Q: I read an article by you guys on water hammer and it prompted this note. While I don't have a problem with a noisy water pipe, I do have a problem with a noisy chimney. Some years ago, I replaced ...
Q. About four years ago, we had our furnace replaced with a new cast-iron oil-fired one, and it has worked well. Recently, we noticed that a thin layer of what looks like sand had accumulated on the ...