Tag Archives: Propylene Glycol

What type of coolant should you use for your solar system?

I just came across an interesting item describing the three most common types of coolant for solar hot water systems and some of their properties. The article seems to be written by the manufacturer so there may be a bit of bias, but it does highlight the issues inherent in coolant selection. It is short and easy to read.

Selecting a Glycol for Solar Thermal Applications