In reply to Jed Rothwell's message of Fri, 22 Jul 2022 16:11:24 -0400: Hi, [snip] >Some people call the gain the "COP," but I think that is technically >inaccurate. That means "coefficient of production." As far as I know it >only applies to heat pumps. They do not create any energy, as I am sure >everyone here understands.
However the COP of a heat pump sometimes/often exceeds 2.7, so it's debatable how useful this device will be by comparison. If no one clicked on ads companies would stop paying for them. :)
