Condensing Boiler Faults
The condensing boiler is now classed as the standard type of boiler, gone
are the days of the old style boiler where around 40% of the energy was lost through the flue.
With the condensing boiler, only around 7-8% is now lost through the flue.
Once you have your old non-efficient boiler replaced with a
new boiler you should see a difference in your gas[...]