250 Litres Floor Standing R290 Refrigerant A+ Energy Rating WiFi Smart Control G3 Kit Included Becker & Wolf
The Becker & Wolf BWHP250R290 is a 250-litre all-in-one floor-standing heat pump water heater — the mid-range of the floor-standing R290 family, designed for households of 4–5 people with higher-than-average hot water demand. Using R290 (propane) refrigerant with a GWP of just 3, it achieves an A+ ErP rating and strong COP performance across the UK's ambient temperature range. The 250L tank provides a 25% larger reserve than the 200L, extending the available hot water window during morning peak demand without requiring the heat pump to run as frequently. A 2 kW backup electric heater ensures availability during cold weather or high-demand periods, and a 150mm air duct collar allows installation in smaller indoor spaces with through-wall air ducting. Supplied complete with G3 safety kit and potable expansion vessel.
ℹ️ Capacity: 250 L · Installation: Floor Standing · Suitable for: 4–5 persons
ℹ️ Estimated Recovery Time (Heat Pump Mode): Heating 250L of cold water from 15°C to 55°C at the rated hot water production of 75 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 348 minutes (~5.8 hours) independent of ambient temperature. Hot water production rate for 250L estimated at ~75 L/h based on heating capacity scaling from the 200L model; verify against the manufacturer's final datasheet.
Key Features
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✓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
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✓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
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✓A+ Energy Efficiency rating under ErP Directive — up to 4× cheaper to run than a direct electric immersion heater
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✓Max water temperature 75°C — high enough to meet UK Legionella control requirements; thermal disinfection cycle can be set from the control panel
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✓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
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✓WiFi smart control — compatible with the Becker & Wolf app (iOS & Android); monitor and adjust water temperature, operating mode, schedules, and energy usage remotely
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✓Multiple operating modes — Heat Pump Only (most efficient), Auto (intelligently switches between modes), Boost (electric only, maximum recovery speed), Holiday mode, Timer schedules
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✓Magnesium anode protection — extends inner tank life by preventing corrosion through sacrificial anode action; replaces standard corrosion protection additives
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✓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
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✓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
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✓IPX1 weather protection — suitable for installation in damp environments including garages and service areas
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✓Becker & Wolf App — available on Apple App Store and Google Play; remote access for customers and installers including diagnostics and fault alerts
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✓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
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✓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
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✓DN20 water connections — larger pipe connections suitable for higher flow rates matching the larger tank capacity
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✓250 litre tank — the largest wall-less floor-standing volume in the Becker & Wolf domestic range; 25% more stored hot water than the 200L for families with higher peak demand
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✓Higher heating capacity than 200L — scaled compressor and heat exchanger deliver faster recovery time per litre compared to the entry 200L model
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✓ErP XL tapping cycle — rated to the extra-large hot water draw profile per EN16147, consistent with larger family use patterns
Technical Specifications
| Specification |
Value |
| Model Number |
BWHP250R290 |
| Tank Capacity |
250 litres |
| Refrigerant |
R290 (propane) — GWP 3, ODP 0 |
| Energy Efficiency Class |
A+ (ErP) |
| 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 |
4–5 persons |
⚠️ Full technical specifications for the BWHP250R290 (rated heating capacity, COP, exact dimensions, weight, power input) are available in the manufacturer's datasheet from beckerwolf.com. The 250L and 300L share very similar dimensions and specifications to each other; key differences are tank volume and rated performance. Contact Quality Heating for the complete datasheet.
What's Included
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✓BWHP250R290 250L floor-standing heat pump water heater unit
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✓G3 safety group kit
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✓Potable expansion vessel
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✓Magnesium anode
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✓Installation and user manual
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✓Becker & Wolf WiFi module
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✓150mm air duct collar
Installation Notes
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✓Installation by a qualified heating engineer. F-Gas / REFCOM for refrigerant
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✓Floor space: Similar footprint to the 200L (Φ~620mm); level, firm floor; capable of supporting unit weight plus ~250kg of water when full
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✓Minimum room size: ~12–18 m³ for open-room; duct as needed for smaller spaces
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✓150mm duct collar: Can be connected to draw/exhaust through an external wall
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✓Electrical: Dedicated single-phase 230V circuit; 16A MCB with RCD
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✓Water connections: DN20 (¾"); G3 kit on cold supply; expansion vessel on cold side
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✓Condensate drain required
Frequently Asked Questions
Q
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.
Q
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.
Q
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.
Q
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.
Q
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.
Q
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.
Q
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.
Q
When should I choose the 250L over the 200L?
Choose the 250L BWHP250R290 if your household has 4–5 occupants with frequent simultaneous hot water use (e.g., two bathrooms in use during morning rush). The extra 50L buffer reduces the chance of running cold mid-shower and means the heat pump runs slightly less frequently, which can extend compressor life.
Q
How does the 250L compare to the 300L?
The 300L BWHP300R290 offers 50L more storage capacity, better suited to 5–6 person households or properties with particularly high daily hot water demand. Both units are very similar in size and share the same R290 refrigerant system; the 300L runs slightly more economically per litre of hot water due to its higher ErP rating.
