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house4u · 02-23-15, 02:53 PM

I used propylen glycol + water (40%) for my solar sysytem. This winter the lowest temp was -22C and everything is ok. But i know - someone who used alcohol 25% (vodka + water)

02-23-15, 02:53 PM	#24
house4u Lurking Renovator Join Date: Feb 2015 Location: Ukraine Posts: 17 Thanks: 1 Thanked 4 Times in 3 Posts	I used propylen glycol + water (40%) for my solar sysytem. This winter the lowest temp was -22C and everything is ok. But i know - someone who used alcohol 25% (vodka + water)