HW Supply

The recommended storage temperature for hot water is

• 50 - 55^oC

• 60 - 65^oC

• 70 - 75^oC

• 80 - 85^oC

A sink water heater would be classed as what type of system

• localised

• centralised

• multi-point

• combi system

The cold feed connection to a cylinder would be connected

• near to the top of the cylinder

• near to the middle of the cylinder

• near to the bottom of the cylinder

• there is no requirement

The type of servicing valve fitted to the cold feed pipe would be a

• stop valve

• gate valve

• spherical plug valve

• float operated valve

the correct size for the open vent pipe is

• 15mm

• 22mm

• 28mm

• 35mm

A system where all HW outlets are supllied from a cylinder would be termed a

• localised system

• combi system

• centralised system

• instantaneous system

A HW system that uses a combination boiler would be termed a

• localised system

• centralised system

• bi-flow system

• storage system

The BS document that gives technical guidance for hot water installations is

• BS EN 806

• BS 6700

• BS EN 806

• BS 7671

A combination boiler system provides

• storage of hot water

• instantaneous hot water

A disavantage of a storage HW system using a cylinder is that

• you heat water only when required

• you heat and store water that may not be used

• it only provides HW at one outlet

• it only provides instantaneous hot water