ASHP SCOP=3 in uninsulated 1960s house!

[ReedRichards]

9 hours ago, richi said:

It isn't. And I can't see how you could possibly draw that conclusion—unless you didn't read my original post.

I both watched the video and read your original post.  But there are many "nuggets" in your original post that just aren't in the video and if you have to interpret a video with the aid of a whole load of extra notes and clarifications then it simply isn't a very good video and it leaves itself open to misinterpretation.