The UK is at a pivotal point in our journey towards a low-carbon future. Home heating is under particularly intense scrutiny, as it currently accounts for around 18% of the nation’s total carbon dioxide emissions,

To help reduce these emissions and achieve ambitious net-zero targets by 2050, the government is urging homeowners to adopt renewable energy solutions in place of conventional gas and oil boilers — and air source heat pumps are leading this vital transition.

But what exactly makes this technology so crucial to the future of energy? Are heat pumps a form of renewable energy? And is a heat pump environmentally friendly compared to traditional gas heating? 

In this article, Adlår explores the role of heat pumps in the UK’s evolving energy landscape, their environmental benefits, and the policies that are making them an increasingly attractive option for homeowners.

Are Heat Pumps a Form of Renewable Energy?

What Qualifies as Renewable Energy?

To understand the potential of air source heat pumps, it is important to first define what we mean by renewable energy. 

Renewable energy comes from plentiful natural sources that replenish over time, including wind, solar, hydro, and geothermal power. These options do not deplete finite resources or release harmful emissions that cause long-term environmental harm.

Fossil fuels, by contrast, are finite and highly polluting. Their extraction and processing causes land degradation, water pollution, and harmful emissions of harmful air pollutants, while burning them contributes further to global warming through the release of carbon dioxide and other dangerous air pollutants like mercury, soot, and nitrogen oxides. 

As the world grapples with the negative effects of climate change, the shift towards truly renewable energy solutions is no longer optional — it is essential.

Are Heat Pumps Considered Renewable?

So, are heat pumps a form of renewable energy? For the moment, the answer is: partially, but increasingly so as the UK continues to decarbonise the power system. 

Different types of heat pumps extract thermal energy from the air, ground, or water to heat homes. Air source heat pumps, the focus of this blog, work by extracting the ambient warmth present in the air outside a home and transferring it indoors to provide heating and hot water. 

This ambient air is constantly replenished by solar energy, making the source of the heat renewable. However, operating a heat pump also requires electricity, which means they are currently classified as only partially renewable. 

The exact degree to which air source heat pumps are renewable depends on the carbon intensity of the electricity used. Even when connected to the standard electricity grid, heat pumps are far more carbon-efficient than gas or oil boilers.

If powered solely by renewable electricity, a heat pump can be considered a fully renewable technology. Therefore, as the UK’s electricity grid continues to become greener, so too do heat pumps, meaning they will play an increasingly important role in providing sustainable home heating going forward.

Why Heat Pumps Are Critical to the UK’s Energy Future

The UK’s Transition Away from Gas Boilers

In recent years, the UK government set out a timetable for phasing out gas boilers in a bid to cut residential carbon emissions. Plans were set to stop installing gas boilers in new-build homes by 2025, with a complete ban on the sale of new gas boilers from 2035. 

However, according to reports released in January 2025, the gas boiler ban has now been scrapped, with focus instead shifting to improving new home efficiency requirements. Despite this, the UK remains committed to achieving net zero by 2050, which will likely only be possible if more homeowners transition to low-carbon heating systems.

Given their high efficiency, low emissions, and adaptability to a wide range of homes, air source heat pumps are poised to become the standard solution for clean, reliable home heating across the country.

Heat Pumps and the UK’s Renewable Energy Grid

The growing dominance of renewable energy in the UK grid directly enhances the sustainability of air source heat pumps. In 2010, only 6.5% of the UK’s electricity came from renewables. By 2024, though, that figure had risen to 50.8%, with bioenergy, wind, and solar providing the majority. The government aims for a fully decarbonised electricity system by 2035.

This shift means that running a heat pump will become increasingly greener with every passing year, leading to even lower household carbon footprints and a cleaner national energy system overall.

Is a Heat Pump Environmentally Friendly?

Lower CO₂ Emissions Compared to Gas Heating

Is a heat pump environmentally friendly when compared to traditional gas or oil heating systems? The evidence is clear: yes, dramatically so. 

Traditional gas and oil boilers create heat through the burning of fossil fuels, which directly emit carbon dioxide and other pollutants. Air source heat pumps, by contrast, transfer heat instead of generating it through combustion, making them significantly more environmentally friendly.

The table below provides a clearer comparison of the differences in emissions between heating systems, using figures from The Renewable Energy Hub.

Energy Efficiency and Reduced Waste

Another key reason air source heat pumps are so environmentally friendly is their extraordinary efficiency. 

Heat pumps achieve a Coefficient of Performance (COP) of 3 – 4, meaning they generate 3 – 4 kWh of heat for every 1 kWh of electricity used. By comparison, even the most efficient gas boilers operate at around 94% efficiency, meaning at least 6% of energy is wasted.

By drawing thermal energy from the environment using electricity rather than generating it through combustion, heat pumps drastically reduce both energy consumption and waste, making them one of the most efficient heating systems available.

Longevity and Sustainability

Durability is another environmental advantage. While a typical gas boiler may last 10 to 15 years, most air source heat pumps have a lifespan of at least 20 years. This longer operational life means fewer replacements, less manufacturing waste, and a lower overall environmental impact. 

What’s more, many modern heat pumps are designed to be recyclable, making them a genuinely sustainable option for forward-thinking homeowners.

Government Initiatives Supporting Heat Pump Adoption

Financial Incentives for Homeowners

Recognising the importance of this technology, the UK government has introduced several financial support schemes to make air source heat pumps more accessible and affordable:

• The Boiler Upgrade Scheme (BUS) offers eligible homeowners a £7,500 grant towards the cost of installing a heat pump.
• 0% VAT on heat pump installations until 2027 significantly lowers upfront costs.
• Future green finance initiatives are expected to include low-interest loans or energy-efficient home upgrades to help spread installation costs further.

These schemes and Adlår’s fast payback mean there has never been a better time to invest in low-carbon heating.

Heat Pump Deployment Targets

To meet climate goals, the UK aims to install 600,000 heat pumps per year by 2028. In addition to the financial incentives, achieving this will involve new building regulations encouraging heat pumps in new homes, enhanced public awareness campaigns, and substantial investment in grid infrastructure to manage the increased electricity demand.

The Future of Heat Pumps in the UK

Heat pumps will play an essential role in the UK’s energy transition, particularly as the grid continues to decarbonise. Key trends shaping the future will include integrating heat pumps with rooftop solar panels to achieve zero-emission heating, continual improvements in heat pump efficiency that make them cheaper to run, and stronger government policies to accelerate adoption.

With the UK’s unwavering commitment to net zero and the growing green electricity supply, air source heat pumps will become even more sustainable, cost-effective, and essential to everyday life.

Embrace the Future of UK Energy with Air Source Heat Pumps

The UK’s shift towards low-carbon heating is already well underway. If you have ever wondered, “is a heat pump environmentally friendly?”, the answer is resoundingly positive.

Air source heat pumps offer a proven, efficient, and future-proof solution for homeowners who want to reduce their carbon footprint, lower their energy bills, and support a more sustainable energy system.

With up to £7,500 in government support available and rising electricity from renewable sources, there has never been a better time to invest in a heat pump.

Contact Adlår today for a free, no-obligation consultation and fixed-price quote. Our expert team is ready to help you embrace a greener future with the perfect air source heat pump for your home.