iHEAT 15.5kW (1Ph) Monobloc Air Source Heat Pump
Natural Refrigerant R290 · A+++ Rated
The iHEAT 15.5kW delivers 35% more capacity than the 11.5kW, making it ideal for larger homes, light commercial retrofits, and properties with high hot water demand. Full inverter R290 technology, 75°C output, and integrated smart controls — all in a single outdoor unit.
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.
Revenue Enhancement: iSAVE transforms traditional heat pumps into revenue-generating assets through three channels: carbon credit sales, utility demand response payments, and reduced energy procurement costs. Typical installations see 8–15% additional annual returns beyond energy savings alone.
Key Features at a Glance
75°C Hot Water
Reaches high water temperatures without auxiliary electric heating, ideal for domestic hot water and existing radiator systems.
A+++ Efficiency
Top-tier energy rating and R290 GWP of 3 ensure minimal environmental impact and lower energy bills across all operating conditions.
Whisper Quiet
Dual-dampened compressor and optimised fan design achieve as low as 40.4 dBA — quieter than a typical conversation.
Smart Control
Wi-Fi control via the Applica mobile app with real-time status display, weather compensation, and multi-zone management.
SG Ready
Integrates with smart grids to shift thermal loads to cheapest grid periods, maximising savings with time-of-use tariffs.
13.4kW Cooling
Delivers powerful summer cooling (EER up to 4.28) when paired with iZONE fan coil units — eligible for the £2,500 cooling grant.
Ideal Applications: Modern Hydronic Systems
The iHEAT 15.5kW excels when paired with high-performance hydronic distribution, delivering superior efficiency 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 for a lower carbon footprint.
Superior Comfort & Air Quality
Hydronic systems provide silent, radiant comfort with stable temperatures and no drafts, creating a healthier indoor environment.
Architectural Flexibility
Compact water pipes replace bulky air ducts, saving valuable ceiling plenum space and allowing greater freedom in building design.
UK Retrofit & Installation Advantages
Engineered for seamless UK retrofits — delivering heating, domestic hot water, and optional cooling while working with existing radiator infrastructure.
Use Existing Radiators
75°C output matches gas boiler temperatures — no radiator or pipework replacement needed. Switch to clean energy immediately.
Lower Installation Costs
Avoid expensive radiator upgrades or underfloor heating. Retrofits typically cost 40–60% less than low-temp (35°C) systems.
Summer Cooling Ready
Connect iZONE fan coils for efficient summer cooling — a complete 3-in-1 solution unavailable from traditional gas boilers.
Instant Hot Water
Domestic hot water at mains pressure alongside space heating — no separate immersion heaters 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 BUS grant — significantly reducing upfront investment.
Retrofit Reality: Unlike low-temperature heat pumps (35–55°C) that require expensive radiator replacements, our high-temperature R290 systems deliver the same water temperatures homeowners are familiar with — making the gas-to-clean-energy transition straightforward, affordable, and immediate.
Warm Homes Plan Grant-Eligible (2026)
iHEAT R290 systems qualify for the universal BUS grant — covering substantial installation costs.
Our iZONE fan coils now receive £2,500 grant support for summer cooling capability.
Performance
| Max Heating Output | 15.5 kW |
| Heating COP Range | 4.42 – 5.75 |
| Max Cooling Output | 13.4 kW |
| Cooling EER Range | 3.60 – 4.28 |
| Ambient Operating Range | −25 °C to 45 °C |
Technical Specifications
| Order Reference | CGK050V4P |
| Power Supply | 220–240V / 1Ph / 50–60Hz |
| Max Operating Current | 32.54 A |
| Recommended Breaker | 40 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 – 50.8 dBA @ 1m |
Dimensions & Weight
| Unit Dimensions (L×W×H) | 1110 × 475 × 1355 mm |
| Net / Gross Weight | 145 kg / 160 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 delivers a superior Seasonal COP and lower power consumption across the full operating range.
Innovative Cabinet Design
The ABS blister front panel features 45° stripe styling and an aerodynamically optimised spiral mesh cover for reduced airflow noise. Weather-resistant PP construction ensures long-term outdoor durability.
Superior Evaporator
Frost-flow evaporator design shortens defrost cycles and reduces heat waste. Increased fin area allows a 20% reduction in fan speed vs R32 units, boosting efficiency and reducing noise.
Intelligent Control
Intuitive Management
Intelligent touchscreen and Wi-Fi control via the Applica mobile app — view operating status in real-time and manage the system from anywhere.
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 for up to three distinct zones.
- Specialised screed-drying function for new construction.