How to report on this...

[Jason C. Boni]

I don't even know where to start with this one. This picture is inside of a furnace with an older concentric type heat exchanger. Is the corrosion of the 'flame diverter/expander plate' detrimental to the operation or efficiency of the furnace. Anybody seen this before? Any help is appreciated. Thanks.

[Michael J. Merino]

Originally Posted by jboni

I don't even know where to start with this one. This picture is inside of a furnace with an older concentric type heat exchanger. Is the corrosion of the 'flame diverter/expander plate' detrimental to the operation or efficiency of the furnace. Anybody seen this before? Any help is appreciated. Thanks.

IMO I think it would be detrimental. Otherwise the heat is concentrated in one area and mixes with cooler air reducing the heating ability.

[Darren Spencer]

Recommend to client to take advantage of tax credit and get a new furnace!

[Wayne B. Wilson]

Just state all furnaces require service for safe operation , And you do not see any evidence of service. service recommended. Excessive dirt noted in the chamber. How old was it? did you take a co test?
The flame does not look good in the picture

[Bob Elliott]

Simply a bad gas /air mix.
Recommend an HVAC guy take a look and be done with it.
He can check the exchanger.

I am guessing that if you pounded on the flue pipe there was lots of debris and maybe even streaking viewed at the seams from condensation.