Solar Thermal


Solar thermal systems use the sun to heat hot water. According to a recent SEPA study, the residential solar thermal market is a $123 billion dollar market. The commercial market is expected to grow by 20% per year.

Free Tool: Solar Thermal Design & Installation 101 (PDF)
Free Tool: Vaughan Woodruff’s Solar Heating Basics Guide (PDF)

Six Drainback Questions for Radiant Heating Pros to Consider

Vaughan Woodruff answers student questions regarding drainback systems on the Solar Approaches to Radiant Heating discussion board…
Student 1: I have several questions on drainback systems for you…

Question #1
When the solar storage tank has satisfied and the system goes into drainback, what happens at the collector? 

Question #2
How hot does the collector get when it is empty?
Does this […]

Download the Free Solar Heating Basics Guide

Download the Free Solar Heating Basics Guide
Used in Vaughan Woodruff’s Solar Approaches to Radiant Heating course.
Solar Approaches to Radiant Heating is for serious professionals with relevant experience. You’ll learn the latest, most advanced concepts for integrating solar with radiant heating systems. This course is self-paced (so you don’t have to be logged in at a particular time), but […]

Free Lecture: “The History of Solar Thermal in the United States” with Bob Ramlow

This is a fun 40-minute lecture that provides historical context for where solar hot water – solar thermal – is today. Bob also shares some insights about which types of customers are the best fit for solar hot water, and some resources to learn more. Register for the free lecture here.
Nobody has been more influential […]

Using Solar to Heat – Net Metering Makes a Difference

In the article below, Vaughan Woodruff, Expert Instructor, Solar Approaches to Radiant Heating, outlines a response to a student who recently asked a question regarding the use of solar electricity for heating and how advances in battery storage might impact the suitability of using solar electricity to provide heating.
“Even though grid-tied electric battery storage is less efficient, is it […]

3 Reasons Your PV System Load Profile is Overinflated and How to Fix It

The article below is a discussion from our course, Batteries in Solar PV Systems, led by Christopher LaForge. Christopher LaForge is the CEO of Great Northern Solar and a NABCEP certified photovoltaic installer. He has been designing, specifying, and installing systems since 1988.

Takeaways:

The Energy Master Program is a great tool to work out a design for […]