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A lone windmill standing on a field with mighty mountains in the background. A person is standing looking at it in the forefround.

The single greatest household emitter

Residential heating is the forgotten CO₂ emitter. In reality, it’s the single greatest cause of household CO₂ emissions, making our inefficient, fossil-fuel guzzling gas and oil boilers Europe's third largest CO₂ culprit. This needs to change. Now.

CO₂ emissions from residential heating is:


all of Europe's cement production
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all of Europe's iron and steel production
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all of Europe’s cars
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Tackling the polycrisis with clean energy-tech

The climate crisis. An energy crisis. A cost-of-living crisis. Europe is facing challenges of unprecedented proportions. And it's a situation made increasingly complex by geopolitical tensions with key energy suppliers, and insufficient efforts to reduce CO2 emissions.

Electrification of residential heating by heat pumps is the most efficient, affordable decarbonisation technology deployable at scale. This means clean energy-tech will play a pivotal part in solving the polycrisis.

Find out how an air source heat pump works

Everything around us contains heat in the form of thermal energy – it flows from one place to another in a never-ending dance of balance. Heat pumps utilise this natural flow of warmth, alongside some clever technology, to heat your home. Watch our explainer to see how the magic of turning free air into heat energy for our homes actually happens.

Video thumbnail - Aira Explains: How Does a Heat Pump Work?
Play button - Aira Explains: How Does a Heat Pump Work?
Minimalist illustration of a heat pump

Scandinavian home energy innovation

Heat pumps have long been recognised as a highly efficient alternative to oil and gas boilers. They are readily available and widely adopted across Scandinavia, but still uncommon in the rest of Europe. In countries such as the UK, Ireland, Belgium and the Netherlands, between 85-95% of residential heating is still fuelled by gas, oil, coal and other solid fossil fuels. The good news is over 100 million homes across Europe are already suited to switching to heat pumps.

To date, widespread adoption of heat pumps has been hindered by high upfront costs and total cost of ownership, supply chain inefficiency, lack of installation capacity, low awareness and a complex customer experience.

Aira changes all that.

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Energy consumption comparison

The efficient way to heat your home

On average, a gas boiler uses 4 times more energy than a gas boiler, compared to a petrol or diesel vehicle using 2.5 times more energy than an electric vehicle.

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