Air to Air Heat Pumps

How Air-to-Air Heat Pumps are installed

Outdoor units

Mounted externally, usually on a wall or the ground. It draws in outside air and extracts heat.
Indoor units

Wall-mounted or ceiling-mounted fan units distribute warm or cool air throughout the home.
Pipework

Refrigerant pipes connect the outdoor and indoor units, transferring heat.
Electrical connection

Requires a dedicated power supply and may need a fuse upgrade.
No radiators or underfloor heating

Unlike air-to-water systems, this setup doesn’t use radiators or pipes, just air circulation.

Energy Efficient

Can deliver up to 3–4 times more heat energy than the electricity it consumes.

Heating & Cooling

Provides warmth in winter and air conditioning in summer.

Lower Carbon Emissions

Uses renewable heat from the air, reducing reliance on fossil fuels.

Quick Installation

Typically faster and less invasive than wet heating systems.

Ideal for Retrofits

Great for flats, bungalows, or homes without gas connections.

Government Incentives

May qualify for schemes like the Boiler Upgrade Scheme (BUS) in England and Wales.

1. Site survey

A qualified installer assesses your home’s layout, insulation, and airflow needs.
2. System design

Determines the number and placement of indoor units for optimal coverage.
3. Air-to-air heat pump installation:
- Outdoor unit is mounted and connected to indoor units.
- Refrigerant lines and electrical wiring are installed.
- Units are tested for efficiency and safety.
4. Commissioning

System is calibrated and handed over with user instructions.
5. Maintenance

Filters should be cleaned regularly, and annual servicing is recommended.