Home>Discussions>PLUMBING>Black on outside of hot water tank
2 posts / 0 new
Last post
mnhorbenko
Black on outside of hot water tank

The outside of my hot water tank is black above the opening to the pilot light. I have cleaned it off, but the black soot keeps on returning. How can I fix this and what is causing it?

Re: Black on outside of hot water tank

If it has any age on it it may be time for a new one the soot is from flame role out-you could have blocked flue or poorly vented flue-or you could have a bad valve or misadjusted gas pressure.
If it new it may be set up for LP but you may have natural gas or vise versa
If it is 10-15 years old it might be safer and more to your advantage to scrap it

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.