What material is recommended for a vent connector on all non-condensing, induced-draft furnace
installations?
a. PVC pipe
b. Stainless steel pipe
c. Single-wall pipe
d. Type B vent pipe
Question 2
The removal of combustion gases by natural draft is made possible by _____.
a. heating of the flue gases
b. cooling of the flue gases
c. using a very large diameter vent
d. providing outdoor air directly to the burner