Rod Hyatt Archive
Drainback and pressure systems
A drainback solar design may be easier and less expensive, but the decision to go with drainback or the more popular pressure-glycol system depends on the building.
Solar thermal design
Like automobiles, solar thermal designs have become sleeker and more efficient over the decades. You wouldn't expect today's performance out of a 1964 Mustang, just like you wouldn't
Bad solar-thermal designs not only cost customers money, but can do permanent damage to the solar industry we all love.
Commercial solar HW
1970s-era solar thermal designs are still common, although today's technology makes solar hot water more efficient and less expensive.
Data logging/solar controls
Check out the data logs for Rod's own residential system. Satisfying curiosity is one of the many advantages to tracking your system's performance.