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The Savings Potential of Heat Pumps

Ground Source Heat Pump

Typical installed cost: £6,000-£12,000*
    End Terrace Semi-detached Detached
Gas £/yr £260 £300 £420
  kgCO2/yr 660 800 1,200
Electric £/yr £640 £730 £1,000
  kgCO2/yr 4,300 5,000 6,900
Oil £/yr £500 £570 £760
  kgCO2/yr 1,100 1,300 1,800
LPG £/yr £570 £660 £870
  kgCO2/yr 970 1,200 1,700
Solid £/yr £210 £250 £350
  kgCO2/yr 4,200 4,800 6,400

 

Air Source Heat Pump

Typical installed cost: £7,000-£10,000*
    End Terrace Semi-detached Detached
Gas £/yr £190 £220 £310 
  kgCO2/yr 510 600  830
Electric £/yr £550 £630  £870
  kgCO2/yr 3,700 4,300  5,900
Oil £/yr £360 £420  £580
  kgCO2/yr 820 950  1,300
LPG £/yr £410  £480  £660
  kgCO2/yr 730  860  1,200
Solid £/yr £170  £200  £280
  kgCO2/yr 3,200  3,700  5,100

 

* Costs do not include distribution system e.g. underfloor heating. However, savings for a GSHP assume the heat pump provides 100% of space heating and 50% of domestic hot water, with the remaining 50% heated by electricity. Savings for ASHP assume it provides 100% space heating only.

Source: EST