BG came round yesterday to quote to replace our old 30 ry old gravity system (glow worm hide away) with a new combi.
After we explained our requirements and the extension proposed for the property they proposed the following boiler.

Worcester Greenstar 440 Highflow - 201/min, 60l primary store, twin tap operation.
So the best bit, with the removal of our old system, quite a bit of additional pipework, external bricking up, removal of all old tanks, new radiator valves and wirless control comes to - £4156 (boikler price in BG paperwork was £2.2k)

Thoughts and opinions on the quote please.

Mark