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

Mike Duclos’s Passive VS Conventional Floor Planing + Sample Passive House Design (PDF)

Hydronics, Boilers, and Environmental Quality & HVAC Engineering

Free Course: How to Design & Sell Mod-Con Boilers with Roy Collver
Free Course: Achieving Hydraulic Separation in Hydronic Systems with John Siegenthaler
Free Course: Integrating ASHRAE HVAC Standards with Robert Bean
Free Course: Mastering the Outdoor Reset Curve with Dave Yates

Renewable Thermal: Geothermal Heat Pumps & Biomass

Free Course: Temperature Stacking in Thermal Storage for Biomass Heating Systems with John Siegenthaler

What makes construction challenging?

Working in construction can be very challenging. Why is this? HeatSpring instructor Amy Powell asks her teammates, colleagues, and trade partners to dive deep to get to the bottom of this question. 

She found that the majority of the challenges and experiences communicated ultimately boiled down to two things – communication and people. 

Skilled labor shortages. 

Onboarding. 

Motivating others. 

Initiating […]

New Free Course Announcement: Construction Communication Methodology

Construction communication methodology is a critical, yet rarely discussed, element that shapes the overall outcomes of a construction project and the experiences of those working there. With the countless timely needs that require our focus on construction projects, it can be difficult to be intentional about the way we communicate. Nonetheless, communication strongly impacts everyone’s […]

Air-to-Water Heat Pump training now Free for Members

Starting today, for a limited time, Air-to-Water Heat Pumps for Hydronic Heating & Cooling is free for HeatSpring Members. 

Air-to-Water heat pumps are up there with solar pv and energy storage on the list of ready-to-deploy technologies enabling our energy transition. No matter where you live, you’re going to see big incentives for heat pumps soon […]

The Basics of Heat Pump Water Heaters (HPWH) and Installation Considerations

The heat pump water heater market is a huge area for growth in the coming years. It’s estimated to grow from $1.6 billion in 2023 to $3.4 billion in 2033, at a rate of 7.9%. 

In July 2023, the US Department of Energy (DOE) proposed new energy efficiency standards for water heaters which they estimate will […]

July 27th, 2023|Categories: Free Courses, Green Building, Heat Pumps, Refrigerants, Sustainable Building||

Meeting the Demands of the Solar Plus Era: Why Shaw Solar is Launching their Distributed Energy Resources (DER) Electrical Apprenticeship Program

Based in Durango, Colorado, Shaw Solar can be described as a big fish in a small pond. Opening their doors back in 2006, they initially worked on residential and small commercial solar thermal and PV and some lead-acid battery storage. They are a member of the Amicus Solar Cooperative and a certified B Corp. Today, […]