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QUESTION 6
(a) Describe the operation of a balanced flue fitted to a space heater.
(4 marks)
(b) Describe the operation of a thermo-electric flame failure device fitted to a space-heating
appliance.
(4 marks)
c) State FOUR likely causes of flames that are emerging from the top of the radiants of a
flued gas space heater. (Assume that the gas rate to the appliance is correctly set.)
1
2
3
4
(4 marks)
Total 12 marks