Building & Powering an Award-Winning Net Zero Energy Home

Can a home be beautiful, powered entirely by solar energy, use sustainable heating and cooling systems and save it’s owners roughly $3,500 a year? Why, yes it can. Just ask Joanne Coons, who built her award winning, single-family, Net Zero Energy Home in 2010. Sustainable Woman Joanne talks Net Zero standards, efficient appliances and goods, her […]

Venting About Ventilation

There is much debate within the building science community about how much ventilation is enough.
Building science as a discipline has to deal with a lot of messy, noisy data, entrenched mythologies, and strong tendencies towards confirmation bias.

On the other hand, public health as a discipline has to deal with a lot of messy, noisy data, […]

The Emerging Importance of Carbon Dioxide for Healthy IAQ

Twenty years ago a colleague gave me a portable carbon dioxide (CO2) monitor to use during my training sessions. These sessions were often in small, inadequately ventilated rooms loaded with too many breathing trainees. Tony suggested that I try to determine at what CO2 level I noticed my trainees’ attention started drifting away. After following […]

Health & Well-Being through Architecture, Building Science & HVAC Design

Playing with Fire: Homeostasis and Alliesthesia Considerations in Architecture, Building Science and HVAC Design
Copyright © Robert Bean, R.E.T., P.L.(Eng.) for HeatSpring

Most people employed in the world of architecture, building science and HVAC understand the need for spaces which are thermally acceptable to the majority of occupants. But, as repeatedly demonstrated from my informal research, it appears […]

Q+A with Solar Thermal Expert Bob Ramlow: Hard Water Issues, PV Powered Solar Thermal and Air Venting

Bob Ramlow answers student questions about solar thermal. He tackles hard water, PV powered solar thermal systems, and best practices for air vent installations.

Is hard water an issue with closed loop solar thermal systems?
Are solar PV powered solar thermal systems cheaper and easier to operate then traditional powered ones?
What are the best practices for placement of automatic air vents in solar thermal systems?

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