Photo: Defro
Air/water monoblocR290
Defro DHPi MONOTEC
Air-to-water monoblock · 7 models
Inverter R290 monobloc with a Copeland scroll compressor, single-phase in size 8 and three-phase above, operating down to -22 to -25 °C depending on the document. Sold with the DSi control box (no heater, no energy meter), the DFi hydraulic module or the DTi 200 cabinet (200 l hot water tank, 65 l buffer, two heating circuits); DFi and DTi 200 add a 6 kW heater, flow meter and electricity meter. Output is the rated heat output at 35 °C in average climate (Prated), because the catalogue's A7/W35 values (3.3 to 9.2 kW) are part-load figures. Defro's documents give different maximum flow temperatures (70 °C in the manual, up to 80 °C in the datasheet); 70 °C is the value all of them support. Defro bundles the pump with a TECH Sinum EH-01 controller and the Pstryk dynamic tariff, which shifts heating and hot water to cheap hours.
Grant lists
Grants depend on the exact model being on the official list. The counts below are the entries of this series we found in each list.
BAFA WEP (Germany)
4 models listed
4 models of this series are eligible in the BAFA Wärmeerzeuger-Portal, the list the German BEG heat pump grant depends on.
checked November 4, 2026 · See the entries
ZUM (Poland)
4 models listed
4 models of this series are on the Lista ZUM, which the Polish Czyste Powietrze grant requires.
checked November 4, 2026 · See the entries
Specifications
| Type | Air-to-water monoblock |
|---|---|
| Heating output (datasheet) | 6–14 kW |
| Design heat load Pdesignh (35 °C) | 5.8–13.7 kW |
| SCOP at 35 °C | 4.55–5.16 |
| SCOP at 55 °C | 3.55–4.07 |
| Refrigerant | R290 (GWP 3) |
| Outdoor sound power | 41–47 dB(A) |
| Max. flow temperature | 70 °C |
| Built-in backup heater | 6 kW |
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.
Control and connectivity
| SG Ready | Yes (declared by the manufacturer on the BAFA portal) |
|---|---|
| Modbus | Not confirmed |
| EEBUS | Not confirmed |
| Cloud API | not confirmed (TECH Sinum / Pstryk) – Sinum EH-01 lite plus Defro controller and Pstryk dynamic-tariff energy meter are bundled with every DHPi package; Defro does not document an API |
| §14a EnWG control | not confirmed |
Source: www.defro.pl/produkty/dhpi-monotec-hs/ · www.defro.pl/wp-content/uploads/pliki_produktow/pompy_cie... · www.defro.pl/wp-content/uploads/katalogi_i_cenniki/Pompy%...
Zerofy
Via SG ReadyZerofy has no native Defro integration yet, but this series has an SG Ready input: Zerofy can switch it through a Shelly relay on the SG Ready terminals.
Models in this series
Model codes as the manufacturer documents them. The official list entries, with their own naming, follow below.
Models on the BAFA list 4
Eligible in the BAFA Wärmeerzeuger-Portal on November 4, 2026. Anlagennummer is the entry's number in the portal; SCOP at 55 °C is derived from the portal's ηs value.
| Model | Anlagennummer | SCOP 35 °C | SCOP 55 °C | Sound | Refrigerant | SG Ready |
|---|---|---|---|---|---|---|
| DHPi MONOTEC 12 | 16017157 | 4.55 | 3.55 | 47.4 dB(A) | R290 | Yes |
| DHPi MONOTEC 20 | 16019476 | 5.16 | 3.98 | 47.0 dB(A) | R290 | Yes |
| DHPi MONOTEC 8 | 16017156 | 4.62 | 3.73 | 42.7 dB(A) | R290 | Yes |
| DHPi Monotec 16 | 16018081 | 4.94 | 4.07 | 47.0 dB(A) | R290 | Yes |
Models on the ZUM list 4
On the Lista ZUM on November 4, 2026, with the list's own device number.
| Model | ZUM id |
|---|---|
| DHPi MONOTEC 12 | PW-715861 |
| DHPi MONOTEC 16 | PW-218584 |
| DHPi MONOTEC 20 | PW-119254 |
| DHPi MONOTEC 8 | PW-418583 |
Entries as published in the official lists on the date shown; names and numbers are copied verbatim. Check the list for your exact model before you order.
Sources
- Datasheet: www.defro.pl/wp-content/uploads/pliki_produktow/pompy_ciepla/DHP%20PREMIUM/Ka...
- Product page: www.defro.pl/dhpi-monotec/
- Control and connectivity: www.defro.pl/produkty/dhpi-monotec-hs/
- Control and connectivity: www.defro.pl/wp-content/uploads/pliki_produktow/pompy_ciepla/DHPi%20MONOTEC/i...
- Control and connectivity: www.defro.pl/wp-content/uploads/katalogi_i_cenniki/Pompy%20ciepla/cennik%20i%...
- BAFA Wärmeerzeuger-Portal – Wärmepumpen – checked November 4, 2026
- Lista ZUM (Instytut Ochrony Środowiska) – checked November 4, 2026
- EEBUS certified devices – checked November 2, 2026
All figures are taken from the manufacturers' datasheets and the official BAFA and ZUM lists on the date shown and may have changed since. This is not grant advice – check the list and your grant conditions before you order. Zerofy is not affiliated with any of the manufacturers listed.
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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