NATE and ACE are working together to replace an old gas furnace with a new gas furnace. The new equipment is more efficient than the system being replaced.
NATE: “ACE, please get the stovepipe out of the storage area.”
ACE: “What?”
NATE: “Go check the installation literature so we take the right supplies to the job.”
ACE: “Uh, NATE, I can’t find the information on a stovepipe in the literature. It does talk about using materials that are good for Category I appliances.”
NATE: “ACE, I hate to admit this, but when it comes to the new furnace venting, I always have to refer to the code book to make sure I’m not incorrect in selecting materials. Let’s get the code book out of the truck and make sure we have the proper materials. We can then look up the Category I information.”
ACE: “I have the code book. Can you tell me what category each falls into?”