Online educational resource on achieving indoor environmental quality with radiant based HVAC systems
Not for profit educational resource on indoor environmental quality.

Over 1300 copies given away to date - get yours today.

Thermal Comfort Principles and Practical Applications for Residential Buildings
by Robert Bean, Fellow ASHRAE, Distinguished Lecturer, Retired Engineering Technology Practitioner

Three Key Principles:

Heat loss and gain calculations are not thermal comfort calculations.

HVAC design in of itself is not thermal comfort design.

HVAC contracting in of itself is not thermal comfort contracting.

Download the book for the details of what thermal comfort design is all about.

Popular Topics
Alliesthesia & Homeostasis
Academic Scores due to IEQ
Advice for Consumers: Radiant
Aging: Thermal Comfort & IAQ
ASHRAE 62.2 2011 vs. 2013
Bathroom Fans: Renovation
Being an Engineer
Bibliography: Radiant/Comfort
Bibliography: Indoor Air Quality
Budgeting: Indoor Climates
Budgeting: Design Services
Building Efficiency Categories
Building Enclosures, Part I
Building Enclosures, Part II
Building Orientation
Built to Code: Means what?
Building Science w/ SEM

Concrete & Embedded Pipes
Comfort: A Condition of Mind
Comfort or Energy Efficiency?
Conduction Animation
Consulting Services (ICCI)
Control Valve Theory
Convection Animation
Dedicated Outdoor Air System

Design: Before You Start
Design: Downward heat loss

Design: Sample Commercial
Design: Sample Residential
Design: Sample Schematics
Duct Tape: Not for Ducts
Earth Tube Heat Exch.'s
Effectiveness Coefficients
Efficiency: Boilers
Energy/Exergy Efficiency
Engineers: Do I Need One?

Engineers: Residential Fees
Embedded Pipes in Concrete
Ergonomics & Productivity
Exergy & Sustainability
Exposome: An Introduction
Filter Fist-a Cuffs
Floor Temperatures
Flooring R values
Flooring and Boiler Efficiency
Forensic Services
Health and HVAC systems
Heat Transfer: Introduction
Heat, Air, Moisture Modelling
Heated Hardwood Flooring
History of Radiant Heating

History of the HRV/ERV
Human Factors
Human Thermal Plume
Humidity & the Environment
HVAC & Energy Efficiency
HVAC Does Not Equal IEQ
Hybrid: Landmines to Avoid  
Hybrid HVAC Systems 
Hydronics:Codes & Inspections
IAQ Health Diagnostics
IAQ Investigator
IAQ VOC Simulator
IEQ and Energy
IEQ and Health
IEQ and Productivity
IEQ Research
IEQ Residential
IEQ Self Assessment Form
Indoor climate system scores
Integrated Design: Project Ove
Integrated Design: illiteracy
Kitchen Range Hoods
LED Lights & Lamps
Lifetime Housing
Mean Radiant Temperature
Moisture Monitoring
Operative Temperature
Organisms in Your Home
Passive Heating
Passive Cooling
Paying for Downgrades
Radiant Animation
Radiant Based HVAC Guide
Radiant Cooling, Introduction
Radiant Cooling, Projects
Radiant Cooling, Calculation

Radiant Cooling Systems, Pt 1
Radiant Cooling Systems, Pt 2
Radiant Cooling Systems, Pt 3
Radiant Cooling Systems, Pt 4
Radiant Cooling Systems, Pt 5
Radiant Cooling Systems, Pt 6
Radiant Cooling Systems, Pt 7
Radiant Design Guide Level 1
Radiant Design Guide Level 2
Radiant Design Guide Level 3
Radiant Enables Efficiency
Radiant Facts and Myths
Radiant Flooring Guide
Radiant Gone Wild
Radiant History, 1868 A.D.
Radiant History, 1500 B.C
Radiant Mistakes to Avoid
Radiant Theory
Radiant Tube Depth: Effects

Radiant Walls for Retrofits
Radiation Pressure of Light
Reflective Insulation: Myths

Relative Humidity
Six Rules for Designers
Snow Melting Storm Data

Temperature Indices
Temperatures: Inside Surfaces
Thermal Comfort
Thermal Comfort for Auditors
Thermal Comfort Calculator
Thermal Comfort & IAQ
Thermal Comfort Myths
Thermal Comfort: Principles
Thermal Comfort: Endocrine
Thermal Comfort: Perspective
Thermal Comfort Survey Part I
Thermal Comfort Survey Part II
Thermal Manikins: Research
Thermostats: Setback
Thermostats vs Skin Sensors
Vocabulary of Thermal Comfort
Toxic Homes (CARP)
Transient Soil Temperatures
Under slab insulation
Validating Designs
Water Heater Efficiency
Water Heaters as Boilers
Windows for Cold Climates
Walls for Cold Climates
Zoning a Building Guide

Building and IEQ Wisdom
28 bits of wit, wisdom & witticisms

“…a rational calculation of heating and air-conditioning systems must begin with the conditions for comfort…”
Prof. P.O. Fanger

"Current building codes do not specify criteria for IAQ; they simply mandate the capacity of the ventilation system"
National Research Canada

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Website statistics 2012

The Carlson - Holohan Industry Award of Excellence

Next year will be our 20th year anniversary, first  stablished in 2004 as an educational experiment.

Energy & Indoor Environmental Quality - News


Dealing with Wildfire Smoke

CoVid Program for Alberta and British Colombia Educational Facility Design Professionals and Managers

How to set up an emergency CoVid19 isolation room in your home, condo or apartment.

North American Version
India Version

Simplified and Idealized Illustration of a Portable Fan/Filter (Corsi Rosenthal) Box in a Classroom
North American Version

Sign the Petition
WHO must raise the alarm to the dangers of aerosol transmission

Carlson-Holohan Industry Award of Excellence Finds Permanent Home in an American Institution.

New feature page: Humidity: An Important Nexus in Indoor Environmental Engineering

Design for People - Good Buildings Will Follow

Historical figures in indoor environmental quality, Hippocrates, Vitruvius, Nightingale and Galton

Since the times of Hippocrates, Vitruvius, Nightingale and Galton, the health sciences and building sciences have studied energy and indoor environmental quality.

Do you really know what thermal comfort is?Thermal plume courtesy of Prof. Gary Settles (PSU)
Image Credit:© Dr. Gary Settles

The fundamentals of thermal comfort Using thermography to show the thermal signature of baby on a cold floor
Image Credit: ©Dr. ArthurTucker/SPL

Room thermostats vs your own thermostats
Over 160,000 thermal sensors versus a $20 thermostat...can you see the problem?
Image Credit: © Martin Dohrn / SPL

Modelling thermal comfort
Screen shot from ASHRAE 1383 Software

What makes a building comfortable?
A study in mean radiant temperature
Finite Element Analysis of two wall assemblies. Image credit © Bean / Posey.  Blue is the outer surfaces. Notice the cold penetrating the wood stud in the bottom image but not in the top image.

How will your indoor climate system score?Where will your indoor climate system score?

Building sciences: Scanned electron microscope (SEM) images of materials of construction 

Flooring Guides

365 Day Transient Soil Temperature Analysis
Finite Element Analysis of hourly temperatures around a foundation in Calgary, Alberta

Other Resources
Indoor Air Quality @ Home
Quotes on IEQ
Suggested Resources
For the kids
Indoor Air Quality 
IAQ Research Resources

Dr. Jessica Green, Microbes: Buildings are complex ecosystems 

Dr. Charles J. Weschler, Healthy Buildings Research: New Developments, Future Directions and Potential Solutions

Still available for 2022/23
Project Counselling Services
Past Clients

40+ years of experience working with clients on project planning, design and management. Bean is frequently quoted in news publications including the Washington Post, Bloomberg News, Wall Street Journal, ASHRAE Journal, HPAC Magazine, ProBuilder and many others.

Wall Street Journal Video Interview with
Robert Bean
Why Your Office Feels So Cold

ASHRAE Journal Podcast on Thermal Comfort with ASHRAE Fellows Robert Bean and Peter Simmonds, Ph.D.
Thermal Comfort in the Real World

IAQ Radio Interview: What you see is what you get...Bean's no BS observations on
Architecture, building science, IAQ and CoVid19

Site established in 2004
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Important Consumer Bulletin
Joint statement by Canada's HVAC Trade Associations on the quality of designs, installations and inspections of residential HVAC systems.
ASHRAE focus on residential sector.

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Scheduled Program for 2014
Integrated HVAC Engineering: Mastering Comfort, Health, and Efficiency.

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