A couple of years ago, we added two bedrooms in the basement of a 30 yr old double-wide modular home. A month ago I ran into my customer, and she asked me to check out something happening to the wall above the baseboard heaters.
There was a residue about 8" above the radiator that looks something like it looks if you hold a bic lighter against the wall: a whispy black trace of a flame. In addition, they couldn't wash it off. You could smudge it, but you couldn't get it all off the wall.
No other heaters in the house but the ones we installed leave this residue. They are all heated by the same boiler.
They tried to fix it by painting over it, but the residue reappeared. Just before I saw it, they replaced the old boiler with a new one, and painted the walls over -- again. They hoped their troubles were over.
I saw Nicole in the grocery store today. Guess what? It's back. Any ideas? I'm stymied.
There was a residue about 8" above the radiator that looks something like it looks if you hold a bic lighter against the wall: a whispy black trace of a flame. In addition, they couldn't wash it off. You could smudge it, but you couldn't get it all off the wall.
No other heaters in the house but the ones we installed leave this residue. They are all heated by the same boiler.
They tried to fix it by painting over it, but the residue reappeared. Just before I saw it, they replaced the old boiler with a new one, and painted the walls over -- again. They hoped their troubles were over.
I saw Nicole in the grocery store today. Guess what? It's back. Any ideas? I'm stymied.
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