Nui HeatTech Market Analysis

  NUI HeatTech Air Source Heat Pump Ground Source Heat Pump Water  Heat Pump
Coefficient of Performance 6.3 3 3 3-5 18
Power density (W/m2) 17,500 W/m2 23 W/m2 15 Very low Very low
Location Inside homes Must be outside Needs land to build underground Must be located near water
Noise level outside   40 – 50 dB from 1m away16 0 dB 0 dB
Ozone depletion effect? No Yes, by use of refrigerants Yes, by use of refrigerants Yes, by use of refrigerants
Carbon
emissions?
No Yes, by use of refrigerants Yes, by use of refrigerants Yes, by use of refrigerants
Efficiency
dependent on weather?
No Yes No No
Installation cost in the UK (£)   £6000 – 8000 17 £10,000 – 18,000 17 £10,000 20  
Need for outdoor construction? No No Yes, 90-160m deep19 Yes
Use of water? No No Yes Yes
Scalability? Yes Yes Yes Yes

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