Solar Panel Antifreeze

This is not automotive antifreeze which is a different substance ethylene glycol and is.

Solar panel antifreeze.

Recommended dilution 40 providing total volume of 12 litres for use in solar systems. Solar water heating systems that use an antifreeze solution propylene glycol or ethylene glycol as a heat transfer fluid have effective freeze protection as long as the proper antifreeze concentration is maintained. 5 litres solar antifreeze. Propylene glycol pg has become the most common heat transfer fluid used in closed loop solar heating systems that contain antifreeze.

Solar panels can also directly heat water by heating water filled pipes within the solar panels or by heating a transfer fluid such as antifreeze usually propylene glycol. Antifreeze fluids degrade over time and normally should be changed every 3 5 years. To prevent internal corrosion scaling and biological fouling all solaris products are formulated with reversibly evaporisable inhibitors which exceed astm d1384 standards. The photovoltaic solar panels or pv solar panels convert the sun s energy into electricity which then can be used to heat water.

Most solar thermal systems use antifreeze as the liquid to transport heat from the solar panel to the cylinder. However there are a few drain back systems that only use water. Should be sufficient for most single and double panel systems. It has a long track record over many decades in this application and is widely available from a number of sources.

The antifreeze is normally non toxic propylene glycol as opposed to toxic ethylene glycol. What type of solar system do you have is it sealed or drainback a correctly installed drainback system should not require antifreeze sealed systems require a good quality antifreeze that will not break down with the high temperatures of solar it should also be a premixed antifreeze it is no good injecting a small quantity of antifreeze into the system as it will not mix and so will not.