Perfectly Installed Furnace, Potential Fire Hazard

The installer did a great job when this furnace was installed. They dropped a liner down the existing chimney to be sure that there would be no issues.
The flue pipe from the furnace only required single wall pipe and yet they upgraded to double wall “B-vent” pipe. They were doing it correctly. They left the user manual and warranty papers in a plastic pouch within easy reach of the furnace for future reference.
What could possibly be wrong, they evidently knew their trade and wanted to do it right.
Unfortunately they never thought about the plastic pouch with the user manual, located behind the double wall flue pipe it is a fire safety issue. The upgraded double wall flue pipe known as a “B-vent” pipe requires a minimum clearance of one inch to combustibles. Relocating the pouch was a simple twenty second job, luckily this error did not cause a family to loose their house in a tragic fire.

Note: There are two types of metal furnace flue pipe, single wall pipe which requires a minimum 6” clearance to combustibles and double wall pipe which requires a minimum 1” clearance to combustibles. Drywall, wood and most insulation products are considered combustibles.