I’m not an inspector but have noticed an issue with my gas heater so I hope you won’t mind me posting here about it.
I have an old Holly (like Williams) gas forced air wall furnace and recently I noticed a small pile of flakes in the vent at the top of the unit, below the blower. I assume this is probably the flue vent. The flakes are rusty on one side and sort of dull metallic silver-grey on the other and they instantly turn to dust when touched. There’s also a lot of dark colored dust around them.
Someone on another message board said he thought it sounded like the “silver paint” from the inside of the draft hood, which got me worried about lead content. But a little research led me to believe it would more likely be flakes of zinc based corrosion resistant coating. Does that sound more likely than paint?
Do you think lead content is anything to be worried about here? Their proximity to the intake blower is what concerns me since they are so light and dusty.God forbid if some lead dust got sucked in and blown all over my living room. BTW, I haven’t used the heater since discovering this.
Unfortunately, it looks like these Williams-type wall furnaces have no filter. I’d like to know what most likely origin of the flakes is and if they are anything to be concerned about. I can only guess at the age of the furnace but it looks '60’s.
Thanks in advance for any advice you can give.