Blog: Solar Components

Over-dilution of formulated glycol heat transfer fluid (HTF) causes corrosion problems. The reason for this is insufficient concentration of corrosion inhibitors and insufficient pH buffering capacity will form acidic compounds when they oxidize which causes thermal degradation. Over-dilution also causes bio-degradation as discussed during the...

A small amount of boiling (in a solar collector that is stagnating) won’t immediately damage the glycol fluid itself, but if a formulated glycol-based heat transfer fluid (HTF) is subjected to boiling temperatures then the ensuing vaporization that occurs will necessarily cause many of the additives (corrosion inhibitors, pH stabilizers...

The intent of Ask Caleffi, was to make it as easy as possible for installers and contractors to understand and utilize our products. One of those products is our line of iSolar controllers. We understand that plumbers, solar installers, and hydronic experts are not all controls experts. With this in mind, over the past year here at Caleffi, we have...

Stranded wires can be an obstacle and a hazard on the job site when making connections to small terminals, like those found on products such as the iSolar™ controller and ...