Our Product Range

From high-temperature heating to ultra-low temperature industrial processes, our natural refrigerant systems deliver unmatched efficiency across all applications

iHEAT — High-Temperature Heat Pumps

CO₂ & R290 Heat Pumps for Industrial Applications

Our iHEAT range delivers hot water up to 90°C with industry-leading efficiency. Perfect for process heating, sanitization, and industrial hot water requirements.

  • Up to 75% energy savings vs traditional gas boilers
  • COP 4.0–4.5 at 80°C output temperature
  • Waste heat recovery — turn your heat waste into revenue
  • Thermal storage compatible for off-peak charging
  • Natural refrigerants only — PFAS-free, future-proof
View Full iHEAT Range →

Technical Specifications

Capacity Range6 – 350 kW
Output TemperatureUp to 90°C
RefrigerantCO₂ (R744) / R290
COP4.0 – 4.5
ApplicationsIndustrial, Commercial
Operating Hours4,000 hrs/year typical

iSTOR — Thermal Battery Systems

Phase Change Thermal Energy Storage

Our iSTOR range uses advanced Plentigrade™ Phase Change Materials to store thermal energy with exceptional density—up to 3x smaller than equivalent water-based systems. Available for both heating and cooling applications.

  • 3x more compact than water-based thermal stores
  • Shift loads to off-peak tariffs for maximum savings
  • Decouple supply from demand — charge anytime, use anytime
  • Modular & scalable — connect in series or parallel
  • Ultra-low standby losses — best-in-class insulation

Technical Specifications

Capacity Range33 – 80 kWh
Heating Output54°C to 83.5°C
Cooling Output6°C to 12°C
TechnologyPlentigrade™ PCM
Max Pressure16 bar (1.6 MPa)
Standby Loss0.66 – 5.83 kWh/24h

iCOOL — CO₂ Refrigeration Systems

Best-in-Class Commercial Refrigeration

Inverter-driven CO₂ refrigeration units engineered for maximum efficiency, reliability, and quiet operation. Ideal for cold storage, cold chain logistics, and commercial cooling.

  • 40% more efficient than standard refrigeration
  • COP 3.5+ in tropical climates
  • Whisper-quiet operation — ideal for urban environments
  • Natural CO₂ refrigerant — GWP of 1, PFAS-free
  • 24/7 continuous operation — built for reliability
View Full iCOOL Range →

Technical Specifications

Capacity Range6 – 350 kW
Temperature Range−40°C to +15°C
RefrigerantCO₂ (R744)
COP3.5 – 4.0
ApplicationsCold Storage, Logistics
Operating Hours8,000 hrs/year typical

iZONE — Hydronic Fan Coil Units

PFAS-Free Hydronic Distribution

Complete range of hydronic fan coil units for superior comfort and zone control. Water-based heat transfer eliminates refrigerant in occupied spaces—delivering 30% better efficiency than traditional split AC systems.

  • 30% more efficient than split AC systems
  • Year-round comfort — heating & cooling from one unit
  • Zero indoor refrigerant — PFAS-free, water-only
  • Precision zone control — room-by-room comfort
  • Whisper-quiet — 37–51 dB(A) operation
View Full iZONE Range →

Technical Specifications

Unit TypesCassette, Ducted, Vertical, Compact
Capacity Range1.8 – 15 kW
Heat TransferWater (PFAS-free)
Air Flow340 – 2380 m³/h
ApplicationsCommercial, Residential, Hotels
Control OptionsWireless, Wired, RS485 ModBus

iSAVE — Smart Energy Platform COMING Q4 2026

Matter-Certified Smart Home Integration

The first PFAS-free hydronic HVAC system with native Matter/Thread integration. iSAVE transforms your Karnot system into an intelligent platform delivering energy savings, carbon credits, and grid revenue.

  • 15–25% energy savings through AI optimisation
  • Smart home compatible — Apple Home, Google, Alexa
  • Blockchain carbon credits — Gold Standard certified
  • VPP-ready — earn £500–2,000/year per unit
  • Predictive maintenance — 60% downtime reduction
Learn About iSAVE →

Platform Features

Smart Home ProtocolMatter + Thread
Voice ControlSiri, Google, Alexa
Energy Savings15–25% reduction
Carbon CreditsGold Standard blockchain
VPP Revenue£500–2k/year per unit
Launch DateQ4 2026

AquaHERO — Heat Pump Water Heaters

All-in-One R290 Hot Water Solutions

Perfect for commercial and residential installations. Split system design means fast installation, minimal disruption, and exceptional performance with COP 4.0+ efficiency.

  • 78% energy savings vs gas/electric water heaters
  • COP 4.2 for domestic hot water applications
  • Split system design — easy retrofit installation
  • R290 refrigerant — natural, efficient, PFAS-free
  • Thermal storage ready for maximum savings
View AquaHERO Models →

Technical Specifications

Capacity Range9.5 – 12 kW
Output TemperatureUp to 60°C
RefrigerantR290 (Propane)
COP4.2 – 4.5
ApplicationsCommercial, Residential
Operating Hours2,500 hrs/year typical

iCRYO — Ultra-Low Temperature Cooling

Advanced Air-Cycle Refrigeration

Revolutionary air-cycle technology providing 100% oil-free, ultra-low temperature cooling for demanding scientific and industrial applications. The sustainable alternative to liquid nitrogen.

  • 96% cost savings vs liquid nitrogen systems
  • Temperatures to −120°C with air-cycle technology
  • 100% oil-free — no contamination risk
  • Zero emissions — uses air as refrigerant
  • Continuous operation — no LN₂ deliveries needed
View iCRYO Systems →

Technical Specifications

Capacity Range3 – 200 kW
Temperature Range−120°C to −40°C
RefrigerantAir (Natural)
COP1.5 – 2.0
ApplicationsScientific, Pharma, Food
Operating Hours8,000 hrs/year typical

HydroGreen — Vertical Pasture Systems

Climate-Controlled Fodder Production

Revolutionary vertical farming technology that produces fresh, nutrient-rich fodder 365 days a year. Reduce cattle finishing time by 21% while using 95% less water than traditional grazing.

  • 21% faster finishing — 100 days reduced to 79 days
  • 95% less water than traditional pasture
  • +33% capacity — more cycles per year
  • Climate-controlled — consistent production year-round
  • Land-efficient — minimal footprint vs traditional grazing
View HydroGreen Systems →

System Specifications

Herd Capacity50 – 500 head/cycle
Daily ProductionScalable per herd size
Water Savings95% vs pasture
Growth Cycle6–8 days seed to feed
ApplicationsCattle, Dairy, Livestock
Climate ControlIntegrated HVAC

iMESH — Adiabatic Pre-Cooling Retrofit

The Fastest Payback in HVAC

Bolt-on adiabatic cooling system that delivers 20–30% efficiency gains for existing chillers through evaporative pre-cooling. Industry-leading 21-week payback period.

  • 20–30% efficiency boost for existing chillers
  • 21-week payback — fastest ROI in HVAC
  • Zero downtime install — bolt-on retrofit design
  • Works with any chiller — brand agnostic
  • Low maintenance — simple, reliable technology
View iMESH Solutions →

Technical Specifications

Chiller Size Range20 – 2,000 kW
Efficiency Gain20–30%
TechnologyAdiabatic Pre-Cooling
Payback Period21 weeks average
ApplicationsCommercial, Industrial
Installation Time1–2 days typical

Product Datasheets & Technical Documents

Download detailed specifications, installation guides, and performance data for all Karnot products