Water-cooled Heat Pump- Pros: Lowest energy consumption, low maintenance on geo-thermal wells Cons: High installation cost (short term), high maintenance on compressors (long term), compressor noise
Water-cooled Chillers- Pros: Low energy consumption, longest system life Cons: High installation cost, easily damaged, large mechanical space, and requires outdoor space for cooling tower, high maintenance for cooling tower
Air-cooled Chillers- Pros: Moderate energy consumption, moderate installation cost, moderate system life Cons: Large/noisy chillers located outside
Gas-fired hot water- Pros: Lowest energy cost, moderate maintenance cost, long service life Cons: Highest installation cost Electric resistance coils- Pros: Lowest installation cost, low maintenance cost, moderate service life Cons: Highest energy consumption
-HVAC Systems:
Water-cooled Heat Pump-
Pros: Lowest energy consumption, low maintenance on geo-thermal wells
Cons: High installation cost (short term), high maintenance on compressors (long term), compressor noise
Water-cooled Chillers-
Pros: Low energy consumption, longest system life
Cons: High installation cost, easily damaged, large mechanical
space, and requires outdoor space for cooling tower, high maintenance for cooling tower
Air-cooled Chillers-
Pros: Moderate energy consumption, moderate installation cost, moderate system life
Cons: Large/noisy chillers located outside
Gas-fired hot water-
Pros: Lowest energy cost, moderate maintenance cost, long service life
Cons: Highest installation cost
Electric resistance coils-
Pros: Lowest installation cost, low maintenance cost, moderate service life
Cons: Highest energy consumption