This is probably a daft idea, but I'd be interesting to see if there is any mileage in it! Combi boilers tend to work best in smaller properties, so for a larger property would it be possible (or make any sense) to have 2 combi boilers serving different parts of the house?
By "larger" I don't mean a mansion I mean a 4 bedroomed house with 3 showers!
Thanks for any thoughts on this.