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Hot and Cold Water Systems - NGfL Cymru

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					              NGfL CYMRU GCaD




HOT & COLD WATER
    SYSTEMS




              www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS               NGfL CYMRU GCaD



  To heat a property with a boiler, water is heated
  and then distributed to rooms pipe work. Heat is
  introduced into the rooms via convection radiators.



  RADIATOR                               RADIATOR

                           BOILER
  RADIATOR                               RADIATOR



  RADIATOR                               RADIATOR

                                        www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS               NGfL CYMRU GCaD




  A boiler with a cold water header and hot water
  storage tanks can be used to heat a house.

  Alternatively, a combination (“combi”) boiler may
  be used. Combi boilers are suitable for small
  dwellings, and simultaneously supply hot water
  for heating and sinks / taps.




                                        www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS               NGfL CYMRU GCaD



                           Cold water storage tank


                                            Hot water
                                           storage tank



                                               Boiler




                                             Radiators




                                       www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS          NGfL CYMRU GCaD




                           Gas meter with
                           incoming mains and
                           isolation valves




                                  www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS           NGfL CYMRU GCaD




 Close-up of a gas meter readout   www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                  NGfL CYMRU GCaD




Gas governor and meter in a large University building
                                           www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS               NGfL CYMRU GCaD




  Above: Domestic cold water storage
  tank.
  Right: Hot water storage tank

                                       www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS               NGfL CYMRU GCaD




                           Hot water boiler.




                                        www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS          NGfL CYMRU GCaD


Isolation valves: if the handle
or screw head is parallel to
the pipe, then the valve is
open.




                                  www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                               NGfL CYMRU GCaD




             Flexible filling hose of a combi boiler   www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS   NGfL CYMRU GCaD




  Inside combi boilers




                           www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                     NGfL CYMRU GCaD




     The burner of a combi boiler in operation
                                             www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                          NGfL CYMRU GCaD




 The boiler house of a University building under construction.
                                                  www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                           NGfL CYMRU GCaD




 Hot and cold water is distributed via insulated pipework
                                                   www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS              NGfL CYMRU GCaD




                           Pipework in a small
                           domestic heating and hot
                           water system




                                       www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS             NGfL CYMRU GCaD




                           Large panel radiator in
                           an office building.




                                      www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                          NGfL CYMRU GCaD




 Above, radiators, with fixing brackets and thermostatic
 radiator valves.                               www.ngfl-cymru.org.uk
HOT & COLD WATER SYSTEMS                                NGfL CYMRU GCaD




 Under-floor heating can also be used to heat a building. Hot water is
 pumped through pipes which are set into the floor screed. As heat rises,
 it warms the floor slab and the air in the room.       www.ngfl-cymru.org.uk

				
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posted:7/25/2011
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