Propane monoblocs from 4 kW to 16 kW for homes and 22 kW to 40 kW for commercial buildings. The sealed refrigerant circuit stays inside the outdoor unit, so the installer makes water-side connections only.

Why R290 monobloc

Rated heating output is maintained at −7 °C outside, and the unit keeps supplying 80 °C water down to −10 °C.
Every domestic model is MCS certified and listed in the Product Characteristics Database at 35 °C and 55 °C. Installations qualify for the Boiler Upgrade Scheme through an MCS‑certified installer.
Native RS485 Modbus with a documented register map, so Passiv UK and Adia Thermal controls connect without an adapter.
Built‑in strainer, 3 kW back‑up heater on single-phase models (9 kW on three-phase), weather compensation as standard and a dual-zone option.
Features

AUX AI Thermal Monobloc system is characterized by its stylish matte black casing made from weather resistant materials, ensuring its aesthetic appeal remains for years to come.

The R290 AI Thermal boasts energy efficiency of A+++/A+++. Its SCOP is 5.4*

The AUX R290 Monobloc System provides hot water reaching a temperature up to 80 °C.

27 language menu, stylish casing, heat pump can be set up via USB and the controller for easy commissioning.

AUX heat pumps feature inverter compressors for quiet outdoor operation. With triple insulation and AUX patented fan design noise levels are reduced to 35 dB(A) at 3 m. The silent mode function offers two levels for added comfort.

Flexible compatibility with various heating systems including: underfloor, radiators or fan coil units. Option also to power from your solar system.

Catering to individual preferences, this feature offers distinct climate control for different areas, ensuring personalised comfort in homes or workplaces.

Heat pumps marked with SG Ready label are equipped with control system that allows to connect a single heat pump into a smart grid.
Domestic range
Seven single-phase outputs from 4 kW to 16 kW and five three-phase outputs from 8 kW to 16 kW. All models are A+++ at 35 °C and 55 °C flow, MCS certified and PCDB registered.
| SKU | Model | Output | Unit size W × D × H | R290 charge | PCDB index 35 °C / 55 °C |
|---|---|---|---|---|---|
| A1010 | ACHP-H04/4R2HA-M | 4 kW | 1130 × 420 × 710 mm | 0.55 kg | 110434 / 110432 |
| A1011 | ACHP-H06/4R2HA-M | 6 kW | 1130 × 420 × 710 mm | 0.55 kg | 110442 / 110440 |
| A1012 | ACHP-H08/4R2HA-M | 8 kW | 1280 × 420 × 1040 mm | 0.85 kg | 110450 / 110448 |
| A1013 | ACHP-H10/4R2HA-M | 10 kW | 1280 × 420 × 1040 mm | 0.85 kg | 110458 / 110456 |
| A1014 | ACHP-H12/4R2HA-M | 12 kW | 1280 × 420 × 1040 mm | 1.35 kg | 110466 / 110464 |
| A1015 | ACHP-H14/4R2HA-M | 14 kW | 1280 × 420 × 1040 mm | 1.35 kg | 110474 / 110472 |
| A1016 | ACHP-H16/4R2HA-M | 16 kW | 1280 × 420 × 1040 mm | 1.35 kg | 110482 / 110480 |
| SKU | Model | Output | Unit size W × D × H | R290 charge |
|---|---|---|---|---|
| A1022 | ACHP-H08/5R2HA-M | 8 kW | 1280 × 420 × 1040 mm | 0.85 kg |
| A1023 | ACHP-H10/5R2HA-M | 10 kW | 1280 × 420 × 1040 mm | 0.85 kg |
| A1024 | ACHP-H12/5R2HA-M | 12 kW | 1280 × 420 × 1040 mm | 1.35 kg |
| A1025 | ACHP-H14/5R2HA-M | 14 kW | 1280 × 420 × 1040 mm | 1.35 kg |
| A1026 | ACHP-H16/5R2HA-M | 16 kW | 1280 × 420 × 1040 mm | 1.35 kg |
Order by SKU and quote the model reference for technical or warranty enquiries.
System design
Commercial range
A twin-fan monobloc for commercial buildings, multi-dwelling schemes, schools and larger off‑gas properties. Up to eight units can be cascaded, giving a combined output of up to 320 kW with 40 kW units.
| SKU | Model | Output | Energy class 35 / 55 °C |
|---|---|---|---|
| A1027 | ACHM-H22/5R2A | 22 kW | A+++ / A+++ |
| A1028 | ACHM-H26/5R2A | 26 kW | A+++ / A+++ |
| A1029 | ACHM-H30/5R2A | 30 kW | A+++ / A+++ |
| A1030 | ACHM-H35/5R2A | 35 kW | A+++ / A+++ |
| A1031 | ACHM-H40/5R2A | 40 kW | A+++ / A+++ |
Controls and integrations
RS485 Modbus with a documented register map, so third-party controls and building management systems connect directly, without a gateway or adapter.
The AUX R290 monobloc is a supported model on Passiv smart heat pump control, with its own installation guide and commissioning notes.
A pre‑plumbed hydraulic hub with room-by-room load compensation and a built‑in heat meter, connected to the heat pump over Modbus.
Documents
FAQs
Quick answers about the AUX R290 monobloc heat pump for homeowners and installers.
Domestic models run from 4 kW to 16 kW: seven single-phase outputs from 4 kW to 16 kW and five three-phase outputs from 8 kW to 16 kW. For commercial buildings there is a twin-fan, three-phase monobloc from 22 kW to 40 kW, and up to eight units can be cascaded on one system. The SKUs are in the domestic range and commercial range tables.
Yes. It is built for UK radiators, underfloor heating and fan coil units, and supplies water up to 80 °C, held down to −10 °C outside. Typical design flow temperatures are 40 – 50 °C for radiators, 30 – 35 °C for underfloor heating and 30 – 45 °C for fan coil units.
Yes. Every domestic model is MCS certified and listed in the Product Characteristics Database at 35 °C and 55 °C, so installations by an MCS‑certified installer qualify for the Boiler Upgrade Scheme grant of up to £7,500. Who is eligible and how the grant works is explained on the homeowner page.
R290 is a natural refrigerant with a global warming potential of 3. In a monobloc the sealed refrigerant circuit stays inside the outdoor unit, so the installer makes water-side connections only.
Inverter compressors, triple insulation and the AUX patented fan design bring noise down to 35 dB(A) at 3 m. A silent mode adds two quieter levels.
The unit has native RS485 Modbus with a documented register map, so Passiv UK and Adia Thermal controls, and building management systems, connect without an adapter. A wired controller is supplied with every unit, and app control is available.
Yes. AUX heat pumps supplied by AUX UK and installed in UK homes have a 10‑year product warranty from the date of commissioning. To keep the full term, register within 90 days of commissioning and have the heat pump serviced every year by an MCS‑certified company. The steps are on the warranty page.
Every AUX heat pump supplied by AUX UK is covered from the date of commissioning and supported by our own technical team in the UK.