Anti Freezing Solar Panels

Superior frost protection for all solar panels.

Anti freezing solar panels.

The advantage of a drain back system is built in freeze and overheating protection. To my surprise and concern is the cost of anti freeze for this type of system is huge. You have to pay attention to how they re working. Solar water heating panels can freeze up in the winter.

Dubbed an anti solar panel by some the device has the potential to bridge the gap left by solar energy collecting energy from the night sky. A drain back solar system is a non pressurized volume of water in a closed circuit that as the name implies drains back from the panels down to a storage tank at the end of every heating cycle. These are the top quality american made frost protection valves that guarantee reliable long lasting protection of solar hot water services. In this case the anti freeze would need to be compatible with the pex tank lining pump and propane hot water heater.

Do we really need this anti freeze valve. 5 litres solar antifreeze. Don t risk losing one or more of your solar collectors from a random frost this winter. If you live in south florida or anywhere that doesn t have freezing conditions the answer is no.

While it would be a closed loop system it would still require a considerable amount of anti freeze. Scaling may also cause valve and pump failures on the potable water loop. Neat propylene glycol with additive package. In systems that use other types of heat transfer fluids such as glycol an anti freeze scaling can occur on the surface of the heat exchanger that transfers heat from the solar collector to the domestic water.

Many new solar thermal heating systems get around the freezing problem by using some form of anti freeze but there are still a good number of existing and new systems that still use. You face equipment challenges in freezing weather. Recommended dilution 40 providing total volume of 12 litres for use in solar systems. Should be sufficient for most single and double panel systems.

So what to do i. These valves do not fail they do not leak they just reliably protect your solar panels for a very long time.