This thread is dedicated exclusively for those students currentlyenrolled in the InterNACHI online course titled, "How to Inspect Fireplaces, Stoves, and Chimneys."
Students are free to pose questions and comments here and join in the conversation with other students. The thread will be monitored by the course instructor.
Factory-built or masonry fireplaces must be provided with an exterior air supply to assure proper fuel combustion unless the room is mechanically ventilated.
Normal masonry fireplaces require make up air from exterior of home???
I keep getting directed to here, when trying to take this course. What am I doing incorrectly. I have just completed my Wett certification,and am in the process of doing training inspections.
Hi Ben,
The student material for chimney liners states that the total thickness should be 4". It says that since a brick is 3 5/8" this means the liner should be 5/8". That’s 4 1/4". What’s correct?
The firebox walls are slanted to reflect heat energy into the room. This angle of the walls is referred to as "splay". Splay slope is usually 5 inches per foot. The sloped walls help direct smoke into the throat of the fireplace.
The fire extinguisher & fire types were hard to remember.