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u3b3rg33k · 08-31-18, 09:23 PM

heatpipes often have water vapor under partial vacuum in them as a cheap refrigerant. might account for the expansion.

08-31-18, 09:23 PM	#3
u3b3rg33k Apprentice EcoRenovator Join Date: Mar 2018 Location: Rustbelt, USA Posts: 114 Thanks: 5 Thanked 10 Times in 9 Posts	heatpipes often have water vapor under partial vacuum in them as a cheap refrigerant. might account for the expansion.