Kaisai heat pumps

Air/water monoblocAir/water split 7 series

Kaisai is the own brand of the Polish HVAC distributor Klima-Therm Sp. z o.o. in Warsaw. It does not make heat pumps itself: the R32 Arctic range (monobloc KHC, split KHA with KMK hydro box, with or without hot water tank) and the R290 monoblocs KHOA and KHON are built by Midea in China and are Midea's M thermal units under Kaisai model codes. The R290 monobloc KHY with its own hydraulic module comes from a manufacturer Kaisai does not name.

Checked November 2, 2026 · Warsaw, Poland · Manufacturer website

Photo: Kaisai

Grant lists

BAFA WEP (Germany)

0 / 7 checked November 4, 2026

ZUM (Poland)

4 / 7 checked November 4, 2026

Kaisai in Zerofy

Zerofy has no integration for Kaisai 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.

Kaisai heat pump types

Air-to-water monoblock5 Air-to-water split2

Kaisai 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

Kaisai Arctic Monoblock KHC (R32)

6 models

Output: 6–16 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: 6 models listed
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR32

Kaisai Monoblock KHC 22-30 kW (R32)

2 models

Output: 22–30 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR290

Kaisai GREEN Comfort KHOA (R290)

3 models

Output: 6–10 kW
SCOP 35 °C: –
Max. flow: 75 °C
BAFA WEP: No model on the list
ZUM: No model on the list
Zerofy: Not supported

Details and listed models

Air/water monoblocR290

Kaisai GREEN Power KHON (R290)

2 models

Output: 8–10 kW
SCOP 35 °C: –
Max. flow: 80 °C
BAFA WEP: No model on the list
ZUM: No model on the list
Zerofy: Not supported

Details and listed models

Air/water monoblocR290

Kaisai Monoblock KHY (R290)

2 models

Output: 12–15 kW
SCOP 35 °C: –
Max. flow: 70 °C
BAFA WEP: No model on the list
ZUM: 2 models listed
Zerofy: Via SG Ready

Details and listed models

Kaisai 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

Kaisai Arctic Split with DHW tank (R32)

9 models

Output: 6–16 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: 9 models listed
Zerofy: Via SG Ready

Details and listed models

Air/water splitR32

Kaisai Arctic Split (R32)

6 models

Output: 6–16 kW
SCOP 35 °C: –
Max. flow: 65 °C
BAFA WEP: No model on the list
ZUM: 6 models listed
Zerofy: Via SG Ready

Details and listed models

Kaisai series at a glance

Series	Type	Output	SCOP 35 °C	SCOP 55 °C	Refrigerant	Max. flow	BAFA WEP	ZUM	SG Ready	Modbus	EEBUS
Arctic Monoblock KHC (R32)	Air/water monobloc	6–16 kW	–	–	R32	65 °C	No model on the list	6 models listed	Yes	Yes	–Not documented
Monoblock KHC 22-30 kW (R32)	Air/water monobloc	22–30 kW	–	–	R32	65 °C	No model on the list	No model on the list	Yes	Yes	–Not documented
GREEN Comfort KHOA (R290)	Air/water monobloc	6–10 kW	–	–	R290	75 °C	No model on the list	No model on the list	–Not documented	Yes	–Not documented
GREEN Power KHON (R290)	Air/water monobloc	8–10 kW	–	–	R290	80 °C	No model on the list	No model on the list	–Not documented	Yes	–Not documented
Monoblock KHY (R290)	Air/water monobloc	12–15 kW	–	–	R290	70 °C	No model on the list	2 models listed	Yes	–Not documented	–Not documented
Arctic Split with DHW tank (R32)	Air/water split	6–16 kW	–	–	R32	65 °C	No model on the list	9 models listed	Yes	Yes	–Not documented
Arctic Split (R32)	Air/water split	6–16 kW	–	–	R32	65 °C	No model on the list	6 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 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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