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  1. #1
    Join Date
    Sep 2009
    Posts
    17

    Use the old air duct or get a new one?

    I bought an old house built in 1951. The heater needs to be replaced. There is no AC. I plan to get new heater/AC. The dust piled up inside of the air duct. I can see that asbestos dripping down the duct at least at one place. Should I clean the old duct and fix it where it is brokn? Or should I hire a professional abatement specialist to remove the old duct and put a new one? Which way will minimize the risk of the exposure of abestos for me and my family? Thanks.

  2. #2
    Join Date
    Nov 2007
    Location
    Texas
    Posts
    425
    I can see that asbestos dripping down the duct...


    I think you answered your own question. If saftey is an issue, always veer on the side of caution.

  3. #3
    Join Date
    Sep 2009
    Posts
    17
    But what is the caution? To take out the old duct or not to disturb it?

    Quote Originally Posted by hidalgo1301 View Post
    I can see that asbestos dripping down the duct...


    I think you answered your own question. If saftey is an issue, always veer on the side of caution.

  4. #4
    Join Date
    Nov 2008
    Location
    Ottawa Valley, Eastern Ontario, Canada
    Posts
    170
    Quote Originally Posted by jilli View Post
    I bought an old house built in 1951. The heater needs to be replaced. There is no AC. I plan to get new heater/AC. The dust piled up inside of the air duct. I can see that asbestos dripping down the duct at least at one place. Should I clean the old duct and fix it where it is brokn? Or should I hire a professional abatement specialist to remove the old duct and put a new one? Which way will minimize the risk of the exposure of abestos for me and my family? Thanks.
    Where do you see the asbestos?
    Is the ductwork wrapped in asbestos, or is it just on top of the ducts?

  5. #5
    Join Date
    Sep 2009
    Posts
    17
    I only see the drippings of asbestos outside of the duct which is connected to the heater. But other people told me that the duct is wrapped with asbestos.

    Quote Originally Posted by tinmandad View Post
    Where do you see the asbestos?
    Is the ductwork wrapped in asbestos, or is it just on top of the ducts?

  6. #6
    Join Date
    Aug 2009
    Location
    MT JULIET,TN
    Posts
    83
    If your not sure,don't disturb it.You need to have some1 qualified in asbestos abatement to come out & look at it to be sure.Its not worth the health risk involved.Not to mention the numerous codes you'll be violating,as well as fines that go along with them.
    Anything worth doing,is worth doing RIGHT the FIRST time around!!!

  7. #7
    Join Date
    Sep 2009
    Posts
    17
    Thanks. But my question is "to clean and fix the old duct and then use it or ask a specialist qualified in asbestos abatement to remove it and get a new duct.

    The specialist already told me that it is better to remove it and get a new duct to minimize the exposure risk. I would like to get a second opinion here.

    Quote Originally Posted by ZiLLaCooL View Post
    If your not sure,don't disturb it.You need to have some1 qualified in asbestos abatement to come out & look at it to be sure.Its not worth the health risk involved.Not to mention the numerous codes you'll be violating,as well as fines that go along with them.

  8. #8
    Join Date
    Dec 2007
    Location
    Cedar Grove, Wi-Sheboygan
    Posts
    1,582
    What you can do is take a sample of the material and send it into your local university who can then test it for you and let you know what you have and then you can determine which route you have to take in repairing or replacing what you have. Either way it's going to be alot of $$$$$ unless you decide to remove the material yourself, which IMO isn't the end of the world, spray it down with water wear protective suit and mask and place the contents in palstic bags, which is not different then a Asbestos company would do but will charge out the whazoo to remove this material.

    Have you checked around the duct work for water leaking anywhere? Could be theres water wither dripping up above ro somewhere downstream or upstream of where the damaged area is. I would first have the material tested before doing anything.

  9. #9
    Join Date
    Dec 2008
    Location
    VA
    Posts
    218
    most likely if you only had heat before your ducts are not properly sized for use with an a/c. I think if you pay to have them cleaned your still gonna have to have them replaced for your a/c so i would tear them out and start over

  10. #10
    Join Date
    Aug 2009
    Posts
    164
    If you're putting the money in to replace the furnace and add an a/c you might as well get the ductwork done while their in there. As mentioned earlier the ducts may not be properly sized for your new equipment and assuming that what you have is asbestos you need to get professionals to rip that out. Another benefit is that your ancient duct is probably leaking a lot of air and with a newer sealed duct that air will get to where it's meant to be.

  11. #11
    Join Date
    Oct 2009
    Location
    Murfreesboro, TN
    Posts
    108
    There is one more important step. Make sure you have the heat gain calculated for your home to size for the proper A/C unit. That will then determine the proper duct size to get the necessary air flow to each room. Only then can you determine if the existing duct system will work in part or at all. In all probability you will need all new ductwork, registers and return duct to get the proper air flow and not have any hot spots next summer.

    You should evaluate all the tax advantages and energy savings resulting from buying a 14 SEER or higher A/C system right now. Your utility provider may even offer an economical finance package if you get a system that meets the federal guidelines. Some states are giving rebates for Energy Star rated appliances purchased during the next year. Make sure you ask those kinds of questions from the contractor you pick to work with. If they can't answer them, or do a load calculation before they give you a quote you need to find another contractor.

  12. #12
    Join Date
    Nov 2009
    Posts
    37
    usually not alot of ductwork to be changed but if your getting full system mnight as well most jobs need a custom fit anyways

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