UK Warm Homes Plan: What it means for off-grid heating

The UK Government has published its long-awaited Warm Homes Plan, setting out how £15bn of public funding will be used between now and 2030, to upgrade up to five million homes and lift around one million households out of fuel poverty. Framed as both a cost of living and climate measure, the plan marks the most significant reset of domestic energy policy in more than a decade.

For those in the liquid fuels and off-grid heating sector, the plan is notable not only for what it includes – largescale support for electrification – but also for what it leaves unresolved about the future for oil-heated homes.

Why domestic heating matters

Homes are central to the UK’s climate and energy challenge as the second‑largest source of emissions after transport. They produced around 14% of the national total of CO2e in 2024 – largely because around 85% of homes still rely on fossil‑fuel boilers for heat.

This reliance has also left households particularly exposed to volatile global fuel markets, a vulnerability laid bare during the recent energy crisis as prices – and bills – surged. The problem is compounded by the UK’s ageing, poorly insulated housing stock, which wastes energy, driving up use, bills and emissions.

Because of this, buildings are expected to deliver around 20% of the emissions reductions needed to meet the UK’s 2030 climate target. Yet progress has been slow, with heat‑pump and insulation installation rates consistently falling short of earlier ambitions, despite successive government support schemes.

It is against this backdrop that the Warm Homes Plan seeks to reset policy and accelerate change, addressing domestic heating as both a climate priority and a cost‑of‑living issue.

A decisive shift towards electrification

At the heart of the plan is a clear policy pivot away from a traditional “fabric-first” retrofit model towards rapid electrification. Ministers argue that technologies such as heat pumps, solar PV and battery storage now offer the fastest and most cost-effective way to cut household energy bills, particularly when combined with smart tariffs.

Of the £15bn total:

• £5bn is earmarked to fully fund retrofit packages for low income households, covering measures such as insulation, solar panels, batteries and heat pumps.
• £2.7bn expands the existing heat pump grant scheme, offering £7,500 per installation, with air-to-air heat pumps included for the first time.
• £2bn will underpin a new government-backed low and zero interest loans programme to remove upfront cost barriers for home upgrades.
• A further £2.7bn is allocated to “innovative finance”, including green mortgages that reward low-carbon, energy-efficient homes.
• £1.1bn is committed to expanding heat networks, particularly in urban and multi-occupancy buildings.
• The remaining funding will flow to devolved administrations in Scotland, Wales and Northern Ireland, which will design their own delivery mechanisms.

Heat pumps: ambition tempered by realism

Despite the strong policy emphasis, the Government has quietly scaled back its expectations for heat pump deployment. The new target is 450,000 installations a year by 2030 – around 250,000 retrofits and 200,000 new builds.

This is lower than previous ambitions and below the trajectory recommended by the Climate Change Committee. It reflects slow market growth, high installation costs and consumer hesitation – challenges that are particularly acute in older, rural and off-grid properties.

Notably, the plan does not set a firm end date for the sale of fossil fuel boilers, nor does it propose an outright ban on oil heating systems. Hydrogen is mentioned only cautiously, “not yet a proven technology” for domestic heating.

What does this mean for oil-heated homes?

There are around 1.5 million UK homes currently heated by oil, many in rural and off-grid locations. For these households, the plan presents both uncertainty and risk.

On the one hand, generous grant funding and new loan products may accelerate the switch to electric heating where properties are suitable. On the other, many off-grid homes are hard to insulate, expensive to retrofit and poorly suited to standard low temperature heat pumps.

The plan offers little clarity on transitional technologies, hybrid systems or the future role of low-carbon liquid fuels. While heat networks and electrification dominate, there is no dedicated pathway for decarbonising existing oil-heated homes that cannot easily make the switch.

Implications for the sector

For the liquid fuels industry, the plan underlines the need to continue active engagement with the policy debate. Electrification remains firmly the Government’s preferred route, but delivery risks remain – from installer capacity and grid constraints to consumer acceptance and real-world performance.

In this context, the absence of a clear strategy for off-grid homes only emphasises the need for discussions around alternative decarbonisation options, including renewable liquid fuels, hybrid heating systems and staged transition pathways that protect households from excessive costs.

The Warm Homes Plan sends a strong signal of intent – but leaves important questions unanswered for a significant part of the UK heating market.

Margaret Major

_{Image from stock}