As someone who works in the HVAC industry, this doesn't really seem to be the way forward. What we need much more of is better overall system design - most of you will probably be unaware that your condensing boiler never actually condenses anything as condensation occurs at around 50C and below, and the UK unfortunately is nearly all specced for 80C, at which water does not condense. This is tip of the iceberg, and the company I work for fights very hard to bring us closer to Danish standards, which are generally super efficient, as are their products.
Furthermore, they should be more interested in controlling the heating inside based ont he temperature outside.