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

Amassing & Analyzing Zero Energy Building Data

Many believe that the future of net-zero energy is already here. At the forefront, the Net-Zero Energy Coalition is not only leading the movement, but also creating what their team refers to as “The Hub,” a place where all-things-Zero-Energy (ZNE) can be discovered. From research, to outreach resources, to case studies. Part of this exemplary resource […]

Geothermal HVAC Design: From Building Loads to Bore Field Design

Learn geothermal HVAC design fundamentals, with emphasis on building load (residential, commercial and institutional) development, leading to bore field specification.
Watch Al’s lectures (one introductory, the other highly technical), and download a Geothermal HVAC Design Performance Simulator excel file in his brand new, $45 HeatSpring course.

Who should enroll?

Engineers, HVAC contractors, building owners, and those who […]

GRID Alternatives’ International Program Expands to Nepal

In July, HeatSpring published a Sustainable Women Series article featuring the Founder and CEO of GRID Alternatives, a national non-profit that facilitates affordable solar power projects, oftentimes in low-income communities. In this follow-up article, I spoke with Jenean Smith, the Director of the International Programs at GRID Alternatives, whose working on a 16 kW solar […]

Building Automation Systems and Open Building Systems: Design Specs

Building Automation Systems (BAS) specifications are a required piece of any building construction, upgrade or retrofit project.
Learn about Building Automation Systems and Design Specifications for Open Building Systems in Ron Bernstein’s latest course.

Typically developed by a consulting engineer, a good specification can significantly enhance the effectiveness and usability of a project. A bad specification can […]

Water in Sustainable Building: Distribution, Uses & “Zero Net” Strategies

In this free course, sustainable building expert Ann Edminster discusses the uses of water in sustainable building practices.
Enroll and learn about…
-The distribution of water on Earth
-How water gets to and leaves building sites
-How water is used on building sites
-Getting to “zero net” water with strategies, including:
Indoor efficiency, outdoor efficiency, storm water use, rainwater use, grey […]