york diamond 90 furnace - minor rust issue

Old 02-25-19, 12:19 PM
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york diamond 90 furnace - minor rust issue

Absolute novice when it comes to this kind of thing..!.
Quick question regarding a York Diamond 90 furnace, >10 years old - works fine, however has a small bit of rust appearing on the top, around what looks like glue around where the pipe intersects the actual furnace.

Does this need sealing (with magic wrap or something like that) as a safety concern, or is that unnecessary and nothing to worry about?

thanks in advance
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