Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
Peak COP and year average COP is quite different. You'll never get the higher COP when producing hot tap water in the summer. Also a some brands don't include the power consumed by the circulation pumps when calculating COP :(

I've never heard someone reporting a year average COP of more than 4. Still, when already at 3.5 or so, higher COPs mater less and less. The difference in savings from 2 to 3 is huge, from 4 to 5 is miniscule in comparisation.

by jkirkebo (jkk@scm.no) on Tue Jul 11th, 2006 at 04:05:49 AM EST
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