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Heat Pumps An introduction. What is a Heat pump?. A heat pump is a machine which is used to heat your house in place of a conventional fossil fuel boiler. . Renewable Heat?. Heat pumps use electricity to run. - PowerPoint PPT Presentation
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What is a Heat pump?
A heat pump is a machine which is used to heat your house in place of a conventional fossil fuel boiler.
Renewable Heat?Heat pumps use electricity to run.
For each kWhr or unit of electricity used the heat pump grabs hold of 2 or 3 units of heat from the air or ground.
The heat from the air / ground is renewable, it is replenished by the sun.
So this part is renewable.
As a result Heat pumps are a 50 -75% renewable heat source.
Samsung Monoblocs
• The EHS range of heat pumps will heat water up to 55C.
• Available in sizes from 9 and 16kW suitable for houses of up to 300 m^2
• Suitable for heating and hot water provision serving ufloor heating and or radiators.
Radiators• Radiators don’t work the same on heat pumps as they
do on boilers.
• The temperature is lower.
• The heat output is lower so bigger radiators need to be installed
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New build
In new build developments 20% of energy use must come from a renewable source. Installing heat pumps in some of the houses helps to meet this target.
In 2016 Code 5 is introduced, from this point on gas boilers will no longer be an option in new builds.
Run Costs 120m^2 house
July 2011 Ofgem figures
Average electricity usage of 3,300 kWh @ 13p/kWhr or £429 per year for lighting, domestic appliances etc.
Average gas usage of 20,500 kWh @ 4.9p/kWhr or £1006 for heating and hot water
at 84% efficient this provides 17136 kWhrs of heat
Figures based on the SCOP / SPF calculation in the energy performance in buildings directive
Run Costs 120m^2 house
Insulation levelHeat pumps suit well insulated properties best.They do not suit very large or badly insulated properties.
Example:in a Code 3 house a heat pump will cost £30 / m^2In a 1980s house this will cost £50 / m^2In a 30s cavity walled house they will cost £70 / m^2And in a solid walled house they can cost £100 / m^2
EST* Advise to End Users
When you should consider a heat pump
We particularly recommend considering a heat pump if your home is one of the approximately five million properties that are off-gas, or for a new-build property.
Heat pumps are not recommended to replace gas boilers at this time.
*Energy saving trust
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Payback TimesAssuming a 120m² house:HP installation will cost £7000, gas boiler would be £3000. Oil boiler installation would be £6000.
The Heat Pump will cost £651 p/a the gas boiler £1005 p/aThe oil boiler will cost £1142. p/a
Payback:vs. gas saving is £350/ yr. Installed cost is £4000 more, payback is 11.5 yearsvs. oil saving is £491/ yr. Installed cost is £1000 more, payback is 2 years
Off grid and fuel security
5 M households in England, do not have access to the gas network, The number of claims made for stolen fuel spiralled by 264 per cent in January 2011.
RHPPFrom August 2011 a one off payment of £850 is available if you have a heat pump installed. This scheme ends in March 2012.VATIn retro-fit heat pumps have only 5% vatIn new build heat pumps have 0% vatRHIIn October 2012 there will be an run cost rebate from the government called the renewable heat incentive.
Are there any incentives available to help?