It very much can exceed 100% and it’s not a measure invented for click bait purposes.
Look up heat pumps. You can make things hotter by moving heat than you could by directly heating it by burning fuel.
Look up heat pumps. You can make things hotter by moving heat than you could by directly heating it by burning fuel.
Which is to say this is click bait, because saying it has a COP of 3.85 isn’t anywhere near as sexy, whilst being technically more accurate.