As you will presumably understand, my "opinion to the contrary" was expressed when I was assuming that "the burner" was just the burner (as it would be in my ancient gas boiler). We have now been told that "the burner" includes most of the electrical parts of the boiler, and so my opinion has obviously changed!
I'll let you off this time, but don't do it again
Too be fair I was unclear as well, hence why I asked..