As part of its strategy to dramatically reduce CO2 emissions, the UK government has introduced the Code for Sustainable Homes. The code covers many important issues, but one of them has particular relevance to the plumbing and heating industry in the UK. It will impact both new building developments and existing building retrofits.
New properties already have to meet part L1A of the building regulations in force. This part determines a set target for carbon emissions that every new property has to meet. The property developers have to prove in advance that once fully built the property will generate CO2 emissions which is less than (or equal to) the target.
Launched in 2005, Part L1A set a target of 20% reduction in carbon emissions for new housing developments. The new Code for Sustainable Homes further builds on that to set a six-level basis of evaluation. Level one demands at least 10% carbon emissions reduction, with level six demanding 'Zero Carbon' buildings. By 2016, the government has set a target of 100% reduction in carbon emissions which is equal to level five.
The levels reached per dwelling are based on a points system, which evaluates each property according to the energy efficiency and carbon emissions of its components. A score of 57 is required for meeting level three, while not less than 90 points are required to meet level six.
It is fair to say that water heating systems currently available in the UK can meet the standard for medium levels within the Code. Still there is work to be done to make the heating systems efficient enough to meet the requirements for the top most levels, such as levels five and six.
One way of meeting the demand is by using renewable energy sources. For example, a level four in the Code requires a high ratio of such sustainable energy systems. Solar thermal systems are highly effective and emit virtually no carbon. Winter heating (when the days are short), will be supplemented by a gas boiler or a hot water tank with an immersion heater.
Although currently the code mainly talks about new build projects, experts urge the government to apply the code in retrofits as well. Replacing an old boiler with a new high efficiency boiler will reduce the carbon emissions but also will help the home owners reduce their heating bills. An A rated boiler, such as a modern condensing boiler will reduce the emissions and cut the heating bills by around 30%. Similarly, a well insulated hot water cylinder will cut the heat loss and reduce heating bills further, compared with an old inefficient cylinder.
It is likely that the Code for Sustainable Homes will influence the building regulations that are planned to be launched in 2010. As such, it is crucial that the Code is carefully worked out and that the UK heating industry is fully prepared for it well in advance to ensure a successful roll out.
Engineering and technological capabilities in the UK are high, giving the government comfort in the ability of the sector to roll out the high efficiency technologies. What's more, the new technologies become ever more attractive to the public as prices drop while performance levels improve.
New properties already have to meet part L1A of the building regulations in force. This part determines a set target for carbon emissions that every new property has to meet. The property developers have to prove in advance that once fully built the property will generate CO2 emissions which is less than (or equal to) the target.
Launched in 2005, Part L1A set a target of 20% reduction in carbon emissions for new housing developments. The new Code for Sustainable Homes further builds on that to set a six-level basis of evaluation. Level one demands at least 10% carbon emissions reduction, with level six demanding 'Zero Carbon' buildings. By 2016, the government has set a target of 100% reduction in carbon emissions which is equal to level five.
The levels reached per dwelling are based on a points system, which evaluates each property according to the energy efficiency and carbon emissions of its components. A score of 57 is required for meeting level three, while not less than 90 points are required to meet level six.
It is fair to say that water heating systems currently available in the UK can meet the standard for medium levels within the Code. Still there is work to be done to make the heating systems efficient enough to meet the requirements for the top most levels, such as levels five and six.
One way of meeting the demand is by using renewable energy sources. For example, a level four in the Code requires a high ratio of such sustainable energy systems. Solar thermal systems are highly effective and emit virtually no carbon. Winter heating (when the days are short), will be supplemented by a gas boiler or a hot water tank with an immersion heater.
Although currently the code mainly talks about new build projects, experts urge the government to apply the code in retrofits as well. Replacing an old boiler with a new high efficiency boiler will reduce the carbon emissions but also will help the home owners reduce their heating bills. An A rated boiler, such as a modern condensing boiler will reduce the emissions and cut the heating bills by around 30%. Similarly, a well insulated hot water cylinder will cut the heat loss and reduce heating bills further, compared with an old inefficient cylinder.
It is likely that the Code for Sustainable Homes will influence the building regulations that are planned to be launched in 2010. As such, it is crucial that the Code is carefully worked out and that the UK heating industry is fully prepared for it well in advance to ensure a successful roll out.
Engineering and technological capabilities in the UK are high, giving the government comfort in the ability of the sector to roll out the high efficiency technologies. What's more, the new technologies become ever more attractive to the public as prices drop while performance levels improve.