View Single Post
Old 09-25-17, 02:58 AM   #24
Apprentice EcoRenovator
Join Date: Nov 2011
Location: NC
Posts: 117
Thanks: 6
Thanked 26 Times in 24 Posts

Originally Posted by Ormston View Post
As the outside temperature falls you will get a lower and lower the COP will also fall until it is cooling not heating the house.
What you need to figure out is what outside temperature this will work down too before becoming useless.

Not quite in this instance. Since the unit is working solely indoors, it is also using heat from other sources. That outside air is first warmed before it hits the unit. It's measured COP should be about what it is rated at.
DEnd is offline   Reply With Quote
The Following User Says Thank You to DEnd For This Useful Post:
ecomodded (09-25-17)