AUX heat pumps

Air/water monoblocAir/water split 4 series

AUX is a large Chinese air-conditioning manufacturer. Its heat pumps are made by Ningbo AUX Electric Co., Ltd., part of AUX Group, which was founded in Ningbo in 1986. AUX's 2025 catalogue lists three air-to-water lines: the A-Thermal R290 monobloc (4 to 16 kW, flow up to 80 °C), an R290 all-in-one split with a 190 l hot water tower, and an R32 split with a wall-hung hydro module. The earlier R32 monobloc is no longer in the catalogue but is still on the BAFA list. In Poland AUX is sold by AUX Air Conditioner Polska (Wienkra Sp. z o.o.).

Checked November 4, 2026 · Ningbo, China, founded 1986 · Manufacturer website · Datasheet library

Photo: AUX

Grant lists

BAFA WEP (Germany)

4 / 4 checked November 4, 2026

ZUM (Poland)

1 / 4 checked November 4, 2026

AUX in Zerofy

Zerofy has no integration for AUX yet. Where a series below has an SG Ready input, Zerofy can still switch it through a Shelly relay. The heat pump comparison lists every brand Zerofy supports.

AUX heat pump types

Air-to-water monoblock2 Air-to-water split2

AUX Air-to-water monoblock

The whole refrigerant circuit sits in one outdoor unit; only water pipes run into the house. The most common choice for retrofits, because no refrigerant lines need to be installed inside.

Air/water monoblocR290

AUX A-Thermal R290 Monoblock

12 models

Output: 4.5–15.1 kW
SCOP 35 °C: 4.72–5.15
Max. flow: 80 °C
BAFA WEP: 12 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR32Discontinued

AUX R32 Monoblock

10 models

Output: 5.4–12.3 kW
SCOP 35 °C: 4.72–5.2
Max. flow: –
BAFA WEP: 10 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

AUX Air-to-water split

An outdoor unit plus an indoor hydraulic station, joined by refrigerant lines. The pipework inside the house stays frost-free without glycol, and the indoor part is often quieter to place.

Air/water splitR290

AUX A-Thermal R290 All-in-One Split

6 models

Output: 6.4–15.1 kW
SCOP 35 °C: 4.77–5.15
Max. flow: 80 °C
BAFA WEP: 8 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water splitR32

AUX A-Thermal R32 Split

7 models

Output: 4.3–16.1 kW
SCOP 35 °C: 4.72–5.08
Max. flow: 65 °C
BAFA WEP: 11 models listed
ZUM: 7 models listed
Zerofy: Via SG Ready

Details and listed models

AUX series at a glance

Series	Type	Output	SCOP 35 °C	SCOP 55 °C	Refrigerant	Max. flow	BAFA WEP	ZUM	SG Ready	Modbus	EEBUS
A-Thermal R290 Monoblock	Air/water monobloc	4.5–15.1 kW	4.72–5.15	3.83–3.93	R290	80 °C	12 models listed	No model on the list	Yes	Yes	–Not documented
R32 Monoblock Discontinued	Air/water monobloc	5.4–12.3 kW*	4.72–5.2	3.38–3.55	R32	–	10 models listed	No model on the list	Yes	?Not confirmed	?Not confirmed
A-Thermal R290 All-in-One Split	Air/water split	6.4–15.1 kW	4.77–5.15	3.83–3.88	R290	80 °C	8 models listed	No model on the list	Yes	Yes	–Not documented
A-Thermal R32 Split	Air/water split	4.3–16.1 kW	4.72–5.08	3.38–3.48	R32	65 °C	11 models listed	7 models listed	Yes	Yes	–Not documented

Heating output is the figure in the manufacturer's datasheet; the basis (nominal output at A7/W35 or B0/W35, or design heat load) differs between brands, so check the datasheet before comparing. * = design heat load Pdesignh at 35 °C from the BAFA portal.

Sources

Specifications come from the manufacturer's datasheets linked above, grant status from the official lists below, checked November 4, 2026:

SG Ready is a label of the Bundesverband Wärmepumpe (BWP) e.V.; “Yes” means the manufacturer documents the two-input interface or declares it on the BAFA portal, not that the series carries the BWP label – the label list is at waermepumpe.de. EEBUS is a standard of the EEBus Initiative e.V.; Modbus is a registered trademark of Schneider Electric, licensed to the Modbus Organization. Product names, logos and photos belong to their manufacturers and are shown to identify the products. Grant data: BAFA Wärmeerzeuger-Portal and Lista ZUM (IOŚ-PIB) as of the dates shown; the SCOP at 55 °C in the BAFA tables is calculated by Zerofy from the portal's ηs value.

Heat with your own solar power

Zerofy moves your heat pump's runtime into the hours with surplus solar power or low prices – automatically.

Get Zerofy

Other heat pump brands

Aermec Aira Alpha Innotec Ariston Atlantic Austria Email Baxi Beretta Bosch Buderus Carrier Clivet Cooper&Hunter CTA CTC Daikin De Dietrich Defro Fujitsu General Galmet Gree Haier Hargassner Heiztechnik Hewalex Hisense Hitachi HKS Lazar Ideal Heating iDM Energiesysteme Immergas Intergas Kaisai Kermi Kołton Kospel Kostrzewa LAMBDA Wärmepumpen LG Midea Mitsubishi Electric NIBE Novelan Ochsner OVUM Heiztechnik Panasonic PHNIX Qvantum Remeha Rotenso Samsung Sauter Sevra Sinclair Stiebel Eltron Tecalor Thermia Thermor Toshiba Vaillant Vasco Viessmann Weheat Weishaupt Wolf YORK

Compare all brands in the heat pump database.