G3 - Gas Technician Level 3 Certification Practice Test
G3 - Gas Technician Level 3 Certification G3 G3 - Gas Technician Level 3 Appliance Installation and Service Questions and Answers
What is the minimum clearance from combustible materials typically required when installing a gas-fired forced-air furnace in the US?
Select your answer
A
1 inch on all sides
B
Follow manufacturer's listed clearances
C
6 inches on all sides
D
12 inches on the front only
Hint