Cooling & Heating in One — Why Air-to-Air Heat Pumps Are Gaining Ground in UK Homes

Posted on October 9th, 2025

Someone using a remote to switch on their air to air heat pump

As the UK faces rising temperatures and tighter energy efficiency targets, air-to-air heat pumps are emerging as a smart, dual-purpose solution for domestic and council-owned properties. These systems offer both heating and cooling from a single unit — making them ideal for retrofit programmes that aim to future-proof homes against climate extremes.

Recent planning reforms introduced in May 2025 have made air-to-air systems easier to install, bringing them under the same permitted development rights as traditional air source heat pumps. For local authorities, this opens up new opportunities to deliver comfort, compliance, and carbon savings in one package.

What Are Air-to-Air Heat Pumps?

Unlike conventional boilers or radiators, air-to-air heat pumps work by transferring heat between indoor and outdoor air. In winter, they extract warmth from outside air and circulate it indoors. In summer, the process reverses — cooling the property efficiently without the need for separate air conditioning systems.

These systems are:

  • Highly efficient: With seasonal performance factors (SPFs) often exceeding 3.5.
  • Quick to install: Typically requiring less pipework and disruption than wet heating systems.
  • Ideal for off-gas homes: Especially in rural or hard-to-treat properties.

Why Councils Should Consider Them

  • Dual climate control: Supports both heating and cooling — essential for vulnerable tenants and climate adaptation.
  • Lower running costs: Reduced reliance on fossil fuels and improved energy ratings.
  • Minimal planning barriers: Now covered under permitted development, subject to noise and placement standards.
  • PAS 2035 compatibility: Easily integrated into whole-house retrofit designs.

Air-to-air systems are particularly useful in properties where traditional radiators or underfloor heating aren’t feasible — such as flats, timber-framed homes, or buildings with limited space.

Compliance & Accreditation

To ensure quality and eligibility for funding schemes, councils should work with:

  • MCS-certified installers: Guaranteeing product and installation standards.
  • TrustMark-registered firms: Ensuring consumer protection and retrofit accountability.
  • PAS 2035 coordinators: Overseeing design, ventilation, and resident safety.

For more technical background, see the Government’s literature review on air-to-air heat pumps.

Conclusion

Air-to-air heat pumps are no longer niche — they’re a practical, scalable solution for councils seeking to improve comfort, reduce emissions, and meet retrofit targets. With planning barriers removed and dual functionality built in, they offer a compelling option for modern housing strategies.

To learn more about our air-to-air heat pump services, or to discuss integration into your retrofit programme, contact our team today.

 

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