Better way to control water UFH system?

[JohnMo]

Just now, Munchincocopops said:

Really interesting that you reduced gas consumption by over 50%, that is impressive and of course you know what you are doing.

Didn't at the time, all I knew was the heat loss of the house was supposed be x, but I was actually using twice that.  From there it was a voyage of discovery and learning. Plumbers weren't interested, it just the way it is!  I soon realised the boiler as in cycle on off mode continually.