Air to Water Heat Pumps
The Technology
The outside air contains energy, even at low temperatures, which can be harnessed to create free sustainable energy to heat the home.
Designed specifically to operate in the UK climate on new or existing situations, air source heat pumps utilise the free latent energy within the air, to create heat for underfloor heating or low temperature radiators.
This clean and sustainable heating solution, provides an ideal solution for properties without a gas supply, or looking to reduce their CO2 emissions.
The Ideal Airtherm has been designed to provide a simple and dependable solution; Delivering around 100% of the annual heating and domestic hot water for a wide variety of properties.
Find out...
How does an air source heat pump system work?
The air source heat pump works in the same way that a common fridge does, only in reverse.
The process is as follows:
Step 1 The Evaporator
The evaporator collects heat from the outside air, which has been pre-heated by the sun, the air being drawn into the unit by the fan. Liquid refrigerant (R134a) passing through the evaporator is at a considerably lower temperature than the outside air, causing the air to give up its heat to the refrigerant which is vaporised.
Step 2 The Compressor
The preheated vapour passes to the compressor, where it is compressed and upgraded to a much higher temperature and pressure.
Step 3 The Condenser
The hot vapour created by the compressor now enters the condenser where it is surrounded by water from the heating system, causing the heat to be given up to the cooler water. The cooled refrigerant now returns to its former liquid state, although it remains under high pressure from the compressor.
Step 4 The Expansion Device
The refrigerant is further cooled and pressure reduced by passing the liquid through the expansion device, from where it returns to the evaporator to repeat the cycle.
Ideal Airtherm
Full home heating solutions
Ideal Airtherm heat pumps provide an excellent efficiency performance of up to 400% (dependent on duty) compared to a SEDBUK A gas boiler, which will deliver around 90% and is particularly suitable for well-insulated properties, and those without a mains gas supply.
Ideals Airtherm design provides hot water supply up to 65°C ensuring there is no need for electrical heating backup and delivering complete homeowner comfort and peace of mind.
Designed for external use, Ideals Airtherm range offers an unobtrusive, simple and cost effective renewable energy solution for new build and retrofit installations alike.
How efficient are air source heat pumps?
Airtherm dual temperature heat pumps have been purposely designed to provide maximum energy efficiency at all times in UK households.
Take a look at the facts
- Domestic hot water (DHW) can be delivered at 65°C without the need for additional immersion or boiler back up.
- Heating DHW at this temperature, Airtherm is around 225% efficient (Electric immersion heaters are around 100% and gas boilers 85%).
- Typical comfort space heating is delivered between 35°C and 55°C and is designed to work efficiently with radiators or underfloor heating systems at around 400% efficiency.
- Airtherm heat pumps can operate efficiently to extremes of temperature as low as -15°C.
Airtherm heat pumps - applications
Key Airtherm components
- Available in three outputs of 4.5, 9 and 12 kWs
- Duel temperature operation for maximum efficiency
- Reverse cycle defrost: max 4 mins per hour. No defrost above 4°C
- No flues, gas supply or ventilation required
- Low starting currents
- Very low sound levels
- Maintenance free
- Input & Output
- Technical Data
| unit | Airtherm 4.5 | Airtherm 9 | Airtherm 12 | |
|---|---|---|---|---|
| @ Air On 0°C, 90%RH* | ||||
| Output To Water (@ 55°C)# | kW | 2.97 | 5.63 | 7.86 |
| Electrical Input | kW | 1.54 | 2.93 | 3.98 |
| Output To Water (@ 35°C)# | kW | 3.39 | 6.56 | 9.11 |
| Electrical Input | kW | 1.11 | 2.17 | 2.93 |
| @ Air On 7°C, 87%RH* | ||||
| Output To Water (@ 35°C)# | kW | 4.4 | 8.4 | 11.7 |
| Electrical Input | kW | 1.18 | 2.27 | 3.13 |
| @ Air On 20°C, 60%RH* | ||||
| Output To Water (@ 55°C)# | kW | 6.1 | 11.44 | 15.92 |
| Electrical Input | kW | 1.78 | 3.35 | 4.54 |
| Output To Water (@ 35°C)# | kW | 6.3 | 11.81 | 16.5 |
| Electrical Input | kW | 1.37 | 2.58 | 3.51 |
| unit | Airtherm 4.5 | Airtherm 9 | Airtherm 12 | |
|---|---|---|---|---|
| Electrical data | ||||
| Electrical Supply Spec' 1 Phase | V/ph/Hz | 230V / ~1N / 50Hz | 230V / ~1N / 50Hz | 230V / ~1N / 50Hz |
| Minimum Supply Capacity | amps | 13 | 25 | 32 |
| Maximum Supply Fuse 1 Phase N/Type CMCB | amps | 15 | 32 | 40 |
| Soft Start Amps 1 ph N | amps | 19 | 35 | 31 |
| Air data | ||||
| Air Flow (Anem' @ air on grille. Wet evap') | m3/hr | 2700 | 3000 | 4330 |
| Fan External Resistance STD | mm WG | 0 | 0 | 0 |
| Fan External Resistance “F" | mm WG | 6 | 6 | 6 |
| Water data | ||||
| Water Flow ±20% | l/min | 7.5 | 15 | 20 |
| Pressure Drop (Water) | m hd | 1.1 | 0.7 | 0.4 |
| Water Connections | inches | 3/4" BSPM | 3/4" BSPM | 1" BSPM |
| Condensate Water Connections | inches | 3/4" Domestic Waste | 3/4" Domestic Waste | 3/4" Domestic Waste |
| Typical Buffer tank sizes | litres | 50 | 100 | 150 |
| General data | ||||
| Sound Pressure Level @ 1m | dB (A) | 57 | 58 | 60 |
| Sound Power (ENV12102) | dB (A) | 68 | 69 | 71 |
| Weight (unpacked) | kg | 150 | 164 | 264 |