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3b) There are two main types of flue that operate in different ways. From the descriptions below of how different appliances operate, identify the type of flue fitted.
There are a range of controls found on heating appliances, each of which has its own function. Below are photographs of some heating controls and below them brief notes defining the function of different controls.
Study the photographs and the definitions, then complete the table by matching the control with its correct photograph number and definition letter.
A: Controls the temperature of the hot water coming out of the taps.
B: Controls the temperature of the water coming out of the boiler and stops the boiler overheating.
C: Turns the central heating off when the air temperature in the room reaches the desired temperature.
D: Controls the flow of hot water through the radiator, thus controlling the temperature in a particular room.
E: Controls the amount of heat stored up in the heater overnight.
F: Switches the system on and off at the times set and allows different programs for heating and hot water to be set.
G: Regulates the rate of heat flow from the storage heater during the day.
A client who lives in a three-bedroom house heats his home and domestic hot water by open coal fires and a back boiler. He is considering installing central heating but wishes to continue using solid fuel. Which solid fuel system would be the cheapest to run annually?
Mr James lives in a two-bedroom house where the only form of space heating is a mains gas radiant fire in the lounge/diner. He is considering installing a heater in an upstairs room, but is undecided whether to install a mains gas wall heater or an electric fire.
Use the Heating Cost table below to answer the following questions:
Bill 18 (click to enlarge)