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Air-to-air heat pumps

Air-to-air heat pump advice, costs and installation guidance

Explore practical guidance covering air-to-air heat pump costs, property suitability, indoor units, installation requirements, heating performance, cooling and available financial support.

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Understand your options

Decide whether an air-to-air heat pump suits your property

An air-to-air heat pump takes heat from the outside air and delivers warm air directly into rooms through one or more indoor units. Many systems can also provide cooling. They do not normally supply domestic hot water, so a separate hot-water system may be needed.

Use these guides to understand the assessment process, compare installation quotations and consider indoor-unit placement, airflow and room coverage. Costs, funding requirements and system suitability should always be checked against your individual property.

Costs and funding

Understand equipment and installation costs, possible additional work and the funding rules that apply to air-to-air systems.

Property suitability

Learn how heat loss, insulation, property layout, outdoor space, electrical capacity and room usage can affect the proposed system.

Installation and performance

Explore indoor-unit placement, airflow, controls, outdoor-unit positioning, noise, cooling, maintenance and expected running costs.

Latest air-to-air heat pump guides Practical articles covering installation, room coverage, costs, heating and cooling performance, and available support.

Air-to-air heat pumps

Explore air-to-air heat pumps by subject

How the system works

Learn how outdoor units collect heat and distribute warm or cool air through indoor units.

Property suitability

Consider your property layout, room coverage, insulation levels and available installation space.

Indoor-unit placement

Understand how the position of wall, floor or ceiling units can affect comfort and airflow.

Heating and cooling

Compare year-round heating performance, summer cooling and individual room controls.

Installation requirements

Review outdoor-unit positioning, electrical work, pipe routes, drainage and access requirements.

Costs and quotations

Compare equipment, installation scope, running-cost assumptions, warranties and exclusions.

Before choosing a system

Check whether air-to-air heating suits your property

Air-to-air heat pumps can provide efficient space heating and cooling, but they do not normally produce domestic hot water. A property-specific assessment is needed to confirm room coverage, unit placement and overall suitability.

  • Confirm which rooms will be heated and whether more than one indoor unit is required.
  • Check how domestic hot water will be provided separately from the air-to-air system.
  • Review suitable positions for the outdoor unit and each indoor unit.
  • Ask about airflow, operating noise, controls, maintenance and expected seasonal performance.
  • Confirm current Boiler Upgrade Scheme eligibility before relying on grant funding.
Independent information service.

This website provides general heating information and enquiry support. It is not a government department or official Boiler Upgrade Scheme administrator.

Discuss your property

Ask about an air-to-air heat pump

Provide basic details about your property, current heating system and the rooms you want to heat. An installer or adviser can then contact you to discuss suitability and potential next steps.

Start your enquiry