In 2005 the Building Regulations introduced the new Part L demanding all new boilers installed to be categorized as high efficiency systems. This includes condensing boilers and combination (also known as combi) boilers which use a secondary heat exchanger (or an extra large single heat exchanger) to recoup the heat that would otherwise be expelled into the atmosphere via the boiler flue. The new Building Regulations Part L also called for heating controls, system insulation and hot water cylinders among other components to improve their respective energy efficiency levels.
The new high efficiency heating unit introduced a new level of professional requirements from the system designer and the operative installing it. Each part of the system (such as the boiler, the radiators, the hot water cylinder and the heating controls) is fully integrated with the other components, to maximize the system's efficiency and heating output. As such, the design has to account for each component's specific set up and consider their input and output demands.
Industry research calculated that since the introduction of part L of the building regulations, the savings of carbon emissions made by the UK domestic heating market have been substantial. Recently conducted research puts the amount of carbon emission reduction at around 2.4 million tonnes. The researchers further calculated that if the industry did not apply the new Part L requirements, and continued installing SEDBUK D rated boilers, the carbon emissions from domestic heating would have grown by over one million tonnes since 2005.
At current levels there is still large potential for reducing the carbon emissions generated by the domestic boilers in the UK. There are around four million old boilers which are significantly less efficient than modern SEDBUK A rated boilers. Replacing such old boilers with an A rated boiler can reduce carbon emissions by around 30%. Each home in the UK produces an average of 5 tonnes of CO2 per annum. Across the whole population, domestic heating accounts for around 16% of the UK's CO2 emissions.
The government is trying to encourage carbon reducing behaviour within the home heating sector. It has scrapped stamp duty for carbon neutral homes and has introduced the home information packs which have an energy performance certificate as part of the pack. However, the stamp duty benefit does not apply to the vast majority of inefficient homes around the country making it less effective. The home information packs (with their energy performance certificate component) also have drawbacks in that they are only produced when the house is sold, and thus not having enough of an impact at other times to encourage reduction in carbon emissions.
Other levers that can be pulled to reduce carbon emissions from domestic heating in the UK are related to renewable and sustainable energy. The government plans to build around 3 million new homes between now and 2020. If just 10% of these new homes use solar thermal heating or heat pumps along with traditional (gas or oil) boilers, around 150,000 tonnes of carbon emissions would be saved annually.
A combination of legislation and education can help the government achieve stretching targets of reducing the nation's carbon emissions. By following training professional development guidelines, the UK plumbing and heating industry is widely ready for the market to steady and move towards more energy efficient systems and renewable energy technologies.
The new high efficiency heating unit introduced a new level of professional requirements from the system designer and the operative installing it. Each part of the system (such as the boiler, the radiators, the hot water cylinder and the heating controls) is fully integrated with the other components, to maximize the system's efficiency and heating output. As such, the design has to account for each component's specific set up and consider their input and output demands.
Industry research calculated that since the introduction of part L of the building regulations, the savings of carbon emissions made by the UK domestic heating market have been substantial. Recently conducted research puts the amount of carbon emission reduction at around 2.4 million tonnes. The researchers further calculated that if the industry did not apply the new Part L requirements, and continued installing SEDBUK D rated boilers, the carbon emissions from domestic heating would have grown by over one million tonnes since 2005.
At current levels there is still large potential for reducing the carbon emissions generated by the domestic boilers in the UK. There are around four million old boilers which are significantly less efficient than modern SEDBUK A rated boilers. Replacing such old boilers with an A rated boiler can reduce carbon emissions by around 30%. Each home in the UK produces an average of 5 tonnes of CO2 per annum. Across the whole population, domestic heating accounts for around 16% of the UK's CO2 emissions.
The government is trying to encourage carbon reducing behaviour within the home heating sector. It has scrapped stamp duty for carbon neutral homes and has introduced the home information packs which have an energy performance certificate as part of the pack. However, the stamp duty benefit does not apply to the vast majority of inefficient homes around the country making it less effective. The home information packs (with their energy performance certificate component) also have drawbacks in that they are only produced when the house is sold, and thus not having enough of an impact at other times to encourage reduction in carbon emissions.
Other levers that can be pulled to reduce carbon emissions from domestic heating in the UK are related to renewable and sustainable energy. The government plans to build around 3 million new homes between now and 2020. If just 10% of these new homes use solar thermal heating or heat pumps along with traditional (gas or oil) boilers, around 150,000 tonnes of carbon emissions would be saved annually.
A combination of legislation and education can help the government achieve stretching targets of reducing the nation's carbon emissions. By following training professional development guidelines, the UK plumbing and heating industry is widely ready for the market to steady and move towards more energy efficient systems and renewable energy technologies.
About the Author:
Tal Potishman, memberof Heating Central, writes articles about plumbers, central heating, London boiler, underfloor heating and solar thermal. He specializes in helping save money by advising on efficient heating.
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