Hargassner heat pumps

Air/water monobloc 2 series

Hargassner is a family-owned Austrian heating manufacturer from Weng im Innkreis, founded in 1984 and best known for its wood chip, pellet and log boilers. It added air-to-water heat pumps to the range to sell hybrid systems with its biomass boilers. Two monoblock lines are sold today, the Airflow-M with R452B (5 to 20 kW) and the newer AirPro with R290 (2 to 20 kW), each combined with a BASIC, STYLE or COMFORT indoor unit.

Checked November 2, 2026 · Weng im Innkreis, Austria, founded 1984 · Manufacturer website

Photo: Hargassner

Grant lists

BAFA WEP (Germany)

2 / 2 checked November 4, 2026

ZUM (Poland)

0 / 2 checked November 4, 2026

Hargassner in Zerofy

Zerofy has no integration for Hargassner 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.

Hargassner heat pump types

Air-to-water monoblock2

Hargassner 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

Hargassner AirPro

4 models

Output: 5.4–16.2 kW
SCOP 35 °C: 5–5.34
Max. flow: 75 °C
BAFA WEP: 5 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR452B

Hargassner Airflow-M

8 models

Output: 5–13.8 kW
SCOP 35 °C: 4.09–4.76
Max. flow: 65 °C
BAFA WEP: 8 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Hargassner series at a glance

Series	Type	Output	SCOP 35 °C	SCOP 55 °C	Refrigerant	Max. flow	BAFA WEP	ZUM	SG Ready	Modbus	EEBUS
AirPro	Air/water monobloc	5.4–16.2 kW	5–5.34	3.61–4.09	R290	75 °C	5 models listed	No model on the list	Yes	–Not documented	–Not documented
Airflow-M	Air/water monobloc	5–13.8 kW	4.09–4.76	3.23–3.61	R452B	65 °C	8 models listed	No model on the list	Yes	–Not documented	–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 2, 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 AUX Baxi Beretta Bosch Buderus Carrier Clivet Cooper&Hunter CTA CTC Daikin De Dietrich Defro Fujitsu General Galmet Gree Haier 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.