iHEAT 11.5 kW Monobloc Air Source Heat Pump
Natural R290 Refrigerant · A+++ Rated
Our iHEAT 11.5kW delivers 21% more capacity than the 9.5kW, making it ideal for larger homes and light commercial buildings. Full inverter technology, Carel smart controller, and natural R290 refrigerant combine to deliver A+++ efficiency with ultra-quiet operation. Reaches 75°C without auxiliary heating — compatible with existing radiators for straightforward UK retrofits.
Integrated iSAVE™ AI Platform
Blockchain-Verified Carbon Monitoring & Grid Optimisation
Carbon Credit Monetisation
Blockchain-verified emissions data enables automatic generation and sale of carbon credits, creating recurring revenue streams from your heat pump operations.
Virtual Power Plant Ready
Participate in demand response programmes and utility partnerships, earning incentives by shifting thermal loads during peak pricing periods.
Real-Time Performance Optimisation
Cloud-based fluid dynamics models continuously tune system parameters, maximising COP and reducing operational costs by 15–25%.
Predictive Maintenance Analytics
Machine learning algorithms detect anomalies and predict component failures weeks in advance, reducing downtime and maintenance costs by up to 40%.
Solar PV Self-Consumption
Intelligent thermal storage optimisation maximises use of on-site solar generation, reducing grid dependency and accelerating ROI on renewable installations.
Tamper-Proof Data Integrity
Integrated UPS and cryptographic verification ensure continuous, auditable emissions tracking for regulatory compliance and credit certification.
Key Features at a Glance
75°C Hot Water
Reaches high water temperatures without auxiliary electric heating, even in cold climates — perfect for UK retrofit without radiator changes.
A+++ Efficiency
Top-tier energy rating and R290 with GWP 3 ensure minimal environmental impact and lower energy bills year-round.
Whisper Quiet
Dual-dampened Panasonic Twin Rotary Inverter and aerodynamic cabinet from 40.4 dBA.
Smart Control
Manage remotely via the Applica mobile app with real-time status, weather compensation, and three-zone control.
SG Ready
Integrates with smart grids to store thermal energy when electricity is cheapest.
-25°C Operation
Maintains high COP and reliable stability in extreme winter conditions.
Ideal Applications: Modern Hydronic Systems
The iHEAT pump excels when paired with high-performance hydronic distribution systems, delivering significant benefits over traditional forced-air systems.
Maximum Energy Efficiency
Water is 3,500× more efficient than air for thermal transfer, enabling localised zoning and reduced fan energy.
Superior Comfort & Air Quality
Hydronic systems provide silent, radiant comfort with stable temperatures and no drafts.
Architectural Flexibility
Compact water pipes replace bulky air ducts, saving ceiling plenum space and allowing greater design freedom.
UK Retrofit & Installation Advantages
Our R290 high-temperature heat pumps are engineered specifically for seamless UK home retrofits, delivering heating, domestic hot water, and optional summer cooling — all while working with your existing infrastructure.
Use Existing Radiators
75°C output matches gas boiler temperatures — no need to replace radiators or pipework. Simply swap and start saving.
Lower Installation Costs
Avoid expensive radiator upgrades. Retrofits typically cost 40–60% less than low-temperature systems.
Summer Cooling Ready
Connect to our iZONE fan coil units for efficient air conditioning — a complete 3-in-1 climate solution.
Instant Hot Water
Domestic hot water at mains pressure alongside space heating — no separate immersion heater needed.
Boiler Plus Compliant
Exceeds UK Boiler Plus regulations with A+++ efficiency, smart controls, and weather compensation.
MCS & BUS Grant Eligible
MCS certified (HP0304) and eligible for the £7,500 Boiler Upgrade Scheme grant.
Boiler Upgrade Scheme — Current Position
iHEAT R290 11.5kW qualifies for the standard £7,500 Boiler Upgrade Scheme grant in England and Wales. One grant per property.
Households currently heated by oil or LPG become eligible for an uplifted £9,000 grant from July 2026 — UK Government announcement, 21 April 2026.
Performance
| Max Heating Output | 11.5 kW |
| Heating COP Range | 4.29 – 5.64 |
| Max Cooling Output | 11.5 kW |
| Cooling EER Range | 2.92 – 4.20 |
| Ambient Operating Range | -25 °C to 45 °C |
Technical Specifications
| Order Reference | CGK040V4P |
| Power Supply | 220–240V / 1Ph / 50–60Hz |
| Max Operating Current | 24.16 A |
| Recommended Breaker | 32 A |
| Compressor | Panasonic Twin Rotary Inverter |
| Pump | Grundfos (R290 Explosion-Proof) |
| Control System | Carel Controller |
| Refrigerant / Charge | R290 / 0.5 kg (GWP 3) |
| Sound Pressure Level | 40.4 – 49.2 dBA @ 1m |
Dimensions & Weight
| Unit Dimensions (L×W×H) | 1110 × 475 × 960 mm |
| Net / Gross Weight | 125 kg / 138 kg |
| Cabinet Material | Weather-resistant PP + Galvanised Metal + ABS |
Advanced Technology & Design
High-Efficiency Components
Electronic Expansion Valve (EEV) technology combined with a BLDC inverter compressor ensures a higher Seasonal Coefficient of Performance (SCOP) and lower power consumption.
Innovative Cabinet Design
Durable ABS blister panel with 45-degree stripe design and a spiral mesh cover aerodynamically optimised for both aesthetics and noise reduction.
Superior Evaporator
Efficient frost-flow design shortens defrosting time and reduces heat waste. Increased fin area allows a 20% reduction in fan speed vs R32 units, boosting efficiency.
Intelligent Control
Intuitive Management
Intelligent touchscreen and Wi-Fi control allow real-time monitoring and remote management via the Applica mobile app.
Primary Software Functions:
- Manages primary water (heating/cooling) and domestic hot water (DHW)
- Modulated, high-efficiency control of fans, pumps, and EEVs
- Intelligent operating limits and optimised low-load compressor management
- Automated safety functions: Defrost, Antifreeze, and Anti-Legionella cycles
- Alarm system with integrated troubleshooting guides
Hydronic System Management:
- Climate curve management for weather compensation
- Circulation pump activation controlling up to three distinct zones
- Specialised screed-drying function for new construction
Frequently Asked Questions
What is the COP of the iHEAT 11.5kW?
The single-phase iHEAT 11.5kW achieves a heating COP of 4.29–5.64; the three-phase variant achieves 4.42–5.61, depending on operating conditions.
How does the 11.5kW differ from the 9.5kW?
The 11.5kW delivers 21% more heating capacity (11.5kW vs 9.5kW) and up to 11.5kW cooling (vs 7.5–8.4kW). It is physically larger than the 9.5kW (960mm height vs 810mm) and heavier (125kg vs 112kg).
Does the iHEAT 11.5kW qualify for the UK BUS grant?
Yes. MCS certified (HP0304) and eligible for the £7,500 Boiler Upgrade Scheme grant in England and Wales. Households currently heated by oil or LPG become eligible for an uplifted £9,000 grant from July 2026 (announced 21 April 2026). Ofgem awards one grant per property — cooling via iZONE fan coils is delivered by the same reversible iHEAT on the same install, not a separately stacked grant.
Can the iHEAT 11.5kW work with existing radiators?
Yes. Delivers water at up to 75°C, matching gas boiler temperatures. No radiator upgrades required in most UK homes.
What refrigerant does the iHEAT 11.5kW use?
R290 (propane) with GWP of 3 — over 700 times lower than R410A. PFAS-free and future-proof against F-gas regulations.