Font size
WorksheetsHot Water - System Choice
Total questions: 9
Worksheet time: 5mins
The choice of Hot Water system depends on which of the following points -
The number of hot water outlets
Running cost and fuel efficiency
The number of cold water outlets
Number of occupants
Centralised Hot Water Systems are where-
It has to be installed in the middle of the house.
Hot water is delivered from a central point to all outlets.
Must be contained in a cylinder.
What does a direct cylinder not have ?
Hot Water Thermostat
Coil
Drain off
The Hot Water Draw Off Pipe Must -
incorporate 450mm of horizontal pipe
service valve
rise slowly
connect to the open vent
connect to the side of the cylinder
If the CWSC is 5m above the Hot Water Cylinder the pressure of the hot water will be -
5 bar
1 bar
0.1 bar
0.5 bar
If you had low pressure and flow rate how could you increase the Hot Water output -
install a direct system
install an instantaneous system
install a storage system
Why have an open vent on a Hot Water system -
so water can be drawn off from this pipe
feeds the CWSC
allows for the expansion of water
The open vent must be a minimum of -
15 mm
22 mm
28 mm
Doesn't matter
At what temperature can we control a solid fuel Direct Cylinder -
60 - 65
50 - 55
Doesn't matter
There is no real way of controlling the temperature
