Difference between revisions of "Heating"
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The UK government position on gas boilers is ambivalent; they will not be allowed for '''new''' build houses from 2025, yet under the Energy Company Obligation (ECO) scheme new condensing gas boilers are provided to qualifying households for free, or at a subsidised rate. policy for reducing CO<sub>2</sub> emissions attributable to domestic heating - namely spacing heating and domestic hot water. Clearly, with a new house building rate of ~250,000 and ~25 million dwellings in the UK it would take at least a hundred years to replace the entire housing stock with decarbonised 'all-electric' technology. Presumably there would have to be an accelerated program to replacing gas heating with electrical heating, in particular [[Ground Source Heat Pump|Ground Source Heat Pumps]] and [[Air Source Heat Pump|Air Source Heat Pumps]] | The UK government position on gas boilers is ambivalent; they will not be allowed for '''new''' build houses from 2025, yet under the Energy Company Obligation (ECO) scheme new condensing gas boilers are provided to qualifying households for free, or at a subsidised rate. policy for reducing CO<sub>2</sub> emissions attributable to domestic heating - namely spacing heating and domestic hot water. Clearly, with a new house building rate of ~250,000 and ~25 million dwellings in the UK it would take at least a hundred years to replace the entire housing stock with decarbonised 'all-electric' technology. Presumably there would have to be an accelerated program to replacing gas heating with electrical heating, in particular [[Ground Source Heat Pump|Ground Source Heat Pumps]] and [[Air Source Heat Pump|Air Source Heat Pumps]] | ||
| − | Reducing energy demand, through improvements to [[Home Insulation]] | + | Reducing energy demand, through improvements to insulation can be cost effective, in this [[Home Insulation|Home insulation case study]] potential savings of around |
== Commercial Heating == | == Commercial Heating == | ||
Revision as of 16:08, 10 December 2019
Domestic Heating
A typical Energy Performance Certificate (EPC) carried out to the standard assessment procedure (SAP) identifies energy saving measures already taken and those where there is further scope for reducing energy consumption and CO2 emissions. This provides a convenient summary of policies the UK government are promoting; they break down into three categories:
- Improved home insulation to reduce the energy consumption for a given comfort level:
- Cavity wall insulation (where feasible)
- Loft insulation (or additional insulation to 270mm)
- Floor insulation (where feasible)
- Additional 80 mm jacket to hot water cylinder
- More efficient heating technology
- Upgraded controls
- Change heating to a gas condensing boiler
- (Thermal) solar water heating
- Electricity saving or generating
- Low energy lighting i.e. LEDs
- Solar photovoltaic panels
The UK government position on gas boilers is ambivalent; they will not be allowed for new build houses from 2025, yet under the Energy Company Obligation (ECO) scheme new condensing gas boilers are provided to qualifying households for free, or at a subsidised rate. policy for reducing CO2 emissions attributable to domestic heating - namely spacing heating and domestic hot water. Clearly, with a new house building rate of ~250,000 and ~25 million dwellings in the UK it would take at least a hundred years to replace the entire housing stock with decarbonised 'all-electric' technology. Presumably there would have to be an accelerated program to replacing gas heating with electrical heating, in particular Ground Source Heat Pumps and Air Source Heat Pumps
Reducing energy demand, through improvements to insulation can be cost effective, in this Home insulation case study potential savings of around
Commercial Heating
Offices, public buildings, commercial premises and so on have similar heating requirements to homes - possibly similar solutions and benefitting from economies of scale
Industrial Heating
Industrial applications are more intractable especially where high temperature is required e.g. cement, steel, glass, ceramics manufacture