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To: goldworldnet who wrote (107655)	2/15/2021 2:14:46 PM
From: greg s	1 Recommendation of 110327

Heat pumps don't work in single digit temperatures. Not unless they have supplemental resistance electric coils installed like they do in colder areas.

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To: greg s who wrote (107657)	2/15/2021 2:36:00 PM
From: M. Murray	of 110327

I really don't know much about this subject but it would seem to me that if it got cold enough so that you need to add supplemental coils to a heat pump, wouldn't it be more efficient to use a furnace? TIA

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To: M. Murray who wrote (107658)	2/15/2021 2:50:52 PM
From: greg s	of 110327

It really depends on the winter temperature profile of a given location. In areas where it is regularly very cold you are correct. In areas where the majority of days would allow the heat pump to work with a few days being too cold, the "I squared R" supplimental heat might be a solution in using a heat pump. There are charts that can be used to determine this. It also depends on the balance point of a particular unit.

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To: greg s who wrote (107659)	2/15/2021 3:23:02 PM
From: M. Murray	of 110327

Very interesting. I grew up in Mn. where obviously, everyone has a furnace. I have lived in S. Florida since 1980 and the heat that comes from the A/C unit does fine during the days, or weeks where it gets really cold (by Florida's standards).

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To: M. Murray who wrote (107660)	2/15/2021 3:48:18 PM
From: Don Green	of 110327

M. Murray It is so odd how it can be so cold in so much of the country and so warm here ( S. Florida) considering the time of the year It should be in the 60's? Don

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To: greg s who wrote (107657)	2/15/2021 3:52:19 PM
From: goldworldnet	of 110327

Warmed up to 14 degrees and heat pump is blowing some warm air now. Single digits is past the tipping point. Tonight will be colder, but should get into the twenties in a couple of days. * * *

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To: Don Green who wrote (107661)	2/15/2021 3:54:45 PM
From: M. Murray	1 Recommendation of 110327

My A/C has turned on more today than it has in months. I was just outside doing a little watering etc. and it was quite warm. Thankfully we don't have the high summer humidity. And in Mn. I was talking to my sister and she said she lets her dog out and she pee's right outside the door on the deck. She won't even go down in to the yard. And is immediately scratching to get back in when she's done. That is cold!!

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To: Don Green who wrote (107661)	2/15/2021 4:19:14 PM
From: Wharf Rat	3 Recommendations of 110327



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To: Wharf Rat who wrote (107664)	2/15/2021 4:40:02 PM
From: Don Green	of 110327

Great weather resource, thank you for sharing Don

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To: Don Green who wrote (107656)	2/16/2021 10:35:55 AM
From: goldworldnet	1 Recommendation of 110327

My internet is going up and down with this crazy weather. Up for the moment... * * *

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