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  1. #1
    Join Date
    Sep 2008
    Posts
    6

    Default How to work out if we share air ducting between apartments

    Sorry for the long post!

    I rent a second floor apartment in a 3 apartment house. We each have our own forced air furnace (oil) in the basement and my apt has 8 heat registers and one return (wall). I have tried tracing the ducting in the basement but cant really see if we share a main connector or not - or would it be more likely that we share ducting which is not visible in the basement?

    Sorry I realise this must sound like a strange question, the reason I ask is that I am having a potential secondhand smoke issue from the downstairs apartment and this is my first time living with a forced air furnace (I'm from a warm country originally which does not need a lot of heating so i dont know one end of a furnace from the other).

    My landlords who are great live downstairs and are smokers - I was not aware of this at the time I moved in (they were sick and not smoking) and I cant afford to move but am concerned because I have strong family history of lung and heart disease. I have done alot of work around the apartment sealing around pipes, doors etc.. to cut down on air transmission between our apt's but the one place I still get a stale smoke smell from is the heating ducts particularly on windy days. Occasionally last winter when i would first turn on the heat I would get quite a strong smoke smell, but not always (a previous tenant was a smoker many years before). I have cleaned all the registers which were full of dust and soot and have bought electrostatic filters to go on the outside of the vents for this winter (it says not use them on all vents unfortunately) - if we don't share air ducting it must be residual smoke left over from previous tennants and an old furnace which i can deal with by further cleaning and sealing, but if we share air ducts this is going to be an ongoing problem. I have tried to tactfully raise the issue of air transmission between apts, but they can't smell it and i don't want to offend them by being blunt particularly as it is their home.

    Any suggestions about what I can look for between our furnaces or things I could try to seal around the vents would be greatly appreciated.

    Thanks

  2. #2

    Default Re: How to work out if we share air ducting between apartments

    Tuff call, but its not to difficult if the owner will let you- you could use a smoke machine or try dry ice in water and let the smoke pull into the return in the opposing area and if it comes out in your zone then you are most likely connected.

  3. #3
    Join Date
    Sep 2008
    Posts
    6

    Default Re: How to work out if we share air ducting between apartments

    Thanks for the response. Tried to raise the issue again to no avail. I think it might be being compounded by the furnace being old and not efficient as when i switched it on yesterday for the oil guy got a strong smoky chemically smell coming out of the registers. Going to buy a carbon filter for the furnace and have got some register filters with carbon in them which may help cut down the smell and soot.

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