Becker & Wolf 80L Wall Mounted Heat Pump Water Heater R290 – BWHP080WM290 – A+ Rated – WiFi – G3 Kit
80 Litres Wall Mounted R290 Refrigerant A+ Energy Rating WiFi Smart Control G3 Kit Included Becker & Wolf
The Becker & Wolf BWHP080WM290 is a compact, wall-mounted, all-in-one hot water heat pump for 1–2 person homes, studios, and small offices. Using R290 (propane) — one of the most efficient and environmentally friendly refrigerants available, with a GWP of just 3 — it achieves an ErP A+ energy rating and a COP of up to 4.32, meaning every £1 of electricity input produces the equivalent of up to £4.32 worth of heat. The all-in-one design means no separate outdoor unit: the compressor, fan, microchannel heat exchanger, and 80L stainless steel tank are all contained in one slim wall-hung unit. Controlled via the Becker & Wolf app (iOS & Android) and featuring a 2 kW backup electric heater for cold spells, this unit delivers reliable mains-pressure hot water year-round. Supplied with a full G3 safety kit and potable expansion vessel — ready for direct mains connection.
ℹ️ Capacity: 80 L · Refrigerant: R290 · Installation: Wall Mounted — Vertical · Suitable for: 1–2 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 80L of cold water from 15°C to 55°C at the rated hot water production of 20 L/h takes approximately 240 minutes (~4.0 hours) under standard conditions (20°C ambient air). In Boost / Electric Backup Mode (2 kW immersion), recovery takes approximately 111 minutes (~1.9 hours) independent of ambient temperature. Recovery is estimated under standard EN16147 test conditions (20°C ambient, 15°C inlet, 55°C set point). Actual times vary with ambient temperature and inlet water temperature.
Key Features
- ✓R290 (propane) refrigerant — natural refrigerant with a GWP of just 3 and zero ODP; fully F-Gas regulation compliant and future-proofed against HFC phase-outs
- ✓All-in-one design — compressor, microchannel heat exchanger, fan, and tank all in one compact unit; no separate outdoor unit, no refrigerant pipework between units, significantly simpler and faster to install than split-unit heat pumps
- ✓A+ Energy Efficiency rating under ErP Directive — up to 4× cheaper to run than a direct electric immersion heater
- ✓Max water temperature 75°C — high enough to meet UK Legionella control requirements; thermal disinfection cycle can be set from the control panel
- ✓Backup 2 kW electric immersion heater — integrated auxiliary element maintains hot water availability during extreme cold or periods of high demand; ensures DHW supply even when heat pump performance is reduced
- ✓WiFi smart control — compatible with the Becker & Wolf app (iOS & Android); monitor and adjust water temperature, operating mode, schedules, and energy usage remotely
- ✓Multiple operating modes — Heat Pump Only (most efficient), Auto (intelligently switches between modes), Boost (electric only, maximum recovery speed), Holiday mode, Timer schedules
- ✓Magnesium anode protection — extends inner tank life by preventing corrosion through sacrificial anode action; replaces standard corrosion protection additives
- ✓Vertical top discharge — hot exhaust air exits via the top; suitable for indoor installation in utility rooms, loft spaces, garages, or plant rooms. Air duct connection available on floor-standing models (150mm diameter) for through-wall ducting
- ✓Working temperature range –7°C to +43°C — operates year-round in UK conditions; auxiliary electric heater automatically activates if ambient temperature drops below the heat pump's effective range
- ✓IPX1 weather protection — suitable for installation in damp environments including garages and service areas
- ✓Becker & Wolf App — available on Apple App Store and Google Play; remote access for customers and installers including diagnostics and fault alerts
- ✓Includes G3 kit and potable expansion vessel — G3 safety group (pressure reducing valve, expansion valve, check valve, pressure gauge, tundish) and compatible potable expansion vessel included; ready for direct mains connection
- ✓Top inlet / top outlet water connections — both cold inlet and hot outlet connections at the top of the unit, ideal for wall installation where plumbing runs are concealed
- ✓Compact dimensions: Φ468 × 1,222 mm — 468mm diameter circular footprint and 1,222mm tall; fits in standard airing cupboard or utility room wall space
- ✓48 kg net weight — manageable with two installers; no heavy lifting equipment required
- ✓Rated hot water production: 20 L/h (at 20°C ambient, heat pump mode); backed by 2kW electric element for peak demand
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | BWHP080WM290 |
| Barcode / EAN | 5061085070048 |
| Tank Capacity | 80 litres |
| Refrigerant | R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class | A+ (ErP) |
| Energy Efficiency nWh | 118.3% |
| COP (EN16147 test conditions) | 2.787 |
| COP (peak, favourable conditions) | Up to 4.32 |
| Tapping Cycle (ErP) | M (medium) |
| Rated Heating Capacity | 0.95 kW |
| Rated Hot Water Production | 20 L/h (at 20°C ambient) |
| Aux. Electric Heater | 2 kW |
| Default Water Temperature | 55°C (adjustable up to 75°C) |
| Working Ambient Range | –7°C to +43°C |
| Rated Power Input (HP mode) | 220 W |
| Rated Current Input | 0.98 A |
| Max Power Input (Boost mode) | 2,300 W (max, electric element) |
| Max Current Input | 10.2 A |
| Power Supply | 220–240 V / 1-phase / 50 Hz |
| Air Flow Rate | 450 m³/h |
| Air Discharge Direction | Vertical (upward) |
| Air Duct Connection | None (no duct — open room installation) |
| Noise Level | 48 dB(A) |
| IP Rating | IPX1 |
| Water Pipe Connections | DN15 (½") |
| Max Water Pressure | 0.8 MPa (8 bar) tank working pressure |
| Max Allowable System Pressure | 3.0 MPa |
| Unpacked Dimensions (Ø × H) | Φ468 mm × 1,222 mm |
| Packed Dimensions (L×W×H) | 580 × 580 × 1,245 mm |
| Net Weight | 48 kg |
| Gross Weight | 53 kg |
| CO₂ Equivalent (R290 charge) | 0.00045 t CO₂e |
What's Included
- ✓BWHP080WM290 80L wall-mounted heat pump water heater unit
- ✓G3 safety group kit (pressure reducing valve, expansion relief valve, check valve, pressure gauge, tundish)
- ✓Potable expansion vessel (sized for this unit)
- ✓Magnesium anode (fitted inside tank)
- ✓Installation and user manual
- ✓Becker & Wolf WiFi module (for app connectivity)
Installation Notes
- ✓Installation must be carried out by a qualified heating engineer. Refrigerant handling (if required) requires F-Gas / REFCOM certification
- ✓Minimum room size: ~5–8 m³ recommended for open-room installation without ducting; larger is better as the unit extracts heat from the surrounding air
- ✓No outdoor unit required — entirely indoor installation
- ✓Wall fixing: Secure to masonry or structural wall capable of supporting 53 kg gross weight; use appropriate fixings and a minimum of 2 fixing points at the manufacturer's specified bracket positions
- ✓Electrical connection: Standard 13A UK socket or fused spur (max 10.2A); 2.3kW max — single-phase 230V. A dedicated circuit with RCD protection is recommended
- ✓Water connections: DN15 (½") inlet and outlet at the top of the unit. The G3 kit must be installed on the cold water supply. The potable expansion vessel must be fitted on the cold supply side
- ✓Condensate drain: The unit will produce condensate; a suitable condensate drain point is required nearby
Frequently Asked Questions
Can this heat pump replace my gas boiler for hot water?
Yes — the Becker & Wolf all-in-one heat pump is designed as a direct replacement for gas water heaters and combi boiler DHW. It provides mains-pressure hot water independently of any boiler. You will need a suitable indoor space (minimum ~5–8m³ for wall-mounted, ~10–15m³ for floor-standing) with sufficient ventilation or air duct connection. An F-Gas or REFCOM qualified engineer must handle the refrigerant if the unit ever needs regassing.
What ambient temperature does the heat pump work at?
The heat pump operates in ambient air temperatures from –7°C to +43°C. Below about 5°C, COP reduces; the integrated 2 kW electric backup heater automatically activates at low temperatures to maintain the set water temperature. In practice, most UK installations operate efficiently throughout the year.
Does it need an outdoor unit?
No — this is a self-contained all-in-one unit. The heat pump compressor, heat exchanger, fan, and storage tank are all integrated in one unit. There is no separate outdoor unit and no refrigerant pipework to run between two units. The unit draws heat from the room air and can be installed entirely indoors, optionally ducted to draw or exhaust air through an external wall.
What room size does this need for installation?
As a rough guide: wall-mounted 80L/100L units need a minimum space of approximately 5–8m³; floor-standing 200–300L units need approximately 10–20m³. The heat pump extracts heat from the surrounding air — too small a space will cause the room to cool too quickly, reducing efficiency. Alternatively, connect a 150mm air duct (floor-standing models) to draw from or exhaust to outside air, allowing installation in smaller spaces.
Is this MCS certified?
The Becker & Wolf heat pump water heaters are A+ ErP-rated and CE certified. Please check with Quality Heating / your installer regarding current MCS certification status for eligibility for any available UK government grants or incentive schemes.
What is the Legionella control cycle?
The Becker & Wolf units can reach 75°C, sufficient for thermal disinfection of the tank to control Legionella bacteria. A periodic disinfection cycle can be scheduled via the Becker & Wolf app or the control panel. UK guidance recommends domestic hot water systems store water at 60°C or above to control Legionella risk.
Can it be connected to solar PV?
Yes — the unit can be timed or configured to run primarily during daylight hours when solar PV generation is highest, reducing running costs further. Integration with solar divert controllers (such as Eddi, Zappi, or similar) is possible by scheduling the boost/immersion mode via the app or an external timer.
What size household is the 80L suited to?
The 80L BWHP080WM290 is designed for 1–2 person households, single-occupancy apartments, studio flats, and small offices. For a family of 3 or more, consider the 100L, 200L, 250L, or 300L models for adequate hot water capacity.
What is the difference between the 80L and 100L wall-mounted models?
Both models share the same wall-mounted R290 all-in-one design and similar dimensions. The 100L (BWHP100WM290) offers 25% more tank capacity (suitable for 2–3 persons), a higher rated heating capacity, and a higher rated hot water production rate, making recovery faster for higher demand households.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Becker & Wolf 80L Wall Mounted Heat Pump Water Heater R290 – BWHP080WM290 – A+ Rated – WiFi – G3 Kit
Becker & Wolf 80L Wall Mounted Heat Pump Water Heater R290 – BWHP080WM290 – A+ Rated – WiFi – G3 Kit
80 Litres Wall Mounted R290 Refrigerant A+ Energy Rating WiFi Smart Control G3 Kit Included Becker & Wolf
The Becker & Wolf BWHP080WM290 is a compact, wall-mounted, all-in-one hot water heat pump for 1–2 person homes, studios, and small offices. Using R290 (propane) — one of the most efficient and environmentally friendly refrigerants available, with a GWP of just 3 — it achieves an ErP A+ energy rating and a COP of up to 4.32, meaning every £1 of electricity input produces the equivalent of up to £4.32 worth of heat. The all-in-one design means no separate outdoor unit: the compressor, fan, microchannel heat exchanger, and 80L stainless steel tank are all contained in one slim wall-hung unit. Controlled via the Becker & Wolf app (iOS & Android) and featuring a 2 kW backup electric heater for cold spells, this unit delivers reliable mains-pressure hot water year-round. Supplied with a full G3 safety kit and potable expansion vessel — ready for direct mains connection.
ℹ️ Capacity: 80 L · Refrigerant: R290 · Installation: Wall Mounted — Vertical · Suitable for: 1–2 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 80L of cold water from 15°C to 55°C at the rated hot water production of 20 L/h takes approximately 240 minutes (~4.0 hours) under standard conditions (20°C ambient air). In Boost / Electric Backup Mode (2 kW immersion), recovery takes approximately 111 minutes (~1.9 hours) independent of ambient temperature. Recovery is estimated under standard EN16147 test conditions (20°C ambient, 15°C inlet, 55°C set point). Actual times vary with ambient temperature and inlet water temperature.
Key Features
- ✓R290 (propane) refrigerant — natural refrigerant with a GWP of just 3 and zero ODP; fully F-Gas regulation compliant and future-proofed against HFC phase-outs
- ✓All-in-one design — compressor, microchannel heat exchanger, fan, and tank all in one compact unit; no separate outdoor unit, no refrigerant pipework between units, significantly simpler and faster to install than split-unit heat pumps
- ✓A+ Energy Efficiency rating under ErP Directive — up to 4× cheaper to run than a direct electric immersion heater
- ✓Max water temperature 75°C — high enough to meet UK Legionella control requirements; thermal disinfection cycle can be set from the control panel
- ✓Backup 2 kW electric immersion heater — integrated auxiliary element maintains hot water availability during extreme cold or periods of high demand; ensures DHW supply even when heat pump performance is reduced
- ✓WiFi smart control — compatible with the Becker & Wolf app (iOS & Android); monitor and adjust water temperature, operating mode, schedules, and energy usage remotely
- ✓Multiple operating modes — Heat Pump Only (most efficient), Auto (intelligently switches between modes), Boost (electric only, maximum recovery speed), Holiday mode, Timer schedules
- ✓Magnesium anode protection — extends inner tank life by preventing corrosion through sacrificial anode action; replaces standard corrosion protection additives
- ✓Vertical top discharge — hot exhaust air exits via the top; suitable for indoor installation in utility rooms, loft spaces, garages, or plant rooms. Air duct connection available on floor-standing models (150mm diameter) for through-wall ducting
- ✓Working temperature range –7°C to +43°C — operates year-round in UK conditions; auxiliary electric heater automatically activates if ambient temperature drops below the heat pump's effective range
- ✓IPX1 weather protection — suitable for installation in damp environments including garages and service areas
- ✓Becker & Wolf App — available on Apple App Store and Google Play; remote access for customers and installers including diagnostics and fault alerts
- ✓Includes G3 kit and potable expansion vessel — G3 safety group (pressure reducing valve, expansion valve, check valve, pressure gauge, tundish) and compatible potable expansion vessel included; ready for direct mains connection
- ✓Top inlet / top outlet water connections — both cold inlet and hot outlet connections at the top of the unit, ideal for wall installation where plumbing runs are concealed
- ✓Compact dimensions: Φ468 × 1,222 mm — 468mm diameter circular footprint and 1,222mm tall; fits in standard airing cupboard or utility room wall space
- ✓48 kg net weight — manageable with two installers; no heavy lifting equipment required
- ✓Rated hot water production: 20 L/h (at 20°C ambient, heat pump mode); backed by 2kW electric element for peak demand
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | BWHP080WM290 |
| Barcode / EAN | 5061085070048 |
| Tank Capacity | 80 litres |
| Refrigerant | R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class | A+ (ErP) |
| Energy Efficiency nWh | 118.3% |
| COP (EN16147 test conditions) | 2.787 |
| COP (peak, favourable conditions) | Up to 4.32 |
| Tapping Cycle (ErP) | M (medium) |
| Rated Heating Capacity | 0.95 kW |
| Rated Hot Water Production | 20 L/h (at 20°C ambient) |
| Aux. Electric Heater | 2 kW |
| Default Water Temperature | 55°C (adjustable up to 75°C) |
| Working Ambient Range | –7°C to +43°C |
| Rated Power Input (HP mode) | 220 W |
| Rated Current Input | 0.98 A |
| Max Power Input (Boost mode) | 2,300 W (max, electric element) |
| Max Current Input | 10.2 A |
| Power Supply | 220–240 V / 1-phase / 50 Hz |
| Air Flow Rate | 450 m³/h |
| Air Discharge Direction | Vertical (upward) |
| Air Duct Connection | None (no duct — open room installation) |
| Noise Level | 48 dB(A) |
| IP Rating | IPX1 |
| Water Pipe Connections | DN15 (½") |
| Max Water Pressure | 0.8 MPa (8 bar) tank working pressure |
| Max Allowable System Pressure | 3.0 MPa |
| Unpacked Dimensions (Ø × H) | Φ468 mm × 1,222 mm |
| Packed Dimensions (L×W×H) | 580 × 580 × 1,245 mm |
| Net Weight | 48 kg |
| Gross Weight | 53 kg |
| CO₂ Equivalent (R290 charge) | 0.00045 t CO₂e |
What's Included
- ✓BWHP080WM290 80L wall-mounted heat pump water heater unit
- ✓G3 safety group kit (pressure reducing valve, expansion relief valve, check valve, pressure gauge, tundish)
- ✓Potable expansion vessel (sized for this unit)
- ✓Magnesium anode (fitted inside tank)
- ✓Installation and user manual
- ✓Becker & Wolf WiFi module (for app connectivity)
Installation Notes
- ✓Installation must be carried out by a qualified heating engineer. Refrigerant handling (if required) requires F-Gas / REFCOM certification
- ✓Minimum room size: ~5–8 m³ recommended for open-room installation without ducting; larger is better as the unit extracts heat from the surrounding air
- ✓No outdoor unit required — entirely indoor installation
- ✓Wall fixing: Secure to masonry or structural wall capable of supporting 53 kg gross weight; use appropriate fixings and a minimum of 2 fixing points at the manufacturer's specified bracket positions
- ✓Electrical connection: Standard 13A UK socket or fused spur (max 10.2A); 2.3kW max — single-phase 230V. A dedicated circuit with RCD protection is recommended
- ✓Water connections: DN15 (½") inlet and outlet at the top of the unit. The G3 kit must be installed on the cold water supply. The potable expansion vessel must be fitted on the cold supply side
- ✓Condensate drain: The unit will produce condensate; a suitable condensate drain point is required nearby
Frequently Asked Questions
Can this heat pump replace my gas boiler for hot water?
Yes — the Becker & Wolf all-in-one heat pump is designed as a direct replacement for gas water heaters and combi boiler DHW. It provides mains-pressure hot water independently of any boiler. You will need a suitable indoor space (minimum ~5–8m³ for wall-mounted, ~10–15m³ for floor-standing) with sufficient ventilation or air duct connection. An F-Gas or REFCOM qualified engineer must handle the refrigerant if the unit ever needs regassing.
What ambient temperature does the heat pump work at?
The heat pump operates in ambient air temperatures from –7°C to +43°C. Below about 5°C, COP reduces; the integrated 2 kW electric backup heater automatically activates at low temperatures to maintain the set water temperature. In practice, most UK installations operate efficiently throughout the year.
Does it need an outdoor unit?
No — this is a self-contained all-in-one unit. The heat pump compressor, heat exchanger, fan, and storage tank are all integrated in one unit. There is no separate outdoor unit and no refrigerant pipework to run between two units. The unit draws heat from the room air and can be installed entirely indoors, optionally ducted to draw or exhaust air through an external wall.
What room size does this need for installation?
As a rough guide: wall-mounted 80L/100L units need a minimum space of approximately 5–8m³; floor-standing 200–300L units need approximately 10–20m³. The heat pump extracts heat from the surrounding air — too small a space will cause the room to cool too quickly, reducing efficiency. Alternatively, connect a 150mm air duct (floor-standing models) to draw from or exhaust to outside air, allowing installation in smaller spaces.
Is this MCS certified?
The Becker & Wolf heat pump water heaters are A+ ErP-rated and CE certified. Please check with Quality Heating / your installer regarding current MCS certification status for eligibility for any available UK government grants or incentive schemes.
What is the Legionella control cycle?
The Becker & Wolf units can reach 75°C, sufficient for thermal disinfection of the tank to control Legionella bacteria. A periodic disinfection cycle can be scheduled via the Becker & Wolf app or the control panel. UK guidance recommends domestic hot water systems store water at 60°C or above to control Legionella risk.
Can it be connected to solar PV?
Yes — the unit can be timed or configured to run primarily during daylight hours when solar PV generation is highest, reducing running costs further. Integration with solar divert controllers (such as Eddi, Zappi, or similar) is possible by scheduling the boost/immersion mode via the app or an external timer.
What size household is the 80L suited to?
The 80L BWHP080WM290 is designed for 1–2 person households, single-occupancy apartments, studio flats, and small offices. For a family of 3 or more, consider the 100L, 200L, 250L, or 300L models for adequate hot water capacity.
What is the difference between the 80L and 100L wall-mounted models?
Both models share the same wall-mounted R290 all-in-one design and similar dimensions. The 100L (BWHP100WM290) offers 25% more tank capacity (suitable for 2–3 persons), a higher rated heating capacity, and a higher rated hot water production rate, making recovery faster for higher demand households.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
80 Litres Wall Mounted R290 Refrigerant A+ Energy Rating WiFi Smart Control G3 Kit Included Becker & Wolf
The Becker & Wolf BWHP080WM290 is a compact, wall-mounted, all-in-one hot water heat pump for 1–2 person homes, studios, and small offices. Using R290 (propane) — one of the most efficient and environmentally friendly refrigerants available, with a GWP of just 3 — it achieves an ErP A+ energy rating and a COP of up to 4.32, meaning every £1 of electricity input produces the equivalent of up to £4.32 worth of heat. The all-in-one design means no separate outdoor unit: the compressor, fan, microchannel heat exchanger, and 80L stainless steel tank are all contained in one slim wall-hung unit. Controlled via the Becker & Wolf app (iOS & Android) and featuring a 2 kW backup electric heater for cold spells, this unit delivers reliable mains-pressure hot water year-round. Supplied with a full G3 safety kit and potable expansion vessel — ready for direct mains connection.
ℹ️ Capacity: 80 L · Refrigerant: R290 · Installation: Wall Mounted — Vertical · Suitable for: 1–2 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 80L of cold water from 15°C to 55°C at the rated hot water production of 20 L/h takes approximately 240 minutes (~4.0 hours) under standard conditions (20°C ambient air). In Boost / Electric Backup Mode (2 kW immersion), recovery takes approximately 111 minutes (~1.9 hours) independent of ambient temperature. Recovery is estimated under standard EN16147 test conditions (20°C ambient, 15°C inlet, 55°C set point). Actual times vary with ambient temperature and inlet water temperature.
Key Features
- ✓R290 (propane) refrigerant — natural refrigerant with a GWP of just 3 and zero ODP; fully F-Gas regulation compliant and future-proofed against HFC phase-outs
- ✓All-in-one design — compressor, microchannel heat exchanger, fan, and tank all in one compact unit; no separate outdoor unit, no refrigerant pipework between units, significantly simpler and faster to install than split-unit heat pumps
- ✓A+ Energy Efficiency rating under ErP Directive — up to 4× cheaper to run than a direct electric immersion heater
- ✓Max water temperature 75°C — high enough to meet UK Legionella control requirements; thermal disinfection cycle can be set from the control panel
- ✓Backup 2 kW electric immersion heater — integrated auxiliary element maintains hot water availability during extreme cold or periods of high demand; ensures DHW supply even when heat pump performance is reduced
- ✓WiFi smart control — compatible with the Becker & Wolf app (iOS & Android); monitor and adjust water temperature, operating mode, schedules, and energy usage remotely
- ✓Multiple operating modes — Heat Pump Only (most efficient), Auto (intelligently switches between modes), Boost (electric only, maximum recovery speed), Holiday mode, Timer schedules
- ✓Magnesium anode protection — extends inner tank life by preventing corrosion through sacrificial anode action; replaces standard corrosion protection additives
- ✓Vertical top discharge — hot exhaust air exits via the top; suitable for indoor installation in utility rooms, loft spaces, garages, or plant rooms. Air duct connection available on floor-standing models (150mm diameter) for through-wall ducting
- ✓Working temperature range –7°C to +43°C — operates year-round in UK conditions; auxiliary electric heater automatically activates if ambient temperature drops below the heat pump's effective range
- ✓IPX1 weather protection — suitable for installation in damp environments including garages and service areas
- ✓Becker & Wolf App — available on Apple App Store and Google Play; remote access for customers and installers including diagnostics and fault alerts
- ✓Includes G3 kit and potable expansion vessel — G3 safety group (pressure reducing valve, expansion valve, check valve, pressure gauge, tundish) and compatible potable expansion vessel included; ready for direct mains connection
- ✓Top inlet / top outlet water connections — both cold inlet and hot outlet connections at the top of the unit, ideal for wall installation where plumbing runs are concealed
- ✓Compact dimensions: Φ468 × 1,222 mm — 468mm diameter circular footprint and 1,222mm tall; fits in standard airing cupboard or utility room wall space
- ✓48 kg net weight — manageable with two installers; no heavy lifting equipment required
- ✓Rated hot water production: 20 L/h (at 20°C ambient, heat pump mode); backed by 2kW electric element for peak demand
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | BWHP080WM290 |
| Barcode / EAN | 5061085070048 |
| Tank Capacity | 80 litres |
| Refrigerant | R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class | A+ (ErP) |
| Energy Efficiency nWh | 118.3% |
| COP (EN16147 test conditions) | 2.787 |
| COP (peak, favourable conditions) | Up to 4.32 |
| Tapping Cycle (ErP) | M (medium) |
| Rated Heating Capacity | 0.95 kW |
| Rated Hot Water Production | 20 L/h (at 20°C ambient) |
| Aux. Electric Heater | 2 kW |
| Default Water Temperature | 55°C (adjustable up to 75°C) |
| Working Ambient Range | –7°C to +43°C |
| Rated Power Input (HP mode) | 220 W |
| Rated Current Input | 0.98 A |
| Max Power Input (Boost mode) | 2,300 W (max, electric element) |
| Max Current Input | 10.2 A |
| Power Supply | 220–240 V / 1-phase / 50 Hz |
| Air Flow Rate | 450 m³/h |
| Air Discharge Direction | Vertical (upward) |
| Air Duct Connection | None (no duct — open room installation) |
| Noise Level | 48 dB(A) |
| IP Rating | IPX1 |
| Water Pipe Connections | DN15 (½") |
| Max Water Pressure | 0.8 MPa (8 bar) tank working pressure |
| Max Allowable System Pressure | 3.0 MPa |
| Unpacked Dimensions (Ø × H) | Φ468 mm × 1,222 mm |
| Packed Dimensions (L×W×H) | 580 × 580 × 1,245 mm |
| Net Weight | 48 kg |
| Gross Weight | 53 kg |
| CO₂ Equivalent (R290 charge) | 0.00045 t CO₂e |
What's Included
- ✓BWHP080WM290 80L wall-mounted heat pump water heater unit
- ✓G3 safety group kit (pressure reducing valve, expansion relief valve, check valve, pressure gauge, tundish)
- ✓Potable expansion vessel (sized for this unit)
- ✓Magnesium anode (fitted inside tank)
- ✓Installation and user manual
- ✓Becker & Wolf WiFi module (for app connectivity)
Installation Notes
- ✓Installation must be carried out by a qualified heating engineer. Refrigerant handling (if required) requires F-Gas / REFCOM certification
- ✓Minimum room size: ~5–8 m³ recommended for open-room installation without ducting; larger is better as the unit extracts heat from the surrounding air
- ✓No outdoor unit required — entirely indoor installation
- ✓Wall fixing: Secure to masonry or structural wall capable of supporting 53 kg gross weight; use appropriate fixings and a minimum of 2 fixing points at the manufacturer's specified bracket positions
- ✓Electrical connection: Standard 13A UK socket or fused spur (max 10.2A); 2.3kW max — single-phase 230V. A dedicated circuit with RCD protection is recommended
- ✓Water connections: DN15 (½") inlet and outlet at the top of the unit. The G3 kit must be installed on the cold water supply. The potable expansion vessel must be fitted on the cold supply side
- ✓Condensate drain: The unit will produce condensate; a suitable condensate drain point is required nearby
Frequently Asked Questions
Can this heat pump replace my gas boiler for hot water?
Yes — the Becker & Wolf all-in-one heat pump is designed as a direct replacement for gas water heaters and combi boiler DHW. It provides mains-pressure hot water independently of any boiler. You will need a suitable indoor space (minimum ~5–8m³ for wall-mounted, ~10–15m³ for floor-standing) with sufficient ventilation or air duct connection. An F-Gas or REFCOM qualified engineer must handle the refrigerant if the unit ever needs regassing.
What ambient temperature does the heat pump work at?
The heat pump operates in ambient air temperatures from –7°C to +43°C. Below about 5°C, COP reduces; the integrated 2 kW electric backup heater automatically activates at low temperatures to maintain the set water temperature. In practice, most UK installations operate efficiently throughout the year.
Does it need an outdoor unit?
No — this is a self-contained all-in-one unit. The heat pump compressor, heat exchanger, fan, and storage tank are all integrated in one unit. There is no separate outdoor unit and no refrigerant pipework to run between two units. The unit draws heat from the room air and can be installed entirely indoors, optionally ducted to draw or exhaust air through an external wall.
What room size does this need for installation?
As a rough guide: wall-mounted 80L/100L units need a minimum space of approximately 5–8m³; floor-standing 200–300L units need approximately 10–20m³. The heat pump extracts heat from the surrounding air — too small a space will cause the room to cool too quickly, reducing efficiency. Alternatively, connect a 150mm air duct (floor-standing models) to draw from or exhaust to outside air, allowing installation in smaller spaces.
Is this MCS certified?
The Becker & Wolf heat pump water heaters are A+ ErP-rated and CE certified. Please check with Quality Heating / your installer regarding current MCS certification status for eligibility for any available UK government grants or incentive schemes.
What is the Legionella control cycle?
The Becker & Wolf units can reach 75°C, sufficient for thermal disinfection of the tank to control Legionella bacteria. A periodic disinfection cycle can be scheduled via the Becker & Wolf app or the control panel. UK guidance recommends domestic hot water systems store water at 60°C or above to control Legionella risk.
Can it be connected to solar PV?
Yes — the unit can be timed or configured to run primarily during daylight hours when solar PV generation is highest, reducing running costs further. Integration with solar divert controllers (such as Eddi, Zappi, or similar) is possible by scheduling the boost/immersion mode via the app or an external timer.
What size household is the 80L suited to?
The 80L BWHP080WM290 is designed for 1–2 person households, single-occupancy apartments, studio flats, and small offices. For a family of 3 or more, consider the 100L, 200L, 250L, or 300L models for adequate hot water capacity.
What is the difference between the 80L and 100L wall-mounted models?
Both models share the same wall-mounted R290 all-in-one design and similar dimensions. The 100L (BWHP100WM290) offers 25% more tank capacity (suitable for 2–3 persons), a higher rated heating capacity, and a higher rated hot water production rate, making recovery faster for higher demand households.
