Heat Pump V’s Boiler – Cost Comparison

HEAT PUMP V'S BOILER?

Likely cost

It’s worth saying before we go any further that a heat pump V’s boiler cost comparison is very difficult to do as cost can vary massively, with the boiler but especially on the Heat Pump side. There are properties where installing a heat pump is not even possible but below we try to give you some indication of what you could expect. This comparison is based on a mid sized house with good insulation. The property currently having fitted a 20 year old open vented boiler with a copper cylinder. There being enough outside space to install the heat pump on the side of the property and enough space to install an Unvented cylinder near the heat pump.

modern gas boiler

BOILER

Vaillant 832 plus, flue, filter and controls £2050
Installation and power flushing £850
System conversion and likely general upgrading cost £450

Total £3350

vaillant air source heat pump

HEAT PUMP

Vaillant Arotherm plus 7.5kw £3600
Vaillant 250lt heat pump cylinder £1475
Installation controls and pipework costs £4650
Likely upgrade to heating system (larger radiators etc) £3800
£13475
Less government grant of up to £7500

Total £5975

Energy bills cost

Even though you will use far fewer KW to heat your house with a heat pump the energy bill would be broadly very similar due to gas being far cheaper than electricity. However if comparing a Heat pump to LPG, oil or standard electric heating the savings would be very substantial.

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