Insulation Around Furnace Exhaust

The other day while cleaning i discovered that the gas water heater vent terminates on the side wall and there s almost an 1 gap around it going directly outside without any insulation.

Insulation around furnace exhaust.

The flue is the metal tubing that extends up from the top of your gas furnace or water heater that carries the carbon monoxide gas from the heating unit to your. This exhaust is 5 rigid metallic duct that runs horizontal with a slope for 6 before turning vertical via an elbow and round to rectangular. If this is your first visit be sure to check out the faq. These gaps should be sealed with lightweight aluminum flashing and special high temperature heat resistant caulk.

Ceramic fiber insulation blanket roll 6 density 2300 f 1in x24in x60in for kilns ovens furnaces forges stoves 17 model cf6 1 24x60in 47 50 box. Fiberglass insulation is naturally fire resistant. It is often installed in gaps around the chimney and flue to prevent airflow that can siphon the heat away from the interior of the building. This makes it an ideal insulation material for use in areas that experience high temperatures.

As such it can be used to insulate a chimney. I was looking to close up the small gap where the exhaust pipe goes into the chimney because the gas and electric company said carbon monoxide was detected around the opening. Use the same technique for masonry chimneys. How doers get more done.

Master flow 6 in. Attic insulation around furnace flues. Flashlight or other lighting knee pads gloves face mask full length clothing insulation and attic work are dirty and itchy sheet metal scissors high temp heat resistant caulk. Probably already was bad connection or breach of inner wall or other problem with bypass insulation at attic floor and around vent was and is inappropriate treatment of symptom and dangerous.

Furnace flues the pipe that removes your furnace exhaust can be very hot. I recently used spray foam from a can around an exhaust pipe coming from a hot water tank in the opening of my chimney. Dia r 8 ductwork insulation sleeve 22 model inslv6r8. How to insulate a metal flue pipe.

Before you push the insulation back into place build a metal dam to keep it away from the pipe. What type of insulation can i stuff in around the exhaust to stop the cold air. Gather your materials and prepare the space.