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Offline LisaS

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Question 6
« on: February 11, 2009, 09:15:53 AM »
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

Linkback: https://www.plumbers.nz/gas-exam-june-2007/21/question-6/126/


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