Kensa Ground Source (Shoebox & Evo) Review (2026)
Manufactured in Cornwall, UK — Britain's #1 Ground Source Heat Pump manufacturer delivering constant 5.5+ SCOP all year round.
Engineering Overview & Field Performance
Manufactured in Truro, Cornwall, Kensa is the undisputed leader in UK Ground Source Heat Pumps (GSHP). By harvesting thermal energy from subterranean ground loops or communal ambient loops, Kensa units deliver constant 5.0+ SCOP efficiency immune to winter air freezes.
🎯 Ideal Property Match:
Properties with gardens or acreage for ground loops, new-build developments, communal networked heat loops, and high-end estates.
Advantages & Potential Limitations
✓ What We Liked (Pros)
- Constant year-round ground temperature (8°C–12°C) delivers 5.45+ SCOP regardless of outdoor blizzards
- No outdoor fans or condenser boxes — 100% zero outdoor noise and zero boundary planning issues
- Underground pipework carries a 100-year infrastructure design life
- Proudly designed and manufactured in Cornwall, UK with expert ground array design teams
✕ Things to Consider (Cons)
- Upfront groundworks (trenches or vertical boreholes) result in higher initial capex than air source
- Requires adequate garden land area or access for specialized borehole drilling rigs
- Installation timescale is longer due to civil ground excavation works
Check Your Net Installed Price for the Kensa Ground Source (Shoebox & Evo) After £7,500 Grant
UK homeowners qualify for a non-repayable £7,500 voucher under the statutory Boiler Upgrade Scheme (BUS), plus 0% VAT on equipment and labour. Verify installer coverage and grant allocation in your postcode.
Compressor Modulation & System Integration
Ground source eliminates outdoor air defrost cycles entirely. Uses closed-loop slinky ground arrays or vertical boreholes with food-grade propylene glycol brine, delivering an unwavering 5.45 SCOP regardless of outdoor blizzards.
Full Technical Specifications
| Specification Feature | Manufacturer Certified Rating |
|---|---|
| Dimensions (H x W x D) | Shoebox: 560 x 600 x 560 mm / Evo: 1200 x 600 x 600 mm |
| Operating Ambient Range | Constant ground source (-5°C to +20°C ground loop) |
| Electrical Supply | Single Phase 230V 50Hz |
| Ground Array Type | Slinky trenches, vertical boreholes, or pond mats |
| Controls | Genesis touchscreen controller with live COP monitoring |
| UK Warranty | 5 to 10 Years via Kensa Accredited Network |
| Compressor Type | Hermetic Scroll Inverter with Stainless Steel Brazed Plate Exchangers |
| Modulation Turndown | 1.5 kW – 6.0 kW (Evo Series Continuous Modulation) |
| -7°C Winter Retention | 100% Constant Heat Output (Ground Temp Constant 8°C–12°C All Year) |
| Primary Hydronic Flow | 16.0 L/min Internal / 22.0 L/min Ground Loop Glycol Circuit |
| Control & Smart Grid | Genesis Control Board, OpenTherm, Modbus RTU |
The Sage Verdict on Kensa Ground Source (Shoebox & Evo)
If you have the garden space or budget for ground loops, Kensa Ground Source is the ultimate clean heating technology. It has no outdoor unit, makes virtually zero noise, and delivers the lowest electrical running costs possible in Britain.
Claim Your £7,500 BUS Grant on the Kensa Ground Source (Shoebox & Evo)
Connect with accredited local MCS heating engineers in your area. Free heat-loss survey and £7,500 statutory grant deducted upfront on your invoice with 0% VAT.
Frequently Asked Questions: Kensa Ground Source (Shoebox & Evo)
Will the Kensa Ground Source (Shoebox & Evo) Pass MCS 020 Noise Limits?
Under UK Permitted Development rules, sound pressure at your neighbour's window must not exceed 42.0 dBA. Test this heat pump at your exact garden boundary distance.
Cut Your Heat Pump Electricity Bills by Up to 60%
Pairing a heat pump with an off-peak smart tariff (like Your Co-op Energy or Octopus Cosy) drops unit rates to ~12.5p/kWh during heating hours.