Becker & Wolf 300L Floor Standing Heat Pump Water Heater R290 – BWHP300R290 – A+ Rated – WiFi – G3 Kit – Largest Domestic Model
300 Litres Floor Standing R290 Refrigerant A+ Energy Rating Largest Domestic Model WiFi Smart Control G3 Kit Included
The Becker & Wolf BWHP300R290 is the flagship domestic model in the Becker & Wolf all-in-one heat pump water heater range — a 300-litre floor-standing unit for households of 5–6 people or high-demand properties. With 300 litres of hot water storage, it provides the largest available reservoir in the Becker & Wolf domestic lineup, ensuring that even high simultaneous demand — multiple showers, a bath, and kitchen use — is met without running cold. Using R290 (propane) refrigerant (GWP 3), it achieves a strong ErP A+ rating and delivers mains-pressure hot water up to 75°C. The integrated 150mm air duct collar allows the unit to be installed in a utility room or plant room with ducting to outside air, and the 2 kW backup electric heater guarantees hot water even during the coldest nights. Supplied with a complete G3 safety kit and potable expansion vessel.
ℹ️ Capacity: 300 L · Installation: Floor Standing · Suitable for: 5–6 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 300L of cold water from 15°C to 55°C at the rated hot water production of 90 L/h takes approximately 200 minutes (~3.3 hours) under standard conditions (20°C ambient air). In Boost / Electric Backup Mode (2 kW immersion), recovery takes approximately 418 minutes (~7.0 hours) independent of ambient temperature. Hot water production rate for 300L estimated at ~90 L/h based on ErP XL cycle and scaled heating capacity; verify against official datasheet. In practice, the large 300L reserve means the unit can meet high peak demand without the heat pump needing to fully reheat from cold.
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
- ✓150mm air duct connection — floor-standing models include a 150mm diameter duct collar at the top for connecting through-wall or ceiling ducting to exhaust warm/humid air to the outside — particularly useful in sealed utility rooms
- ✓DN20 water connections — larger pipe connections suitable for higher flow rates matching the larger tank capacity
- ✓300 litre tank — the largest domestic Becker & Wolf model — sufficient stored capacity for 5–6 persons; substantially reduces the frequency of full tank reheating cycles, maximising heat pump efficiency and compressor longevity
- ✓Highest heating capacity in the floor-standing range — provides the fastest recovery of any domestic Becker & Wolf model
- ✓ErP XL tapping cycle — the most demanding ErP test profile, reflecting the unit's suitability for large families and higher daily hot water draw patterns
- ✓Ideal for properties converting from large gas boiler DHW cylinders — 300L matches or exceeds the stored capacity of most traditional vented and unvented hot water cylinders
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | BWHP300R290 |
| Barcode / EAN | 5061085070031 |
| Tank Capacity | 300 litres |
| Refrigerant | R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class | A+ (ErP) |
| Tapping Cycle (ErP) | XL (extra large) |
| Aux. Electric Heater | 2 kW |
| Default Water Temperature | 55°C (adjustable up to 75°C) |
| Working Ambient Range | –7°C to +43°C |
| Power Supply | 220–240 V / 1-phase / 50 Hz |
| Air Flow Rate | 450 m³/h |
| Air Discharge Direction | Vertical (upward) |
| Air Duct Diameter | 150 mm (duct collar fitted as standard) |
| Noise Level | 48 dB(A) |
| IP Rating | IPX1 |
| Water Pipe Connections | DN20 (¾") |
| Installation Type | Floor Standing |
| Suitable for | 5–6 persons |
⚠️ Full technical specifications (rated heating capacity kW, exact COP, dimensions, net/gross weight) for the BWHP300R290 are detailed in the manufacturer's datasheet at beckerwolf.com. As the flagship domestic model the 300L has the largest dimensions in the range; ensure adequate space (min Φ~620mm footprint, ~1.8–1.9m height) is available before ordering.
What's Included
- ✓BWHP300R290 300L floor-standing heat pump water heater unit
- ✓G3 safety group kit (pressure reducing valve, expansion relief valve, check valve, pressure gauge, tundish)
- ✓Potable expansion vessel
- ✓Magnesium anode
- ✓Installation and user manual
- ✓Becker & Wolf WiFi module
- ✓150mm air duct collar
Installation Notes
- ✓Installation by a qualified heating engineer is mandatory. F-Gas / REFCOM certification required for refrigerant
- ✓Floor loading: At full capacity, the 300L tank + unit weight is considerable — ensure the floor can support the combined load. Consult a structural engineer if uncertain about floor loading capacity
- ✓Minimum room size: ~15–20 m³ for open-room installation without ducting; smaller rooms should use the 150mm duct to outside
- ✓150mm air duct: Connect through-wall to draw from or exhaust to outside; reduces the impact on room temperature and allows installation in smaller spaces
- ✓Electrical: Dedicated single-phase 230V circuit; 16A MCB with RCD protection; ensure circuit cabling is rated for full boost current
- ✓Water connections: DN20 (¾"); G3 safety group on cold water supply; potable expansion vessel on cold supply side
- ✓Condensate drain: Required — plan adequate drainage
- ✓Levelling: Critical for correct refrigerant circuit operation; use adjustable feet if available
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.
Is the 300L the right size for my property?
The BWHP300R290 is designed for 5–6 person households or properties with high peak hot water demand. As a guide: at approximately 50L per person per day, 300L provides roughly one day's hot water storage at full capacity. If you regularly run out of hot water in the morning peak with a smaller cylinder, or have multiple bathrooms in simultaneous use, the 300L is the right choice. For smaller households, the 200L or 250L models are likely sufficient and more economical.
How does the 300L compare to a traditional 300L unvented cylinder with an immersion heater?
A traditional 300L direct cylinder with a 3kW immersion heater uses 3kW to produce 3kW of heat (COP = 1). The BWHP300R290 uses approximately 700–900W (in heat pump mode at 20°C ambient) to produce the equivalent of ~2.8kW of heat — effectively 3–4× cheaper to run per kWh of hot water produced. The trade-off is longer recovery time in heat pump mode vs the immersion's brute-force speed; the 2kW backup element is available for urgent recovery when needed.
Can two units be installed for very high demand?
Yes — if a single 300L unit is insufficient (for example, in an HMO or small holiday let with 7+ occupants), two Becker & Wolf units can be installed on a shared hot water circuit with appropriate anti-scalding and balancing measures. Contact Becker & Wolf's technical team or Quality Heating for system design advice.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Becker & Wolf 300L Floor Standing Heat Pump Water Heater R290 – BWHP300R290 – A+ Rated – WiFi – G3 Kit – Largest Domestic Model
Becker & Wolf 300L Floor Standing Heat Pump Water Heater R290 – BWHP300R290 – A+ Rated – WiFi – G3 Kit – Largest Domestic Model
300 Litres Floor Standing R290 Refrigerant A+ Energy Rating Largest Domestic Model WiFi Smart Control G3 Kit Included
The Becker & Wolf BWHP300R290 is the flagship domestic model in the Becker & Wolf all-in-one heat pump water heater range — a 300-litre floor-standing unit for households of 5–6 people or high-demand properties. With 300 litres of hot water storage, it provides the largest available reservoir in the Becker & Wolf domestic lineup, ensuring that even high simultaneous demand — multiple showers, a bath, and kitchen use — is met without running cold. Using R290 (propane) refrigerant (GWP 3), it achieves a strong ErP A+ rating and delivers mains-pressure hot water up to 75°C. The integrated 150mm air duct collar allows the unit to be installed in a utility room or plant room with ducting to outside air, and the 2 kW backup electric heater guarantees hot water even during the coldest nights. Supplied with a complete G3 safety kit and potable expansion vessel.
ℹ️ Capacity: 300 L · Installation: Floor Standing · Suitable for: 5–6 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 300L of cold water from 15°C to 55°C at the rated hot water production of 90 L/h takes approximately 200 minutes (~3.3 hours) under standard conditions (20°C ambient air). In Boost / Electric Backup Mode (2 kW immersion), recovery takes approximately 418 minutes (~7.0 hours) independent of ambient temperature. Hot water production rate for 300L estimated at ~90 L/h based on ErP XL cycle and scaled heating capacity; verify against official datasheet. In practice, the large 300L reserve means the unit can meet high peak demand without the heat pump needing to fully reheat from cold.
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
- ✓150mm air duct connection — floor-standing models include a 150mm diameter duct collar at the top for connecting through-wall or ceiling ducting to exhaust warm/humid air to the outside — particularly useful in sealed utility rooms
- ✓DN20 water connections — larger pipe connections suitable for higher flow rates matching the larger tank capacity
- ✓300 litre tank — the largest domestic Becker & Wolf model — sufficient stored capacity for 5–6 persons; substantially reduces the frequency of full tank reheating cycles, maximising heat pump efficiency and compressor longevity
- ✓Highest heating capacity in the floor-standing range — provides the fastest recovery of any domestic Becker & Wolf model
- ✓ErP XL tapping cycle — the most demanding ErP test profile, reflecting the unit's suitability for large families and higher daily hot water draw patterns
- ✓Ideal for properties converting from large gas boiler DHW cylinders — 300L matches or exceeds the stored capacity of most traditional vented and unvented hot water cylinders
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | BWHP300R290 |
| Barcode / EAN | 5061085070031 |
| Tank Capacity | 300 litres |
| Refrigerant | R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class | A+ (ErP) |
| Tapping Cycle (ErP) | XL (extra large) |
| Aux. Electric Heater | 2 kW |
| Default Water Temperature | 55°C (adjustable up to 75°C) |
| Working Ambient Range | –7°C to +43°C |
| Power Supply | 220–240 V / 1-phase / 50 Hz |
| Air Flow Rate | 450 m³/h |
| Air Discharge Direction | Vertical (upward) |
| Air Duct Diameter | 150 mm (duct collar fitted as standard) |
| Noise Level | 48 dB(A) |
| IP Rating | IPX1 |
| Water Pipe Connections | DN20 (¾") |
| Installation Type | Floor Standing |
| Suitable for | 5–6 persons |
⚠️ Full technical specifications (rated heating capacity kW, exact COP, dimensions, net/gross weight) for the BWHP300R290 are detailed in the manufacturer's datasheet at beckerwolf.com. As the flagship domestic model the 300L has the largest dimensions in the range; ensure adequate space (min Φ~620mm footprint, ~1.8–1.9m height) is available before ordering.
What's Included
- ✓BWHP300R290 300L floor-standing heat pump water heater unit
- ✓G3 safety group kit (pressure reducing valve, expansion relief valve, check valve, pressure gauge, tundish)
- ✓Potable expansion vessel
- ✓Magnesium anode
- ✓Installation and user manual
- ✓Becker & Wolf WiFi module
- ✓150mm air duct collar
Installation Notes
- ✓Installation by a qualified heating engineer is mandatory. F-Gas / REFCOM certification required for refrigerant
- ✓Floor loading: At full capacity, the 300L tank + unit weight is considerable — ensure the floor can support the combined load. Consult a structural engineer if uncertain about floor loading capacity
- ✓Minimum room size: ~15–20 m³ for open-room installation without ducting; smaller rooms should use the 150mm duct to outside
- ✓150mm air duct: Connect through-wall to draw from or exhaust to outside; reduces the impact on room temperature and allows installation in smaller spaces
- ✓Electrical: Dedicated single-phase 230V circuit; 16A MCB with RCD protection; ensure circuit cabling is rated for full boost current
- ✓Water connections: DN20 (¾"); G3 safety group on cold water supply; potable expansion vessel on cold supply side
- ✓Condensate drain: Required — plan adequate drainage
- ✓Levelling: Critical for correct refrigerant circuit operation; use adjustable feet if available
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.
Is the 300L the right size for my property?
The BWHP300R290 is designed for 5–6 person households or properties with high peak hot water demand. As a guide: at approximately 50L per person per day, 300L provides roughly one day's hot water storage at full capacity. If you regularly run out of hot water in the morning peak with a smaller cylinder, or have multiple bathrooms in simultaneous use, the 300L is the right choice. For smaller households, the 200L or 250L models are likely sufficient and more economical.
How does the 300L compare to a traditional 300L unvented cylinder with an immersion heater?
A traditional 300L direct cylinder with a 3kW immersion heater uses 3kW to produce 3kW of heat (COP = 1). The BWHP300R290 uses approximately 700–900W (in heat pump mode at 20°C ambient) to produce the equivalent of ~2.8kW of heat — effectively 3–4× cheaper to run per kWh of hot water produced. The trade-off is longer recovery time in heat pump mode vs the immersion's brute-force speed; the 2kW backup element is available for urgent recovery when needed.
Can two units be installed for very high demand?
Yes — if a single 300L unit is insufficient (for example, in an HMO or small holiday let with 7+ occupants), two Becker & Wolf units can be installed on a shared hot water circuit with appropriate anti-scalding and balancing measures. Contact Becker & Wolf's technical team or Quality Heating for system design advice.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
300 Litres Floor Standing R290 Refrigerant A+ Energy Rating Largest Domestic Model WiFi Smart Control G3 Kit Included
The Becker & Wolf BWHP300R290 is the flagship domestic model in the Becker & Wolf all-in-one heat pump water heater range — a 300-litre floor-standing unit for households of 5–6 people or high-demand properties. With 300 litres of hot water storage, it provides the largest available reservoir in the Becker & Wolf domestic lineup, ensuring that even high simultaneous demand — multiple showers, a bath, and kitchen use — is met without running cold. Using R290 (propane) refrigerant (GWP 3), it achieves a strong ErP A+ rating and delivers mains-pressure hot water up to 75°C. The integrated 150mm air duct collar allows the unit to be installed in a utility room or plant room with ducting to outside air, and the 2 kW backup electric heater guarantees hot water even during the coldest nights. Supplied with a complete G3 safety kit and potable expansion vessel.
ℹ️ Capacity: 300 L · Installation: Floor Standing · Suitable for: 5–6 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 300L of cold water from 15°C to 55°C at the rated hot water production of 90 L/h takes approximately 200 minutes (~3.3 hours) under standard conditions (20°C ambient air). In Boost / Electric Backup Mode (2 kW immersion), recovery takes approximately 418 minutes (~7.0 hours) independent of ambient temperature. Hot water production rate for 300L estimated at ~90 L/h based on ErP XL cycle and scaled heating capacity; verify against official datasheet. In practice, the large 300L reserve means the unit can meet high peak demand without the heat pump needing to fully reheat from cold.
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
- ✓150mm air duct connection — floor-standing models include a 150mm diameter duct collar at the top for connecting through-wall or ceiling ducting to exhaust warm/humid air to the outside — particularly useful in sealed utility rooms
- ✓DN20 water connections — larger pipe connections suitable for higher flow rates matching the larger tank capacity
- ✓300 litre tank — the largest domestic Becker & Wolf model — sufficient stored capacity for 5–6 persons; substantially reduces the frequency of full tank reheating cycles, maximising heat pump efficiency and compressor longevity
- ✓Highest heating capacity in the floor-standing range — provides the fastest recovery of any domestic Becker & Wolf model
- ✓ErP XL tapping cycle — the most demanding ErP test profile, reflecting the unit's suitability for large families and higher daily hot water draw patterns
- ✓Ideal for properties converting from large gas boiler DHW cylinders — 300L matches or exceeds the stored capacity of most traditional vented and unvented hot water cylinders
Technical Specifications
| Specification | Value |
|---|---|
| Model Number | BWHP300R290 |
| Barcode / EAN | 5061085070031 |
| Tank Capacity | 300 litres |
| Refrigerant | R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class | A+ (ErP) |
| Tapping Cycle (ErP) | XL (extra large) |
| Aux. Electric Heater | 2 kW |
| Default Water Temperature | 55°C (adjustable up to 75°C) |
| Working Ambient Range | –7°C to +43°C |
| Power Supply | 220–240 V / 1-phase / 50 Hz |
| Air Flow Rate | 450 m³/h |
| Air Discharge Direction | Vertical (upward) |
| Air Duct Diameter | 150 mm (duct collar fitted as standard) |
| Noise Level | 48 dB(A) |
| IP Rating | IPX1 |
| Water Pipe Connections | DN20 (¾") |
| Installation Type | Floor Standing |
| Suitable for | 5–6 persons |
⚠️ Full technical specifications (rated heating capacity kW, exact COP, dimensions, net/gross weight) for the BWHP300R290 are detailed in the manufacturer's datasheet at beckerwolf.com. As the flagship domestic model the 300L has the largest dimensions in the range; ensure adequate space (min Φ~620mm footprint, ~1.8–1.9m height) is available before ordering.
What's Included
- ✓BWHP300R290 300L floor-standing heat pump water heater unit
- ✓G3 safety group kit (pressure reducing valve, expansion relief valve, check valve, pressure gauge, tundish)
- ✓Potable expansion vessel
- ✓Magnesium anode
- ✓Installation and user manual
- ✓Becker & Wolf WiFi module
- ✓150mm air duct collar
Installation Notes
- ✓Installation by a qualified heating engineer is mandatory. F-Gas / REFCOM certification required for refrigerant
- ✓Floor loading: At full capacity, the 300L tank + unit weight is considerable — ensure the floor can support the combined load. Consult a structural engineer if uncertain about floor loading capacity
- ✓Minimum room size: ~15–20 m³ for open-room installation without ducting; smaller rooms should use the 150mm duct to outside
- ✓150mm air duct: Connect through-wall to draw from or exhaust to outside; reduces the impact on room temperature and allows installation in smaller spaces
- ✓Electrical: Dedicated single-phase 230V circuit; 16A MCB with RCD protection; ensure circuit cabling is rated for full boost current
- ✓Water connections: DN20 (¾"); G3 safety group on cold water supply; potable expansion vessel on cold supply side
- ✓Condensate drain: Required — plan adequate drainage
- ✓Levelling: Critical for correct refrigerant circuit operation; use adjustable feet if available
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.
Is the 300L the right size for my property?
The BWHP300R290 is designed for 5–6 person households or properties with high peak hot water demand. As a guide: at approximately 50L per person per day, 300L provides roughly one day's hot water storage at full capacity. If you regularly run out of hot water in the morning peak with a smaller cylinder, or have multiple bathrooms in simultaneous use, the 300L is the right choice. For smaller households, the 200L or 250L models are likely sufficient and more economical.
How does the 300L compare to a traditional 300L unvented cylinder with an immersion heater?
A traditional 300L direct cylinder with a 3kW immersion heater uses 3kW to produce 3kW of heat (COP = 1). The BWHP300R290 uses approximately 700–900W (in heat pump mode at 20°C ambient) to produce the equivalent of ~2.8kW of heat — effectively 3–4× cheaper to run per kWh of hot water produced. The trade-off is longer recovery time in heat pump mode vs the immersion's brute-force speed; the 2kW backup element is available for urgent recovery when needed.
Can two units be installed for very high demand?
Yes — if a single 300L unit is insufficient (for example, in an HMO or small holiday let with 7+ occupants), two Becker & Wolf units can be installed on a shared hot water circuit with appropriate anti-scalding and balancing measures. Contact Becker & Wolf's technical team or Quality Heating for system design advice.
