If your gas boiler is over 10 years old, you could be wasting money on your energy bills. With 55% of energy bills spent on heating, increased efficiency makes all the difference. Upgrading your G-rated boiler to an A-rated system could save you hundreds of pounds a year.
Eco Energy Source new gas boilers are all condensing boilers. Condensing boilers have larger heat exchangers than older boilers making them much more efficient.