2006-10-14 08:40:16 · 9 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
Even 10 minutes after the furnace has turned off i still get this noise....it is almost like the duct work is expanding and contracting????
2006-10-14 08:45:59 · update #1
Well, you got it right and answered your own question. It is your duct work expanding and contracting. I'm guesing it's thin metal which expands with exposure to heat and contracts when the heat source is taken away.
2006-10-14 08:49:31 · answer #1 · answered by synchronicity915 6 · 0⤊ 0⤋
Metal expands when it gets hot and contracts when cooling this is probably what you hear nothing to worry about You say it is off so it cant be anything running or turning in the system
2006-10-15 11:54:59 · answer #2 · answered by Jack C 3 · 0⤊ 0⤋
It sounds like your duct work is expanding and contracting check to see that the intake air vents are not blocked
2006-10-14 16:38:39 · answer #3 · answered by Rich 5 · 0⤊ 0⤋
i would not bypass up there: installation cameras in the bathing room and kitchen may be the suited guess. in case you do not see something on tape after an prolonged time, call exterminator and say that there are rats in the attic, he could discover a individual or he ought to discover that your subject became an animal all alongside (verify he exams any crawlspaces etc.) or you ought to in basic terms take place the warmth on your vents each of ways and that's going to be glaring if there's a individual in there. or you homestead must be haunted, it extremely is extremely helpful to go out in case you think in that kind of element.
2016-10-16 04:52:21 · answer #4 · answered by Anonymous · 0⤊ 0⤋
If it was a recent install the ductwork may not be "cross-broke" or instulated properly. Either of those things can cause the ductwork to expand and "pop" or "bang" Have it checked out if it concerns you.
2006-10-15 12:03:21 · answer #5 · answered by Jessica 2 · 0⤊ 0⤋
You might want to inspect the ductwork for proper insulation around it .Could be some bare spots -- exposing it to the air -- causing this "banging"; Secure any loose ductwork.
2006-10-14 08:53:26 · answer #6 · answered by Spock 5 · 0⤊ 0⤋
It's cooling down
2006-10-14 08:49:23 · answer #7 · answered by KieKie 5 · 0⤊ 0⤋
fan hitting shroud! clean & balance!
2006-10-14 08:43:49 · answer #8 · answered by Bonno 6 · 0⤊ 0⤋
read your question and you will get your answer
2006-10-14 08:58:27 · answer #9 · answered by Anonymous · 0⤊ 0⤋