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Old 09-13-17, 09:37 AM   #9
NiHaoMike
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Quote:
Originally Posted by Piwoslaw View Post
[*]I may freeze a few liters of water just for thermal mass, but I could also look into some material which changes phases at freezer temps. Any ideas?
Add something like salt or propylene glycol to the water to lower its freezing point.
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