replace heater ducts??

[betty]

Hi, is replacing your whole heating ducts under your home an easy task? I have a 1973 home & the vents make sooo much noise & its driving me CRAZY!! From one of the previous owners; they put the yellow spray foam in the ducts, for what reason I don't know, but I don't know if thats what is expanding & contrasting soo much its causing all the noise or if it's something else?, I just bought the place a year ago & I'm having alot of problems SO I will be posting ALOT of questions.

[David Oxhandler]

hello betty and welcome to mobilehome.com

It sounds like the duct work in your home is not secure and vibrating. Are you or do you have a family member or friend that has handyman experience? If so follow the duct work under the home while the heater is on a causing the noise. Locate the exact spot where the problem/noise is coming from. Open the belly board or vapor barrier under that area with a razor knife. find or the spot that is vibrating and secure it. Metal Strapping and.... self tapping screws could eliminate the vibrations and aggravation.

If you are not handy find a reliable air conditioning contractor to locate and correct the problem

[betty]

Thank you, its making noise throughout the whole home, its worse in the living room but I hear it in all the rooms when it just turns off. I am intending to replace my bellyboard & all the insulation when it gets warm due to a moisture problem that caused mold & mildew on my board so while I had that open I was going to see what needed to be replaced &/or fixed. I really don't want to do that but I think with me being allergic to it, I need to get it out completely from the underneath & replace it.