Green Building

Zero net energy, geothermal heat pumps, hydronics, building science, HVAC engineering, high efficiency boiler systems, passive house. We write regularly on technical issues related to green buildings and offer some amazing free tools to help you stay in the loop.

Building Science, Zero Net Energy, Passive House, and Roofing

Hydronics, Boilers, and Environmental Quality & HVAC Engineering

Renewable Thermal: Geothermal Heat Pumps & Biomass

New Format for Deep Energy Retrofits by Marc Rosenbaum

We’ve just released a new version Marc Rosenbaum’s renowned Deep Energy Retrofits Course. Instead of a scheduled session which happens once a year, this course is now offered as a self-study on demand course which students can begin anytime.

We’ve replaced hand-graded assignments with quizzes and self-study work, which in turn made it possible for us […]

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 […]

Grow Your Green Building Skillset Online — From Design to Retrofits

From building science to retrofits, energy modeling, smart homes, and beyond, HeatSpring offers a comprehensive marketplace of green building courses. Join your expert instructors for weeks of top notch technical training.

Deep Energy Retrofits – Upgrade existing residential and commercial buildings up to 45,000 square feet. From building assessment to heat and airflow calculations and beyond, you’ll […]

Fostering Sustainability in Prisons + Reducing Emissions/Consumption

How can prisons act as a catalyst for sustainability efforts? In 2003, Dan Pacholke, Superintendent of Cedar Creek Corrections Center in Washington, attempted to answer that question by implementing rainwater harvesting and composting measures designed to reduce waste, cut costs, and create work for inmates. That same year, Dr. Nalini Nadkarni, a professor at The […]

Deep Energy Retrofits for Historic Buildings

Historic buildings are a special case in the world of Deep Energy Retrofits, as they bring additional constraints and special structural issues to the forefront. Still, bringing a beloved (but usually energy inefficient) community building into the resource climate of the 21st century is incredibly rewarding.

In this course, designed for architects, engineers, builders, and owners/operators […]