Are Heat Pumps Worth It?

Are heat pumps worth it in the UK? Honest pros and cons, real running costs, savings vs gas, and whether a heat pump suits your home.

The Short Answer: Yes, For Most Homes

With the £7,500 government grant, heat pumps make financial sense for most UK homeowners. But they're not right for everyone. Here's the honest breakdown.

When Heat Pumps ARE Worth It

  • You're replacing oil or LPG heating — savings of £500-1,000+/year
  • Your home is well-insulated — heat pumps work best in efficient homes
  • You have or plan to get solar panels — free electricity = free heating
  • You're planning to stay long-term — payback is 5-10 years
  • Your gas boiler is end-of-life — you need a new heating system anyway
  • You care about the gas boiler ban — new builds banned from 2035

When Heat Pumps Might NOT Be Worth It

  • Your gas boiler is new — if it's under 5 years old, wait
  • Your home is poorly insulated — insulate first, heat pump second
  • You're moving soon — you won't see the payback
  • You're on the gas grid with a cheap tariff — savings are smaller

Real Running Cost Comparison

Based on a typical 3-bed semi-detached home in 2026:

  • Gas boiler: £950/year
  • Air source heat pump: £650/year
  • Heat pump + solar panels: £250-350/year

The combination of a heat pump plus solar panels can cut your heating bill by 60-70%.

The Comfort Factor

Heat pumps provide a different kind of heat to gas boilers. They deliver a lower, more consistent temperature rather than short bursts of intense heat. Most people find this more comfortable once they're used to it, but it takes adjustment.

Key comfort points:

  • Rooms stay at a more even temperature all day
  • No cold spots or hot blasts
  • You may need larger radiators (your installer will advise)
  • Underfloor heating works perfectly with heat pumps

The £7,500 Grant Changes the Maths

Without the Boiler Upgrade Scheme grant, heat pumps were a tough sell financially. With £7,500 off the upfront cost, the payback period drops to 5-7 years for most homes. That makes the maths work for the majority of homeowners.

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Common Questions

For most homeowners, yes — especially with the £7,500 BUS grant. They save £200-400/year vs gas, more vs oil. Combined with solar panels, savings can reach 60-70%.
Yes. Modern air source heat pumps work efficiently down to -15°C. The UK rarely gets below -5°C, so they perform well year-round.
Yes, but differently. Heat pumps provide lower, more consistent warmth rather than short bursts. Most people find this more comfortable. You may need larger radiators.
Modern air source heat pumps are about as loud as a fridge (40-45 decibels). They're installed outside, so you barely hear them indoors.