Cracked Heat Exchanger Oil Furnace

Weld the sheet metal some more as it dries.

Cracked heat exchanger oil furnace. When the flame is blue it means your. Often when cracks are present in a heat exchanger soot from the combustion process will seep through and discolor the metal. A furnace flame should be blue in appearance. The heat exchanger in your furnace heats air traveling from one end to the other.

If you have a steel exchanger then cut down a piece of sheet metal to cover the crack plus 2 inches all the way around. If your heat exchanger has cracks these cracks cause your furnace to perform inefficiently. A normally operating gas furnace has a steady blue flame. Fire up a welder and use the liquid metal to form a glue like line around the edge of your sheet metal.

The result will be a buildup of soot around the crack site and or spots that are a darker color than the rest of the metal. Incomplete combustion usually causes an increase in soot. Here are some signs that may indicate your issue is a cracked or malfunctioning heat exchanger. A crack in your heat exchanger is no trivial matter.

If you see evidence of soot which is actually a black carbon buildup on the inside of the furnace it s a sign your furnace isn t burning cleanly. But the decision to repair or replace a heating unit can be difficult. It s the most common cause of excess carbon monoxide in a home. This happens when the.

When carbon builds up within the interior of the heating system then soot accumulates. This is because air is entering the combustion chamber through the crack in the heat exchanger. Signs and symptoms of a cracked gas furnace heat exchanger change in flame appearance. Press this onto the furnace heat exchanger and allow it to dry.

Cracks and corrosion on other components. Depending on the age of your furnace a cracked heat exchanger probably means you need a new system. A cracked heat exchanger allows air from the furnace blower to interfere with the flame causing it to flutter or even roll out. Signs your furnace has a cracked heat exchanger the flame s appearance changes.

Beware of an unethical technician who finds a crack with a camera on a furnace that seems to be running just fine. This trips a safety switch and shuts down the furnace. When the external components show signs of either minor or significant wear. A heat exchanger acts as a collection station for combustible gas and allows the gas to make the air reach a boiling hot temperature.

This raises the amount of oxygen in the exhaust gases. Symptoms of a cracked heat exchanger.