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cold water supply system in a building, hot water supply system in a…

- - - - advantage
        
        high flow rates
        
        power shower capability
        
        low maintenance costs
        
        less risk of being without supply
      - disadvantage
        
        pre heat how water needed
        
        hot water require recovery time
        
        low maintenancce costs
        
        risk of pipes freezing in winter
    - - advantage
        
        long term energy savings
        
        unlimited hot water
        
        less physical space
        
        reduced risk of water damage
      - disadvantage
        
        start up delay
        
        no operation with low pressure