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PaleMelanesian · 01-26-12, 08:22 AM

It depends a lot on the system. My old central heat pump could handle freezing but not much lower. The new central heat pump is good at least to 25F, the coldest we've had this year.

01-26-12, 08:22 AM	#3
PaleMelanesian Apprentice EcoRenovator Join Date: Sep 2008 Location: Texas Posts: 118 Thanks: 4 Thanked 10 Times in 9 Posts	It depends a lot on the system. My old central heat pump could handle freezing but not much lower. The new central heat pump is good at least to 25F, the coldest we've had this year.