Is your drainback tank sight glass cracked? Here’s the solution
Here’s a service tip for those whose systems use an HTP drainback tank – specifically on the maintenance or replacement ...
Filling the pressure: Sizing an expansion tank correctly
Before you get to the exciting part, you’ll need a few basic details about your system. Here are some good ...
Incoming water temp can determine size of collectors, storage
As you get ready to design a solar thermal system for your home, there’s one factor you may not be ...
Designing a medium-sized commercial solar thermal system for apartment complex
Other posts have discussed light commercial systems for restaurants and other similar businesses. But what if you need a solar ...
This design for a light commercial thermal system is effective, simplified
I’m asked, more and more, to provide a solar hot water system design for light commercial systems. There is, indeed, ...
Drainback vs. pressure: A question for the ages
Pressure or drainback? That’s probably the question I get asked more than any other: Should I choose the more popular ...
Sizing home system based on temp of incoming water, with helpful chart
In recent years, I published a chart that helps size a solar hot water system for your home, but after ...
Commercial solar: With tankless water heater, you don’t pay to heat it ’til you need it
Here’s a new concept for commercial solar: a 250,000-Btu tankless water heater. It comes down to this simple philosophy: Don’t ...
Drainback with tankless is less costly, more efficient
Today, as part of our ongoing series of basic solar designs, we look at a drainback system using an efficient ...
Condensing boilers and baseboards: A great matchup
Do you need a more efficient (and expensive) modulating condensing boiler if you have baseboards? That was the question posed ...