Popping sounds from the home heating ducks.?

Question

How can I stop those annoying popping sounds coming from the heating ducks?
They happen when the furnace comes on and sometimes they wake us up!

Answer 1

I always thought ducks made quacking sounds!

Seriously though...

If you hear a pinging or popping sound coming from the ductwork, this may be caused by thermal expansion or by air blowing past a loose flap of metal. Track along the duct runs, listening for the sound. If you find it, make a small dent in the sheet metal to provide a more rigid surface that's less likely to move as it heats and cools.

Answer 2

If you didn't experience this problem before, it could be that your noise is caused by a problem called, "delayed-ignition" This is caused by too much gas being released into the furnace before ignition takes place. This results in a mini-explosion that causes the ductwork to pop. This is a potentially dangerous situatiion and should be dealt with ASAP. I have seen all of the ductwork blown off the basement ceiling onto the floor from the force of such an explosion.

Another possibility is that your tin-canning may be caused by a local problem rather than one that is systemic. In that case, you must locate the popping-source by examinng the system inch-by-inch until you locate the offending portions of ductwork and dampen them with stiffeners, blueboard, insulation, or whatever seems to do the job.

Good luck.

Answer 3

Great question!! The two ducts in my master bedroom & bath make this irritating noise for about 5-10 min. after the heater shuts off. No other ducts in the house do this. Glad to know I'm not alone & have an idea what to do about it. I have a mobile & my room is closest to the furnace.

Answer 4

It's caused by heat expansion and contraction (cooling) of the ductwork metal.
The best way is to find the culprit area and stuff some insulation around the duct (if you can get to it). If you can't (it's inside a wall) you might have to live with it unless you open up the wall, insulate the pipe and then patch it up and finish from there.

Good Luck!

Answer 5

is it poping or banging if the noise is contuinueios then the noise is dirty burners!if it happens only upon star of the blower and stops when it shuts off than it is streched duct .if so go to the furnace and put byour hand on the plenium [duct work connected to furnace] if the noise stops tape rigid insulation around the problem area. just keep moving your hand until u find the troble spot.if its poping than get fixed pronto!!!!!!!!!

Answer 6

the noise you hear can be caused by loose duct work or insufficient return air into the return air plenum check your filters and check all grills the be sure they are not covered if problem persist call your local heating cooling contractor they can solve any other problems fairly cheep
it does not sound like very extensive work
good luck

Answer 7

"Roof boost noise could nicely be led to by potential of the capacity released whilst the roof expands relative to its help and slipping stream happens on the purlins, clips or fasteners. The slipping differential is controlled by potential of the frictional forces between the roof cladding and its help, so as that surfaces that have a decrease coefficient of friction i.e. steel to steel might slip extra somewhat than steel to wood. whilst the frictional rigidity is surpassed and the steel roof cladding strikes, noise is heard and any extra desirable temperature boost will reason a boost of rigidity till the proscribing static friction factor is reached back and the cycle is repeated. At each and each cycle the thermal capacity is released unexpectedly and the better the friction rigidity the louder the noise." "This noise could nicely be decreased if boost can take place uniformly by potential of making use of sliding fixings or interposing a textile of low coefficient of friction (e.g. %noise tape) between the roof and its help." "the place the roof is rigidly fastened it somewhat is probable that the purlins can tend to rotate and this could additionally produce noise. whilst long length roof cladding is used, oversize holes or different perfect boost fixings are mandatory if noise is to be prevented." there are a number of different factors which will verify if a roof will produce undue noise and that they incorporate here: secret-restoration roofs the place the clip suits too tightly over the rib or is misaligned. Roof cladding it extremely is over-nailed. i.e. too many fasteners. Roof cladding it extremely is over-tightened. i.e. nailed or screwed too tightly. The 'ticking' or creaking noise heard whilst the solar is going in the back of a cloud is frequently led to by potential of steel against steel or on the fastener hollow. making use of metals with a severe value of boost. i.e. Aluminium. Gutters and valleys could desire to be loose to enhance and flow independently of the cladding and not have 'wings' which avert any stream. Crest fixing produces extra noise than pan fixing because of stream of the fastener on the shank hollow. inflexible framing and heavily spaced purlins will reason extra noise than a versatile shape. e.g. steel portal physique shape is extra versatile than laminated wood. whilst the insulation is placed difficult as much as steel cladding extra warmth is retained and the steel floor temperature will become greater than that of an uninsulated roof. darkish colored and unpainted weathered steel lined roof claddings take up extra warmth than gentle colored claddings.

Answer 8

I wish I knew, my son wakes up every night scared of the sounds!

Answer 9

"Huero" is right on the money Delayed ignition could be the problem plus , well i'm not going to rewrite what he said.