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

Heat Pumps 101: Three Modes of Heat Transfer

This is the third in a series of Heat Pump 101 videos from instructor and author, John Siegenthaler, P.E.. “Thermodynamic Basics” was the previous lesson in the series. You can enroll in John’s Heat Pump 101 course for free to learn the very basics of heat pumps in less than an hour.

The three modes of […]

May 23rd, 2023|Categories: Building Science, Free Courses, Heat Pumps, HVAC Design|Tags: |

Heat Pumps 101: Thermodynamic Basics

This is the second in a series of Heat Pump 101 videos from instructor and author, John Siegenthaler, P.E.. “The Difference Between Energy & Power” was the previous lesson in the series. You can enroll in John’s Heat Pump 101 course for free to learn the very basics of heat pumps in less than an […]

May 17th, 2023|Categories: Free Courses, Geothermal Heat Pumps, Heat Pumps, Hydronic Heating, Zero Net Energy Buildings||

New Free Webinar Announcement: Home Assessments for Decarbonization

Electrification of existing homes is a hot trend, and rightfully so with all the latest incentives for residences and businesses to transition to electric. Anyone working in the retrofit field is likely – sooner or later – to be asked to help a homeowner with this process. While it can be straightforward, more often it […]

Heat Pumps 101: The Difference Between Energy & Power

This is the first in a series of Heat Pump 101 videos from instructor and author, John Siegenthaler, P.E.. You can enroll in John’s Heat Pump 101 course for free to learn the very basics of heat pumps in less than an hour.

Transcript, “The Difference Between Energy & Power”:

Let’s look at some basic concepts from […]

New Free Webinar: Unconventional Solar Applications

While we know solar can be a great way to reduce energy costs for your residence or business, there are so many ways to apply solar technology to projects outside the standard use cases. If you’ve worked in the solar industry for a while, you’ve undoubtedly had a friend or acquaintance ask you your thoughts […]