Over 10 years old ?
If your Central Heating boiler is more than 10 years old, it may be time to think about replacing it with a new high efficiency model. Today’s boilers are much better than the old ones. They can heat water more efficiently meaning they use less fuel to do the same job. This saves energy & will save you money. In most cases the savings made from a more efficient boiler over the years will pay for the outlay
Efficiency is key
SEDBUK (Seasonal Efficiency of Domestic Boilers in UK)
is a method of calculating the efficiency of central heating [gas boiler, heating, high efficiency] boilers. It identifies the efficiency rating of boilers on an A-G scale, which is simple to understand & recognise.
Current building regulations stipulate that if you are replacing an old boiler, it should be replaced with one that is A rated. These are 90+% efficient & are all condensing boilers which are more efficient as they extract heat from the flue gases that all boilers produce. Water vapour in the flue condenses into droplets of water, releasing heat as it does. A condensate pipe is installed with the boiler for the condensed liquid to drain away. Non condensing boilers expel the gases directly into the air & this heat is wasted.