What are the most common heat pump complaints?

Common complaints include running costs higher than expected (often linked to the tariff or a high flow temperature setting), the adjustment to a different heating pattern, an inadequate installer handover, slower hot water recovery than a combi boiler, and, less often, noise from the outdoor unit.

Do heat pump owners save money compared to gas?

At current capped prices the saving against gas is modest. In our standard worked example (11,500 kWh of heat, COP 3.2) a heat pump costs about £946 a year at 26.32p/kWh, against about £1,018 for a 90% efficient gas boiler at 7.97p/kWh (unit rates only). Savings against heating oil are larger, and a heat pump or time-of-use tariff can cut costs further.

How long does it take to feel comfortable with a heat pump?

Expect a period of adjustment while you get used to radiators that are warm rather than hot, a system that runs for longer, and not adjusting the thermostat constantly. A clear handover from the installer shortens this.

Would heat pump owners buy one again?

Satisfaction research suggests most owners are content with their decision, with dissatisfaction most often linked to installation quality rather than the technology. Choosing a careful, experienced installer is the best protection.

Heat Pump Customer Experience: Satisfaction, Complaints, Costs

What is it actually like to live with a heat pump? This guide summarises what published research says about owner satisfaction, the complaints that come up most often and their usual causes, realistic running costs at current prices, and the practical steps that make a good experience more likely.

By Home Heat Pump GuidePublished: 19 March 2026Last reviewed October 2026

person researching heat pump data on laptop at UK home office desk with notes — Research the experience before you buy: most problems are avoidable with good design and a proper handover.

Note: this page is editorial guidance. It does not report our own survey; where it refers to research, that research was published by others.

For what the first heating season usually feels like, see your first winter with a heat pump. For the broader market context, see our 2026 state of the market report.

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What Satisfaction Research Shows

Published research, including surveys reported by Nesta, has found that most heat pump owners surveyed were satisfied with their system. The same body of research points to installation quality, including sizing, commissioning and the handover, as a major influence on whether owners are happy.

What Owners Tend to Value

Consistent temperature: steady heat rather than the swings of a boiler cycling on and off
Lower bills when replacing oil, LPG or direct electric heating: the running cost case is strongest here
Lower carbon emissions: especially as the electricity grid decarbonises
Low day-to-day involvement: no fuel deliveries or tank to manage for oil and LPG switchers

Common Complaints and Their Causes

Complaint	Usual Root Cause	Avoidable?
Running costs higher than expected	Wrong tariff, high flow temperature, poor setup	Usually
Confusion during the first weeks	Inadequate installer handover	Yes
Hot water concerns	Slower reheat than a combi boiler	Partially
Some rooms not warm enough	Undersized radiators or poor design	Usually
Noise	Poor positioning or a fault	Usually

Most of these are avoidable through good design and a thorough handover. See common installation mistakes.

Running Costs at Current Prices

Previous Fuel	Previous Annual Cost	Heat Pump Annual Cost	Approximate Saving
Gas (heat pump on standard capped rate)	About £1,018	About £946	About £72 (more if the gas supply is removed)
Gas (heat pump on a heat pump tariff)	About £1,018	Lower; depends on the tariff	Larger; check the supplier's current rates
Oil	About £1,457	About £946	About £511
LPG	Use your own delivery price	About £946	Depends on your LPG price

Worked example: 11,500 kWh of heat a year, heat pump seasonal COP 3.2, 90% efficient boilers, unit rates only. October 2026 prices: electricity 26.32p/kWh and gas 7.97p/kWh (Ofgem cap); heating oil about 11.4p/kWh (about 117p per litre including VAT, BoilerJuice average, indicative). Removing the gas supply also saves the gas standing charge (29.68p a day). Last reviewed October 2026.

The tariff choice matters most for gas switchers: on the standard capped rate the saving is modest, so a heat pump or time-of-use tariff can make a meaningful difference. Our running costs guide covers tariff choice. Adding solar panels can reduce costs further.

Why Installer Quality Matters Most

Installation quality is the factor most often linked to whether owners are happy. The areas that most often go wrong are the system explanation at handover and aftercare, which are exactly the areas that prevent the most common complaints. For guidance on choosing installers, see our installation guide.

The Adjustment Period

Expect a period of adjustment. Key changes include accepting warm (not hot) radiators, resisting the urge to constantly adjust the thermostat, understanding that the system runs for long periods rather than cycling, planning around a hot water cylinder that reheats over a longer period, and trusting weather compensation to manage flow temperatures.

Noise

Noise is a common worry before installation. A correctly positioned modern unit is usually quiet, and installations under permitted development must meet the MCS noise standard. For detail, see our heat pump noise guide.

Practical Advice Before You Buy

Improve insulation first — it makes everything work better and cost less
Review your tariff — check whether a heat pump or time-of-use tariff suits you
Get more than one quote — and compare the design, not just the price
Ask about flow temperature — lower is more efficient
Do not constantly adjust the thermostat — set it and leave it
Tell your neighbours — managing expectations prevents complaints
Consider solar panels at the same time — installing together can save on scaffolding and electrical work

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Frequently Asked Questions

How satisfied are UK heat pump owners?

Published research, including surveys reported by Nesta, found most owners surveyed were satisfied. Dissatisfaction is most often linked to installation quality.

What are the most common complaints?

Running costs higher than expected (often tariff or settings), the adjustment period, inadequate handover, and hot water recovery time.

Do owners save money compared to gas?

Modestly on the standard capped rate: about £946 a year for a heat pump against about £1,018 for gas in our worked example. Savings against oil are larger, and a heat pump tariff can cut costs further.

How long is the adjustment period?

Usually a few weeks, while you get used to the different heating pattern. A clear installer handover helps.

Would owners buy one again?

Research suggests most owners are content with their decision; dissatisfaction is most often linked to installation quality.

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Customer Experience in the Heat Pump Transition

Positive customer experience is the most powerful driver of heat pump adoption. Satisfied owners recommend the technology to friends, family, and neighbours — creating organic demand that no amount of advertising can match. The combination of generally positive owner experience, generous grant support, and improving economics through solar integration and better tariffs positions heat pumps for continued growth. Ensuring installation quality through proper MCS standards remains the key to maintaining this positive trajectory.