Before lighting any burner in a cold boiler...
Question 1 of 27070
Q
Before lighting any burner in a cold boiler you should always __________.
A
purge the furnace with air
B
open the furnace peephole cover
C
close off the burner register
D
reduce the forced draft pressure
Question 1 / 27070
5eccefa0bacbc34ba4d4700d
Question 1 of 27070
5eccefa0bacbc34ba4d4700d
Before lighting any burner in a cold boiler you should always __________.
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A
purge the furnace with air
B
open the furnace peephole cover
C
close off the burner register
D
reduce the forced draft pressure
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Question 1 of 27070
5eccefa0bacbc34ba4d4700d
Q
Before lighting any burner in a cold boiler you should always __________.
A
purge the furnace with air
B
open the furnace peephole cover
C
close off the burner register
D
reduce the forced draft pressure
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