Ignorance of the UK heating industry.

I don't have a heat pump yet but follow this sub to suck up as much info as I can prior to getting one in the next year or so. So I was having our boiler serviced this week by a local guy who I've always been pretty happy with. At the end of the servicing he I threw in a comment about getting a heat pump in the future and his reply was "a heat pump wouldn't work in this house. If you get one you'd have to rip up all the floors and replace with underfloor heating. The heat pump manufacturers know that they don't work in most of the houses in the UK".

The thing that annoyed me most about this is that we had already discussed about how my system was running at a flow temperature of 53 deg. This conversation was prompted after he turned the cylinder up to 60 and the flow temp up to 65 "as it has to be above 60deg to kill legionella". I challenged that and he clearly had no clue about the legionella death rate vs time.

Now if I hadn't been a bit of a geek and done prior research I'd likely have taken what he said at face value - how are we ever going to complete our renewable energy transition with the heating industry spouting such fallacy to homeowners?!

In terms of our house it's large, has some UFH already and is pretty well insulated (all the big bits done, now in micro gains territory) and could stay suitably warm at a flow temp well below 50 deg if I didn't have to keep the stored water so high to kill legionella. I'd probably have to upgrade some Type 11 radiators to Type 21 or 22, but that's hardly difficult!