Rotenso heat pumps

Air/water monoblocAir/water split 8 series

Rotenso is a Polish air-conditioning, ventilation and heat pump brand owned by Thermosilesia sp. z o.o. sp. k.; the heat pumps are placed on the market by Rotenso Sp. z o.o. in Ruda Śląska. The range consists of R32 air-to-water units for the Polish market: the Aquami family (monobloc from 4 to 30 kW, split with hydrobox, All in Split with a built-in 190 or 240 l hot water tank, and the Multi hybrid that shares its outdoor unit with up to three air conditioners), the Airmi monobloc and split in three casing colours, the compact Heatmi split and the Windmi monobloc. Rotenso does not name the factory that builds the units.

Checked November 2, 2026 · Ruda Śląska, Poland · Manufacturer website

Photo: Rotenso

Grant lists

BAFA WEP (Germany)

0 / 8 checked November 4, 2026

ZUM (Poland)

7 / 8 checked November 4, 2026

Rotenso in Zerofy

Zerofy has no integration for Rotenso 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.

Rotenso heat pump types

Air-to-water monoblock3 Air-to-water split5

Rotenso 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

Rotenso Aquami Monoblock

9 models

Output: 4.2–30.1 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: 7 models listed
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR32

Rotenso Airmi Monoblock

7 models

Output: 4–15.9 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: 15 models listed
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR32

Rotenso Windmi Monoblock

6 models

Output: 6–16 kW
SCOP 35 °C: –
Max. flow: 62 °C
BAFA WEP: No model on the list
ZUM: 3 models listed
Zerofy: Not supported

4 models

Output: 4.3–9.5 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: 4 models listed
Zerofy: Via SG Ready

Details and listed models

Rotenso series at a glance

Series	Type	Output	SCOP 35 °C	SCOP 55 °C	Refrigerant	Max. flow	BAFA WEP	ZUM	SG Ready	Modbus	EEBUS
Aquami Monoblock	Air/water monobloc	4.2–30.1 kW	–	–	R32	65 °C	No model on the list	7 models listed	Yes	–Not documented	–Not documented
Airmi Monoblock	Air/water monobloc	4–15.9 kW	–	–	R32	65 °C	No model on the list	15 models listed	Yes	–Not documented	–Not documented
Windmi Monoblock	Air/water monobloc	6–16 kW	–	–	R32	62 °C	No model on the list	3 models listed	–Not documented	–Not documented	–Not documented
Aquami All in Split	Air/water split	4.3–16 kW	–	–	R32	65 °C	No model on the list	11 models listed	Yes	–Not documented	–Not documented
Aquami Split	Air/water split	4.3–16 kW	–	–	R32	65 °C	No model on the list	7 models listed	Yes	–Not documented	–Not documented
Aquami Multi	Air/water split	8 kW	–	–	R32	60 °C	No model on the list	No model on the list	Yes	–Not documented	–Not documented
Airmi Split	Air/water split	4.2–16.2 kW	–	–	R32	65 °C	No model on the list	15 models listed	Yes	–Not documented	–Not documented
Heatmi Split	Air/water split	4.3–9.5 kW	–	–	R32	65 °C	No model on the list	4 models listed	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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