAE Standard 62.2 Calculator

For a full description of the free downloadable tools, please see below. 

Free Tool: ASHRAE Standard 55 Calculator
This free tools allows designers to calculate the inside surface temperature for the purpose of determining the mean radiant temperature in calculating the operative temperature as per ASHRAE Standard 55 – Thermal Environmental Conditions for Human Occupancy.

ashrae 55.5

Download this calculator for free today!

Free Tool: ASHRAE Standard 62.2 Calculator 
This free tool allows designers to select floor area and modify number of bedrooms, duct size and duct length, and quantity of duct fittings for the purposes of calculating CFM, duct velocity, and friction. It works for both the 2011 and 2013 versions of ASHRAE 62.2 – Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings. Output includes differential comparison in CFM, friction loss, and duct size as a result of CFM change from the 2011 to the 2013 version.

ashrae 62.2

Download this calculator for free today! 

Robert Bean, R.E.T., P.L.(Eng.) is a registered engineering technologist in building construction and a professional licensee in mechanical engineering. He is president of Indoor Climate Consulting Inc. and director of He is a volunteer instructor for the ASHRAE Learning Institute and serves ASHRAE TC’s 6.1, 6.5, 7.4 and SSPC 55 Thermal Environmental Conditions for Human Occupancy; and is a special expert on IAPMO’s new Uniform Solar Energy and Hydronics Code committee. He has developed and teaches numerous courses related to the business and engineering of indoor climates and radiant based HVAC systems. He will be teaching an online, advanced 10-week course, Integrated HVAC Engineering, this fall. The course is capped at 50 students with 30 discount seats. Read the full course outline here.

ASHRAE, the American Society of Heating, Refrigerating and Air-Conditioning Engineers, is a global society focused on building systems, energy efficiency, indoor air quality, refrigeration and sustainability within the industry. Through their research, standards writing, publishing and continuing education, ASHRAE helps shape today’s built environment.