If your boiler is over 10 years old you could be wasting up to half the gas you buy!
Choosing a heating system with a high efficiency condensing boiler with the correct heating controls can make a huge difference to your heating bills over time.
The type of boiler you need will depend on a number of factors, such as the size of your house and your hot water requirements.
Click on the type of house you live in to see the range of boilers available:
|Type of property||
|EXAMPLE RECOMMENDED NEW BOILER**|
If it's 10-15 years old then it probably isn't. Replacing your old boiler with a new condensing boiler can save you around a third on your heating bills straight away.
Around 60% of CO2 emissions from your home are down to your boiler. With an efficient new boiler you could save up to 875kg of CO2 and £130 a year.
Add in a full set of heating controls as well as a new boiler, and you could increase the total savings to around £250 and 1.7 tonnes of CO2 a year.
Most of us are familiar with the main parts of a central heating system: the boiler, the radiators and the piping that connects it all. The boiler heats the water and this is usually circulated through the pipework and radiators by a pump, before returning to the boiler. From this basic arrangement a number of different systems and boilers have been developed; below you'll find a guide to the 3 types most commonly found in British homes.
You've probably heard of the term 'condensing boiler' and you may be thinking how does it fit with the 3 boiler types we show?
Essentially, a condensing or High Efficiency boiler can be a combi, system or open vent boiler. Condensing boilers work on the principle of reusing heat that would normally be rejected into the atmosphere from the flue of standard efficiency (non-condensing) boiler.
As a result, the temperature of the gases from the flue of a condensing boiler is typically 50-60°C compared with 120-180°C in a current non-condensing boiler. This creates a condensate (hence the name 'condensing'), which is harmlessly expelled as vapour through a flue and as liquid through a convenient drain point.
All new boilers sold in the UK must be High Efficiency Condensing models.
This is the most popular type of boiler in the UK, now found in around 70% of homes.
Combi boliers provide central heating and hot water without the need for a separate tank to store water; hence you can easily tuck them away under the stairs or in kitchen cabinets.
They are most suited to: Homes with one bathroom, households with single people, couples, families with one child Usually available in following outputs: kw 24 30 35
A system boiler (sometimes known as a 'sealed system') provides central heating and hot water via a storage cylinder housed in an airing cupboard - no need for water tanks in the loft, as with an open vent boiler.
Most suited to: Larger homes with multiple bathrooms/ensuites; families. Usually available in following outputs: kw 12 15 18 24 30 38
Open vent boilers are a peculiarly British invention. An open vent (sometimes known as heating only) provide central heating and hot water via a boiler, a storage cylinder housed in the airing cupboard and water tanks in your loft. If you're looking to do a full system overhaul most people opt to remove the tanks from the loft and turn their open vent system into a sealed system.
Most suited to: Larger homes with an existing open vent boiler. Usually available in following outputs: kw 12 15 18 24 30 38
Save up to £1760 with an energy efficient boiler and new central heating system and cut your heating bills by up to 40% for years to come! More details >