Weishaupt heat pumps

Air/water monoblocAir/water splitGround sourceWater sourceHot water 13 series

Max Weishaupt SE is a German family-owned company from Schwendi (Baden-Württemberg), founded in 1932 and best known for oil and gas burners and heating systems. Its heat pump range covers the R290 air-to-water monoblocks Aeroblock WAB and Evoblock WEB, the Biblock (WBB) and Splitblock (WSB) split systems, the brine-to-water Geoblock WGB (indoor, and a new R290 outdoor version), the larger WWP S brine and WWP W water-to-water units, the older WWP L air-to-water units for indoor or outdoor installation, and the WWP T domestic hot water heat pump. Current units connect to the Weishaupt WEM Portal and app.

Checked November 2, 2026 · Schwendi, Germany, founded 1932 · Manufacturer website · Datasheet library

Photo: Weishaupt

Grant lists

BAFA WEP (Germany)

12 / 13 checked November 4, 2026

ZUM (Poland)

0 / 13 checked November 4, 2026

Weishaupt in Zerofy

Zerofy has no integration for Weishaupt 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.

Weishaupt heat pump types

Air-to-water monoblock5 Air-to-water split3 Ground-source (brine/water)3 Water-source1 Hot water heat pumps1

Weishaupt 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

Weishaupt Aeroblock WAB 8 / 11 / 14

4 models

Output: 1.4–11.2 kW
SCOP 35 °C: 4.7–4.94
Max. flow: 70 °C
BAFA WEP: 4 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR290

Weishaupt Evoblock WEB 7/10 ... 13/20

4 models

Output: 2.4–13 kW
SCOP 35 °C: 4.59–5.09
Max. flow: 75 °C
BAFA WEP: 4 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR410A

Weishaupt WWP L 12 / 18 AD

4 models

Output: 5.7–9.5 kW
SCOP 35 °C: 4.25–4.49
Max. flow: –
BAFA WEP: 2 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR410A

Weishaupt WWP L 12 ID / LI 16 / 22 / 26

5 models

Output: 5.7–17.1 kW
SCOP 35 °C: 4.24–4.77
Max. flow: –
BAFA WEP: 4 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water monoblocR290

Weishaupt WWP LA 20/30

1 model

Output: 6.8–30.6 kW
SCOP 35 °C: 5.2
Max. flow: 70 °C
BAFA WEP: 1 model listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Weishaupt 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 splitR410A

Weishaupt Biblock WBB 12 / 20

4 models

Output: 3–16.6 kW
SCOP 35 °C: 4.5–4.73
Max. flow: 65 °C
BAFA WEP: 2 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Air/water splitR32

Weishaupt Splitblock WSB 6 / 8 / 10 (R32)

6 models

Output: 1–9.1 kW
SCOP 35 °C: 4.74–4.92
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

Weishaupt Splitblock WSB 12 / 15 / 18 (R410A)

3 models

Output: 3.4–15.3 kW
SCOP 35 °C: 4.19–4.46
Max. flow: 60 °C
BAFA WEP: 3 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Weishaupt Ground-source (brine/water)

Draws heat from a borehole or ground loop, so the source stays at a steady temperature all winter. Higher efficiency and no outdoor noise, but boreholes cost money and need a permit.

Ground sourceR410A

Weishaupt Geoblock WGB 8 / 14

2 models

Output: 1.7–13.5 kW
SCOP 35 °C: 5.19
Max. flow: 65 °C
BAFA WEP: 2 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Ground sourceR290

Weishaupt Geoblock WGB 20 (outdoor, R290)

2 models

Output: 3.7–20.5 kW
SCOP 35 °C: –
Max. flow: 70 °C
BAFA WEP: 2 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Ground sourceR410A

Weishaupt WWP S 11 ... 50 ID

6 models

Output: 10.4–49.6 kW
SCOP 35 °C: 4.91–5.38
Max. flow: –
BAFA WEP: 6 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Weishaupt Water-source

Uses groundwater as the heat source. Very efficient, but needs a well and a water-rights permit, so it is rare in homes. Most ground-source models can be ordered in this variant.

Water sourceR410A

Weishaupt WWP W 10 ... 45 ID

6 models

Output: 9.6–46 kW
SCOP 35 °C: 5.97–6.74
Max. flow: –
BAFA WEP: 6 models listed
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Weishaupt Hot water heat pumps

A small heat pump built onto a hot water tank. It heats drinking water only and is a good way to turn surplus solar into stored heat – or to add hot water to a house that is otherwise heated differently.

Hot waterR134a

Weishaupt WWP T 300 WA

1 model

Output: 1.5 kW
SCOP 35 °C: –
Max. flow: –
BAFA WEP: No model on the list
ZUM: No model on the list
Zerofy: Via SG Ready

Details and listed models

Weishaupt series at a glance

Series	Type	Output	SCOP 35 °C	SCOP 55 °C	Refrigerant	Max. flow	BAFA WEP	ZUM	SG Ready	Modbus	EEBUS
Aeroblock WAB 8 / 11 / 14	Air/water monobloc	1.4–11.2 kW	4.7–4.94	3.53–3.83	R290	70 °C	4 models listed	No model on the list	Yes	Yes	–Not documented
Evoblock WEB 7/10 ... 13/20	Air/water monobloc	2.4–13 kW	4.59–5.09	3.78–4.03	R290	75 °C	4 models listed	No model on the list	Yes	Yes	–Not documented
WWP L 12 / 18 AD	Air/water monobloc	5.7–9.5 kW*	4.25–4.49	3.2–3.37	R410A	–	2 models listed	No model on the list	Yes	?Not confirmed	?Not confirmed
WWP L 12 ID / LI 16 / 22 / 26	Air/water monobloc	5.7–17.1 kW*	4.24–4.77	3.23–3.71	R410A	–	4 models listed	No model on the list	Yes	–Not documented	–Not documented
WWP LA 20/30	Air/water monobloc	6.8–30.6 kW	5.2	3.95	R290	70 °C	1 model listed	No model on the list	Yes	–Not documented	–Not documented
Biblock WBB 12 / 20	Air/water split	3–16.6 kW	4.5–4.73	3.54–3.79	R410A	65 °C	2 models listed	No model on the list	Yes	Yes	–Not documented
Splitblock WSB 6 / 8 / 10 (R32)	Air/water split	1–9.1 kW	4.74–4.92	3.2–3.43	R32	60 °C	6 models listed	No model on the list	Yes	Yes	–Not documented
Splitblock WSB 12 / 15 / 18 (R410A)	Air/water split	3.4–15.3 kW	4.19–4.46	3.23–3.4	R410A	60 °C	3 models listed	No model on the list	Yes	Yes	–Not documented
Geoblock WGB 8 / 14	Ground source	1.7–13.5 kW	5.19	3.75–3.95	R410A	65 °C	2 models listed	No model on the list	Yes	Yes	–Not documented
Geoblock WGB 20 (outdoor, R290)	Ground source	3.7–20.5 kW	–	4.08	R290	70 °C	2 models listed	No model on the list	Yes	Yes	–Not documented
WWP S 11 ... 50 ID	Ground source	10.4–49.6 kW*	4.91–5.38	3.7–3.95	R410A	–	6 models listed	No model on the list	Yes	–Not documented	–Not documented
WWP W 10 ... 45 ID	Water source	9.6–46 kW*	5.97–6.74	4.28–4.75	R410A	–	6 models listed	No model on the list	Yes	?Not confirmed	?Not confirmed
WWP T 300 WA	Hot water	1.5 kW	–	–	R134a	–	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:

www.weishaupt.de/produkte/waermepumpen-solar
www.weishaupt.de/unternehmen/historie
elan1.bafa.bund.de/zvi-ui/wep/waermepumpen
BAFA Wärmeerzeuger-Portal – Wärmepumpen – checked November 4, 2026
Lista ZUM (Instytut Ochrony Środowiska) – checked November 4, 2026
EEBUS certified devices – 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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