I recently purchased the Prestons guide so I dont have to keep asking about ages of equipment but…
…The home today had a Bryant Series SE-F Serial # 9Y294567.
Does this mean the furnace was installed before 1965?
I observed a heating duct in the garage and referenced to the code check
No ducts openings into garage…[309.1.1]
Is the reason for no ducts in garage due to the potential for Carbon monoxide being distributed to the other ducts?