Which of the following are a factory-made combination of aluminum inner wall and steel outer wall with about a 3/4" space between the two walls?
A) single wall chimneys
B) single wall vent connectors
C) Type B vents
D) double wall, Type L vents
Correct Answer:
Verified
Q14: Which of the following occurs when all
Q15: When does secondary air combine with gas?
A)before
Q16: Which category of appliances are nonpositive vent
Q17: Which category of appliances are nonpositive vent
Q18: Which of the following is a special
Q19: The principal products of combustion of any
Q21: Asbestos-cement piping is considered a hazardous material
Q22: What three things are required for combustion
Q23: Dryer lint is not flammable.
Q24: List at least three common chimney problems
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