A ____ furnace has a positive vent pressure and operates with a vent gas temperature at least 140°F above its dew point and is known as a mid-efficiency furnace.
A) Category I
B) Category II
C) Category III
D) Category IV
Correct Answer:
Verified
Q1: Adding insulation to the attic is fairly
Q3: _ streaks in a flame are dust
Q4: The home's exterior is also known as
Q5: _ draft is taken in the vent
Q6: Ventilation has little effect on moisture control.
Q7: _ is a colorless and odorless gas
Q8: _ is the force that allows air
Q9: Cavity insulation can be installed at levels
Q10: Homeowners can cut utility bills by _%
Q11: Diagnostic testing and evaluation of the home
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