Heat pump Size Typical home type You pay (after BUS Grant) 5 kW Small Smaller homes and flats from £4,038 8 kW Medium Typical 2–3 bedroom homes from £5,133 11 kW Large Larger family homes from £5,493 13 kW X-Large Large homes with high demand from £5,817 Important: The heat pump sizes shown above are illustrative of secured group-buy prices. Final system size, configuration, and price will be confirmed following your technical home survey and design review. Prices vary depending on hot water cylinder size and number of radiators included. View the full group-buy price list for all system configurations: Full Heat Pump Configuration Price List 5 kW — Small Typically suitable for smaller homes and flats with lower overall heating demand. Compact, efficient systems commonly installed in smaller properties. 8 kW — Medium Typically suitable for most 2–3 bedroom homes, including terraced and semi-detached houses. This is the most commonly installed heat pump size across Group Buy North London. 11 kW — Large Typically suitable for larger family homes with greater space heating and hot water demand. Provides additional capacity whilst maintaining efficient operation. 13 kW — X-Large Typically suitable for large homes with higher overall heating and hot water demand. Designed to comfortably meet the needs of larger households. Note: Final heat pump size is always confirmed following your home survey and heat loss calculations.

Every Group Buy North London heat pump package includes: Complete System Package Baxi HP40 air source heat pump (5–13 kW, sized to your home) UK Cylinders heat pump-compatible hot water cylinder (150–300 L) Replacement radiators (5–8 depending on system configuration) Smart heating controls Room-by-room heat loss assessment and system design MCS-compliant installation and commissioning System volumiser or buffer tank for optimised performance Handover pack, certificates, and warranties Warranties & Aftercare Your installation is protected by comprehensive warranty coverage: Coverage Duration Heat pump manufacturer warranty 7 years Hot water cylinder manufacturer warranty 25 years Cylinder parts warranty 2 years Installation workmanship warranty 2 years Annual service reminders — Your Installer can set up service reminders to help you maintain your system and protect your warranty coverage.

Monobloc design — Single outdoor unit with no refrigerant pipework inside your home, simplifying installation and reducing maintenance requirements. DC inverter technology — Automatically adjusts output to match your home's heating demand, improving efficiency and reducing energy consumption. Cold climate operation — Engineered to operate reliably down to −25°C ambient temperature, ensuring consistent heating throughout British winters. Low GWP refrigerant — R32 refrigerant has a significantly lower global warming potential than older alternatives. Compact footprint — Single-fan design saves space compared to twin-fan units, making installation suitable for a wider range of properties. Technical Specification & Sizes Specification 5 kW (Small) 8 kW (Medium) 11 kW (Large) 13 kW (X-Large) Heat output (at A0°C/W55°C) 5.4 kW 8.2 kW 10.8 kW 12.8 kW Efficiency (SCOP at 55°C) 3.4 3.4 3.3 3.3 Sound power level 58 dB(A) 60 dB(A) 65 dB(A) 68 dB(A) Dimensions (H × W × D) 700 × 1309 × 400 mm 850 × 1388 × 448 mm 850 × 1388 × 448 mm 850 × 1388 × 448 mm Unit weight 86 kg 105 kg 129 kg 129 kg Refrigerant R32 R32 R32 R32 Operating range Down to −25°C Down to −25°C Down to −25°C Down to −25°C Maximum flow temperature Up to 65°C Up to 65°C Up to 65°C Up to 65°C Scroll to the right if you are viewing on a small screen

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Your package includes a British-manufactured heat pump cylinder from the UK Cylinders range. These specialist cylinders feature an oversized primary coil for efficient heat transfer from your heat pump, ensuring rapid hot water recovery. Capacity Typical suitability 150 L 1–2 bedroom homes, smaller households 200 L 2–3 bedroom homes, average households 250 L 3–4 bedroom homes, larger households 300 L 4+ bedroom homes, high hot water demand The right cylinder size for your household will be confirmed following your home survey. Key features: Cylinder Specifications 545 mm diameter (all sizes) Duplex stainless steel construction 50 mm CFC-free insulation 3 kW backup immersion heater included Market-leading high-efficiency primary coil Data Sheet - UK Cylinders Heat Pump Unvented Cylinder.pdf Cylinder Warranty & Installation Warranty Coverage Cylinder warranty: 25 years (manufacturer) plus 2-year parts warranty If you don't currently have a hot water cylinder (e.g. you have a combi boiler), your installer will work with you to identify a suitable location. Full technical specifications are provided in Appendix D.

The standard package includes 5–8 radiators depending on your system size. Additional items can be added at fixed prices if required following your home survey. Additional Radiators If your home requires more radiators than included in your package, these can be added at a fixed price. Price: £200 per radiator Includes supply, installation, and Thermostatic Radiator Valve (TRV). Pipework Trunking Premium external trunking to conceal and protect heat pump pipework. Provides a neat, professional finish and protects pipes from weather damage. Price: £250 Converting from a Combi Boiler If you currently have a combi boiler and no hot water cylinder, additional work is required to install a cylinder in a new location, connect heating and water pipework, and wire the immersion backup heater. Price: £600 Note: All additional costs will be confirmed in your final quotation following the home survey. There is no obligation to proceed until you have reviewed and accepted your complete quote.

Savings (Group Buy Discount) compare the group buy price against typical market installation prices after the £7,500 Boiler Upgrade Scheme (BUS) grant has been applied to both. Small 5 kW Heat Pump 150 L - 300 L Cylinder - 5 Radiators Included - Suitable for Smaller Homes Cylinder Radiators Market Price Market (after BUS) Group-Buy Price You Pay (after BUS) Saving (Group Buy Discount) 150 L 5 £13,050 £5,550 £11,538 £4,038 £1,512 (27.2%) 200 L 5 £13,250 £5,750 £12,033 £4,533 £1,217 (21.2%) 250 L 5 £13,550 £6,050 £12,260 £4,760 £1,290 (21.3%) 300 L 5 £13,800 £6,300 £12,503 £5,003 £1,297 (20.6%) Medium 8 kW Heat Pump 150 L - 300 L Cylinder - 6 Radiators Included - Most common choice Cylinder Radiators Market Price Market (after BUS) Group-Buy Price You Pay (after BUS) Saving (Group Buy Discount) 150 L 6 £14,800 £7,300 £12,633 £5,133 £2,167 (29.7%) 200 L 6 £15,000 £7,500 £12,887 £5,387 £2,113 (28.2%) 250 L 6 £15,300 £7,800 £13,113 £5,613 £2,187 (28.0%) 300 L 6 £15,550 £8,050 £13,356 £5,856 £2,194 (27.3%) Large 11 kW Heat Pump 150 L - 300 L Cylinder - 7 Radiators Included - Larger homes Cylinder Radiators Market Price Market (after BUS) Group-Buy Price You Pay (after BUS) Saving (Group Buy Discount) 150 L 7 £16,750 £9,250 £12,993 £5,493 £3,757 (40.6%) 200 L 7 £16,950 £9,450 £13,240 £5,740 £3,710 (39.3%) 250 L 7 £17,250 £9,750 £13,505 £6,005 £3,745 (38.4%) 300 L 7 £17,500 £10,000 £13,736 £6,236 £3,764 (37.6%) Extra Large 13 kW Heat Pump 150 L - 300 L Cylinder - 8 Radiators Included - Large detached homes Cylinder Radiators Market Price Market (after BUS) Group-Buy Price You Pay (after BUS) Saving (Group Buy Discount) 150 L 8 £18,600 £11,100 £13,317 £5,817 £5,283 (47.6%) 200 L 8 £18,800 £11,300 £13,566 £6,066 £5,234 (46.3%) 250 L 8 £19,100 £11,600 £13,792 £6,292 £5,308 (45.8%) 300 L 8 £19,350 £11,850 £14,031 £6,531 £5,319 (44.9%) Heat Pump Sizes Explained 5 kW — Small Typically suitable for smaller homes and flats with lower overall heating demand. Compact, efficient systems commonly installed in smaller properties. 8 kW — Medium Typically suitable for most 2–3 bedroom homes, including terraced and semi-detached houses. This is the most commonly installed heat pump size. 11 kW — Large Typically suitable for larger family homes with greater space heating and hot water demand. Provides additional capacity whilst maintaining efficient operation. 13 kW — X-Large Typically suitable for large homes with higher overall heating and hot water demand. Designed to comfortably meet the needs of larger households. Note: Final heat pump size is always confirmed following your home survey and heat loss calculations. Book Home Survey All prices include 0% VAT for domestic customers Commercial customers are subject to 20% VAT Additional radiators can be added at £200 each