Air Source Heat Pumps (Air To Water Heat Pumps) Explained
Air conditioning technology has incorporated heat pump technology for over 30 years. Air to water heat pumps are a descendant of this, transferring heat into water instead of air. Major manufacturers like LG, Daikin, Fujitsu, and Mitsubishi have brought systems to the market, with many showcased at renewable energy shows like EcoBuild. After over a decade of installations in homes, swimming pools, and commercial properties, air to water heat pumps have become a proven technology.
How it works:
- Easy to install and low maintenance.
- Outdoor unit collects heat from ambient air using a heat exchanger.
- Uses refrigerants like R407C, R32, R410a, and R417a.
- Compresses the refrigerant to deliver heat efficiently.
- DC inverter compressors offer around 4.0 COP (Coefficient of Performance).
Key Advantages:
- No need for ground source piping.
- Space-saving installation.
- Cost-effective compared to ground source systems.
- Functions even when temperatures drop below -20°C.
Where to Use Air to Water Heat Pumps
The main uses include:
✅ Home heating
✅ Swimming pool heating
✅ Properties with no mains gas
They operate with minimal electrical consumption and are ideal where space or land is limited. They remain efficient even in freezing conditions.
✅ Home heating
✅ Swimming pool heating
✅ Properties with no mains gas
They operate with minimal electrical consumption and are ideal where space or land is limited. They remain efficient even in freezing conditions.
Air to Water Heat Pump Limitations
- Reduced efficiency in extreme cold.
- Requires defrost cycles to remove ice build-up.
- Outdoor unit must be elevated and have good drainage.
- Requires defrost cycles to remove ice build-up.
- Outdoor unit must be elevated and have good drainage.
Heat Pump Running Cost Calculator (Using COP)
Air to Water Heat Pump Features
- Optimal annual heating factor (inverter control)
- Compact outdoor unit dimensions
- Speed-controlled system pump
- Optimised operating costs
- Optional integrated coil water heater
- Timer scheduling for hot water and temperature settings
- Dual heating system control capability
- Integrated active cooling function
- External connection to solar/PV panels (some models)
Daikin Altherma: The Best Unit on the Market
Daikin's Altherma range leads the air to water market, known for reliability, quiet operation, and wide product options. Manufactured in Europe for rapid availability.
Explore the range:
Air to Water Heat Pump Boilers
Swimming Pool Air Source Heat Pumps
Solar & Heat Pump Compatible Hot Water Cylinders
Explore the range:
Air to Water Heat Pump Boilers
Swimming Pool Air Source Heat Pumps
Solar & Heat Pump Compatible Hot Water Cylinders
Frequently Asked Questions (FAQ)
- How noisy are they? Most units are whisper-quiet (40-50 dB).
- Will they work in freezing temperatures? Yes, most models operate down to -20°C.
- Is maintenance difficult? Very low maintenance requirements.
- How long do they last? 15-20 years with regular service.
- Are there government incentives? Yes, such as the UK Boiler Upgrade Scheme.
Contact Us
Orion Air Conditioning and Refrigeration Limited
10 Grisedale Court, Woburn Road Industrial Estate,
Kempston, Bedfordshire, MK42 7EE, United Kingdom.
Sales and Service: +44 (0)1234 841221
Fax: +44 (0)1234 852662
Email: info@orionair.co.uk
10 Grisedale Court, Woburn Road Industrial Estate,
Kempston, Bedfordshire, MK42 7EE, United Kingdom.
Sales and Service: +44 (0)1234 841221
Fax: +44 (0)1234 852662
Email: info@orionair.co.uk