UK Heat Pump Policy, Targets and the Rules Coming

UK heat pump policy is a patchwork of statutory rules, funded schemes and stated ambitions, and the distinction between them matters to any household trying to read the direction of travel. The headline commitment is a target of 600,000 heat pump installations per year by 2028¹. A separate ambition, set out in the Carbon Budget and Growth Delivery Plan factsheet, is for 450,000 annual installations per year by 2030, with 70% of those units targeted to be manufactured in the UK by 2035². Against those numbers, Government-supported installations reached 46,423 in the year ending June 2025, a 30% increase on the 35,702 recorded in the year ending June 2024³.

The gap between ambition and delivery is the central fact of UK heat pump policy. Heat pumps are currently installed in 1% of UK homes, and the number of heat pump units installed in the UK is just 7% of that in France¹. The Climate Change Committee has assessed that the UK does not have anywhere near enough capacity in its supply chains to install the number of heat pumps or heat networks that the UK will need in the years to come⁵. Policy is therefore aimed as much at building a market and a supply chain as at persuading individual households.

For a household, the practical questions are narrower: what is already law, what is still a proposal, what applies in England, Scotland, Wales and Northern Ireland, and what any of it does for energy independence. This page sets out the framework as it stands, separating the binding from the aspirational.

Targets, delivery and the gap between them

The short answer is that the UK has a set of installation targets and market mechanisms, but very little of the framework is a direct legal requirement on an individual household. The UK Government set out plans to scale up heat pump rollout in its 2021 Heat and Buildings Strategy¹. That strategy set the direction: an intention to phase out installation of new and replacement natural gas boilers from 2035, running in line with replacement cycle timelines so that almost all heating systems in 2050 are low-carbon⁷. No legally binding regulatory decision has been made on that phase-out.

What is binding sits mostly on manufacturers and, in Scotland, on new buildings. The Clean Heat Market Mechanism places an obligation on appliance manufacturers: from 1 April 2026, manufacturers are required to meet a target of 6% of sales with heat pumps or acquire credits². The New Build Heat Standard in Scotland prohibits polluting heating systems, like gas and oil boilers, in new buildings⁸. Both are rules on builders and makers rather than on a household replacing a boiler.

The government has also pursued supply-side policies, including obligations on boiler and heat pump manufacturers and potentially energy companies to deliver a certain number of low carbon heat installations each year⁵. A 2021 consultation on a market-based mechanism for low-carbon heat described an obligation that would require the obligated parties to achieve the installation of a certain number of heat pumps up to 45kWth to existing UK properties⁹. That is the lineage of the mechanism now in force.

For a household, the practical reading is this: no rule currently compels the replacement of a working gas boiler with a heat pump. The pressure is indirect, arriving through what manufacturers must sell, what builders must install in new homes, and what grant funding makes available. The Heat Pump Grants and Funding Across the UK page covers the funding side in detail.

The figures: 600,000 a year against 46,423 delivered

The figures divide into targets, delivery and the shape of what has been installed. The targets are the 600,000 installations per year by 2028¹ and the 450,000 annual installations per year by 2030 ambition, with 70% of units targeted to be manufactured in the UK by 2035². The Warm Homes Plan restates the manufacturing aim as at least 70% of heat pumps installed in the UK being made in the UK¹⁰.

Delivery is measured through the Heat Pump Deployment statistics, which monitor the number of hydronic heat pumps with a capacity up to 45kW installed in the United Kingdom¹¹. The most recent annual figure is 46,423 Government-supported installations in the year ending June 2025, against 35,702 in the year ending June 2024, a 30% increase³. The preceding year had grown faster: a 52% increase in the year ending December 2024, with 42,645 installations compared to 28,084 in 2023¹².

The composition of the market is heavily skewed to air source. In the year ending December 2024, 98% of Government-supported installations were air source heat pumps, up from 87% in the year ending December 2019¹². The same 98% share held in the year ending June 2025³. Funding routes matter to the totals: in the year ending December 2024, 53% of installations were funded through the Boiler Upgrade Scheme and 40% through the Energy Company Obligation¹². By the year ending June 2025 the Energy Company Obligation share was 31%³.

Quarterly figures show how uneven the path is. There were 11,001 Government-supported installations in 2025 Q2, a 10% decrease on the previous quarter, of which 10,852 were air source³. In 2025 Q1 there were 12,175 installations³. In England alone, 2025 Q2 saw 8,897 installations³. The quarterly series is published as an official collection¹³.

What drives the numbers

Three forces drive the numbers: grant funding, manufacturer obligations and supply chain capacity. Grant funding has a direct and measurable effect on demand. Applications surged after an increase in the government grant¹⁴. The Boiler Upgrade Scheme and the Energy Company Obligation together accounted for the overwhelming majority of supported installations in the year ending December 2024¹².

The Clean Heat Market Mechanism works from the supply side. Its stated purpose is to incentivise the UK heating industry to invest in making heat pumps an increasingly attractive and affordable choice for families and businesses¹⁴. By requiring manufacturers to meet 6% of sales with heat pumps or acquire credits from 1 April 2026, it shifts the decision from the household to the boardroom².

Supply chain capacity is the constraint that policy is trying to relieve. Stakeholders indicate the supply chain is currently constrained by a lack of consumer demand and government policy uncertainty¹. The Climate Change Committee's assessment is blunter: the UK does not have anywhere near enough capacity in its supply chains to install the number of heat pumps or heat networks that the UK will need in the years to come⁵. The Heat Pump Ready Programme was set up to establish an evidence base to enable effective design and development of future heat pump policy and regulation, and to support high-density deployment of heat pumps in the UK through the development and trial of innovative approaches¹⁵.

There is also an industrial strategy dimension. The Heat and Buildings Strategy estimated that growing heat pump manufacturing and installation could increase the rate of installation, grow opportunities for exports, and create more than 10,000 manufacturing-related UK jobs⁷. The Climate Change Committee provides independent assessment of the strategy as part of the approach to climate change¹⁷.

Scotland, England, Wales and Northern Ireland

Heat is a devolved matter, and the four nations have diverged. Scotland has the most developed framework. Its Heat in Buildings Strategy targets over 1 million homes in Scotland converting to zero emissions heating by 2030, and the equivalent of 50,000 non-domestic buildings⁶. Emissions from heat in buildings will have to fall by 68% by 2030 as compared to 2020⁶. On energy efficiency, the target is for a large majority of homes to reach at least the equivalent of an EPC Band C by 2030, with all homes meeting at least this standard by 2033⁶.

The New Build Heat Standard is the sharpest Scottish rule. It prohibits polluting heating systems, like gas and oil boilers, in new buildings⁸. An amendment now permits wood burning stoves, bioenergy and peat heating systems in new buildings⁸. The Scottish Government is also committed to prohibiting the use of polluting heating systems across all homes and business premises by the end of 2045¹⁸. A consultation proposed prohibiting polluting heating in all buildings after 2045¹⁹.

Scotland's strategy carries an employment estimate: research suggests the additional jobs supported in 2030 will exceed those displaced by an estimated 16,400 as a result of investment in zero emissions heat²⁰. The Climate Change Committee provides regular advice to Scotland, including an annual Scottish progress report on reducing emissions¹⁷.

England's distinctive policy lever is planning. Amendments to permitted development rights in England include the removal of the rule that a heat pump must be installed at least one metre from the property boundary²¹. Installation of an air source heat pump is permitted development, though rules still in place around listed buildings continue to apply²². The Heat Pump Planning Permission in England page covers the detail.

Wales and Northern Ireland have their own planning regimes. Official guidance notes that guidance on permitted development relates to the planning regime for England, and the policy in Wales may differ²³. The deployment statistics themselves have a coverage limit: they currently cover DESNZ Government-supported heat pump installations only, domestic and non-domestic schemes, excluding some devolved administration schemes in Scotland and Northern Ireland²⁴. That means the UK totals understate activity in those nations.

What is already law, and what is not

The rules fall into three groups: what manufacturers must do, what builders must do, and what a household may do without permission.

For manufacturers, the Clean Heat Market Mechanism requires a target of 6% of sales with heat pumps, or the acquisition of credits, from 1 April 2026². This is the mechanism that converts a government target into a commercial obligation.

For builders, the New Build Heat Standard in Scotland prohibits polluting heating systems in new buildings, with the amendment permitting wood burning stoves, bioenergy and peat systems⁸. In England, the Future Homes Standard has been consulted on. A detailed specification was consulted on from November 2023 to March 2024²⁵. One option would have required solar PV panels covering the equivalent of 40% of a new home's ground floor area, with solar PV panels not required for blocks of flats over 15 storeys²⁵. Rooftop solar for new builds has been promoted as saving people money²⁶.

For households, the key rule is that air source heat pump installation is permitted development in England, and the one metre boundary rule has been removed²¹. That change was announced in November 2024 and confirmed again in June 2025²². The practical effect is that a heat pump can be sited closer to a boundary than previously allowed, which matters on tight urban plots. The MCS 020 noise assessment remains part of the permitted development conditions.

The 2035 gas boiler phase-out is the rule most often described as settled when it is not. The Heat and Buildings Strategy states the government intends to phase out installation of new and replacement natural gas boilers from 2035, running in line with replacement cycle timelines so that almost all heating systems in 2050 are low-carbon⁷. No legally binding regulatory decision has been made. Households should treat 2035 as a stated intention rather than a date in law.

What it means for household energy independence

The energy independence case for heat pump policy rests on shifting demand from gas to electricity. The Heat and Buildings Strategy states that delivering on its goals will help to protect UK consumers from future price spikes and increase energy security by reducing energy needs and shifting demand from gas to electricity, which in future will be predominantly supplied from UK-based renewable generation¹⁷. That is the official framing: less imported gas, more domestically generated electricity.

The direction of travel is set in law and in standards rather than in any one product. The Climate Change Committee, an independent statutory body established under the Climate Change Act 2008, advises that all home heating should come from low-carbon sources by 2050¹⁸. In Scotland, the Heat in Buildings Strategy targets over 1 million homes converting to zero emissions heating by 2030, alongside the equivalent of 50,000 non-domestic buildings, and at least 50% of the building stock using zero emission heating systems by the same year¹⁷. The New Build Heat Standard has applied since 1 April 2024, so no new buildings constructed under a building warrant applied for from that date have heating systems such as gas and oil boilers¹⁹. In England, the Future Homes Standard sets new requirements for homes built in England from 2028, requiring all new build homes to be "zero-carbon ready" and fitted with solar panels covering at least 40% of the ground floor surface area where appropriate, with the legislation taking effect from 24 March 2027²⁰. For a household, the practical meaning is that a home's heating choice is increasingly bounded by regulation, and that the residual dependence is on the electricity grid and on whatever generates that electricity, not on a gas connection alone.

The mechanism is not automatic. Reducing the price of electricity relative to gas would make heat pumps more competitive¹. Until that relative price changes, the running cost case for a heat pump depends on the tariff and the efficiency of the installation rather than on policy alone. The Heat Pump Running Costs page sets out what that means in practice.

Heat pumps are described in official guidance as a key solution for decarbonising homes and as critical for meeting the UK's commitment to achieve net zero¹⁵. The carbon benefit is stated as potentially slashing a heating carbon footprint by up to 70%²⁸. That figure is a potential, not a guarantee, and depends on the electricity mix and the efficiency of the specific installation.

What dependence remains is worth stating plainly. A heat pump household still depends on the electricity grid and on an electricity supplier. It depends on a manufacturer for parts, warranty support and, in many cases, app-based controls. It depends on the skills of the installer for performance. Policy can shift the economics and the supply chain, but it does not make a household self-sufficient. The Heat Pumps and Household Energy Independence page examines where the remaining dependencies sit.

The Heat Pump Ready Programme, running across the UK, was designed to establish an evidence base for future policy and to trial high-density deployment approaches¹⁵. Its findings feed into the design of the rules that follow. For households, the direction is clear even where the dates are not: more heat pumps, more often specified by builders and manufacturers rather than chosen freely, and a continuing gap between the 600,000 heat pumps a year the Government says it wants by 2028 and what is installed now¹.