Bosch heat pumps

Air/water monoblocGround sourceHot water 9 series

Bosch Home Comfort is the residential heating and cooling brand of Bosch Thermotechnik GmbH in Wetzlar, Germany, which also operates the Buderus brand. Its Compress heat pump range includes air-to-water units (Compress 3800i, 5800i, 6800i and 8800i with R290, the older 7001i and 7400i with R410A), brine-to-water units (Compress 7800i and 7801i LW), the larger Compress 5000 AW and the Compress 5000 DW domestic hot water heat pump.

Checked November 2, 2026 · Wetzlar, Germany · Manufacturer website · Datasheet library

Bosch Compress 3800i AW

Photo: Bosch

Grant lists

BAFA WEP (Germany)

6 / 9 checked November 4, 2026

ZUM (Poland)

4 / 9 checked November 4, 2026

Bosch in Zerofy

Coming soon

Zerofy support for Bosch is in development. Until it is live, a Bosch heat pump with an SG Ready input can already be controlled with a Shelly relay.

Bosch heat pump types

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

Bosch 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

Bosch Compress 3800i AW

7 models

Output
4.3–12.8 kW
SCOP 35 °C
4.96–5.04
Max. flow
75 °C
BAFA WEP
10 models listed
ZUM
9 models listed
Zerofy
Coming soon
Details and listed models

Air/water monoblocR290

Bosch Compress 5800i / 6800i AW

7 models

Output
4.4–12.2 kW
SCOP 35 °C
4.16–4.77
Max. flow
75 °C
BAFA WEP
34 models listed
ZUM
60 models listed
Zerofy
Coming soon
Details and listed models

Air/water monoblocR290

Bosch Compress 8800i AW

8 models

Output
10.3–13.8 kW
SCOP 35 °C
5.02–5.4
Max. flow
75 °C
BAFA WEP
9 models listed
ZUM
No model on the list
Zerofy
Coming soon
Details and listed models

Air/water monoblocR410A

Bosch Compress 7000i / 7001i / 7400i AW

9 models

Output
4.4–14.6 kW
SCOP 35 °C
4.27–5.16
Max. flow
60 °C
BAFA WEP
27 models listed
ZUM
No model on the list
Zerofy
Coming soon
Details and listed models

Air/water monoblocR290

Bosch Compress 5000 AW

4 models

Output
19.8–38.4 kW
SCOP 35 °C
3.87–5.2
Max. flow
70 °C
BAFA WEP
5 models listed
ZUM
No model on the list
Zerofy
Coming soon
Details and listed models

Bosch 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 sourceR290

Bosch Compress 7800i / 7801i LW

8 models

Output
5.8–16.8 kW
SCOP 35 °C
5.01–5.49
Max. flow
75 °C
BAFA WEP
8 models listed
ZUM
24 models listed
Zerofy
Coming soon
Details and listed models

Ground sourceR410A

Bosch Compress 7000i / 7001i LW and LWM

10 models

Output
2–16 kW
SCOP 35 °C
5.33–5.55
Max. flow
71 °C
BAFA WEP
No model on the list
ZUM
No model on the list
Zerofy
Coming soon
Details and listed models

Ground sourceR410A

Bosch Compress 6000 LW and LWM

8 models

Output
5.5–17.1 kW
SCOP 35 °C
4.4–5
Max. flow
62 °C
BAFA WEP
No model on the list
ZUM
6 models listed
Zerofy
Coming soon
Details and listed models

Bosch 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 waterR513A

Bosch Compress 5000 DW

4 models

Output
–
SCOP 35 °C
–
Max. flow
–
BAFA WEP
Not confirmed
ZUM
Not confirmed
Zerofy
Coming soon
Details and listed models

Bosch series at a glance

Series Type Output SCOP 35 °C SCOP 55 °C Refrigerant Max. flow BAFA WEP ZUM SG Ready Modbus EEBUS
Compress 3800i AW Air/water monobloc 4.3–12.8 kW* 4.96–5.04 3.6–3.93 R290 75 °C 10 models listed 9 models listed Yes –Not documented Yes
Compress 5800i / 6800i AW Air/water monobloc 4.4–12.2 kW* 4.16–4.77 3.25–3.63 R290 75 °C 34 models listed 60 models listed Yes –Not documented Yes
Compress 8800i AW Air/water monobloc 10.3–13.8 kW* 5.02–5.4 4–4.13 R290 75 °C 9 models listed No model on the list Yes –Not documented Yes
Compress 7000i / 7001i / 7400i AW Air/water monobloc 4.4–14.6 kW* 4.27–5.16 3.2–3.7 R410A 60 °C 27 models listed No model on the list Yes –Not documented Yes
Compress 5000 AW Air/water monobloc 19.8–38.4 kW* 3.87–5.2 3.2–3.95 R290 70 °C 5 models listed No model on the list Yes –Not documented –Not documented
Compress 7800i / 7801i LW Ground source 5.8–16.8 kW* 5.01–5.49 3.73–4.05 R290 75 °C 8 models listed 24 models listed Yes –Not documented Yes
Compress 7000i / 7001i LW and LWM Ground source 2–16 kW 5.33–5.55 3.99–4.17 R410A 71 °C No model on the list No model on the list ?Not confirmed ?Not confirmed ?Not confirmed
Compress 6000 LW and LWM Ground source 5.5–17.1 kW 4.4–5 3.28–3.73 R410A 62 °C No model on the list 6 models listed ?Not confirmed ?Not confirmed ?Not confirmed
Compress 5000 DW Hot water – – – R513A – Not confirmed Not confirmed ?Not confirmed ?Not confirmed ?Not confirmed

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:

  1. elan1.bafa.bund.de/zvi-ui/wep/waermepumpen
  2. www.bosch-homecomfort.com/de/de/ocs/wohngebaeude/waermepumpen-854510-c/
  3. www.bosch-homecomfort.com/de/de/ocs/wohngebaeude/luft-wasser-waermepumpen-854511-c/
  4. www.bosch-homecomfort.com/de/de/ocs/wohngebaeude/sole-wasser-waermepumpen-854516-c/
  5. www.bosch-homecomfort.com/de/de/ocs/wohngebaeude/warmwasser-waermepumpen-854525-c/
  6. www.buderus.de/de/unternehmen/rechtliche-hinweise/impressum
  7. BAFA Wärmeerzeuger-Portal – Wärmepumpen – checked November 4, 2026
  8. Lista ZUM (Instytut Ochrony Środowiska) – checked November 4, 2026
  9. 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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