Fujitsu General heat pumps

Air/water monoblocAir/water split 5 series

Fujitsu General is the Japanese air conditioning and heat pump maker that sells its air-to-water heat pumps in Europe under the WATERSTAGE name. On 1 January 2026 the company changed its corporate name to GENERAL Inc.; in Germany the units are now listed under GENERAL HVAC Solutions Euro GmbH. The range covers R32 split systems (Comfort and High Power R32), the R32 Monobloc Comfort series and the R410A High Power and Super High Power split systems, each also as an indoor unit with a built-in hot water tank.

Checked November 2, 2026 · Manufacturer website · Datasheet library

Fujitsu General WATERSTAGE Split Comfort R32

Photo: Fujitsu General

Grant lists

BAFA WEP (Germany)

4 / 5 checked November 4, 2026

ZUM (Poland)

1 / 5 checked November 4, 2026

Fujitsu General in Zerofy

Zerofy has no integration for Fujitsu General 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.

Fujitsu General heat pump types

Air-to-water monoblock1 Air-to-water split4

Fujitsu General 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 monoblocR32

Fujitsu General WATERSTAGE Monobloc Comfort R32

6 models

Output: 5–10 kW
SCOP 35 °C: 4.79–5.24
Max. flow: 60 °C
BAFA WEP: 3 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Fujitsu General 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 splitR32

Fujitsu General WATERSTAGE Split Comfort R32

12 models

Output: 4.5–9.5 kW
SCOP 35 °C: 4.5
Max. flow: 55 °C
BAFA WEP: 4 models listed
ZUM: 6 models listed
Zerofy: Via SG Ready

Details and listed models

Air/water splitR32

Fujitsu General WATERSTAGE Split High Power R32

18 models

Output: 10.1–14.5 kW
SCOP 35 °C: 4.66–4.71
Max. flow: 60 °C
BAFA WEP: 20 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water splitR410A

Fujitsu General WATERSTAGE Split Super High Power

7 models

Output: 15–17 kW
SCOP 35 °C: 4.11–4.18
Max. flow: 60 °C
BAFA WEP: 6 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water splitR410A

Fujitsu General WATERSTAGE Split High Power (R410A)

10 models

Output: 10.8–15.2 kW
SCOP 35 °C: –
Max. flow: 60 °C
BAFA WEP: No model on the list
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Fujitsu General series at a glance

Series	Type	Output	SCOP 35 °C	SCOP 55 °C	Refrigerant	Max. flow	BAFA WEP	ZUM	SG Ready	Modbus	EEBUS
WATERSTAGE Monobloc Comfort R32	Air/water monobloc	5–10 kW	4.79–5.24	3.4–3.6	R32	60 °C	3 models listed	No model on the list	Yes	?Not confirmed	?Not confirmed
WATERSTAGE Split Comfort R32	Air/water split	4.5–9.5 kW	4.5	3.28	R32	55 °C	4 models listed	6 models listed	Yes	–Not documented	–Not documented
WATERSTAGE Split High Power R32	Air/water split	10.1–14.5 kW	4.66–4.71	3.35–3.5	R32	60 °C	20 models listed	No model on the list	Yes	?Not confirmed	?Not confirmed
WATERSTAGE Split Super High Power	Air/water split	15–17 kW	4.11–4.18	3.2–3.33	R410A	60 °C	6 models listed	No model on the list	Yes	–Not documented	–Not documented
WATERSTAGE Split High Power (R410A)	Air/water split	10.8–15.2 kW	–	–	R410A	60 °C	No model on the list	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.

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