[Jewelry making - Article 00487] - Re: [Orchid] I Attemped to build a ventlation system But...

[James Binnion]

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>        I had my furnace specialist install this for me.  He did
>     calculations so that there was no back draft to the furnace
>     (gas) and hot water tank (gas) in my basement. 

    For those of you who have gas fired heaters or water heaters
    this is very important. If the fan in your soldering hood is
    pushing more air out of your shop than there is fresh air coming
    in from the outside the fan will pull the air it needs backwards
    through the flues of the heater and water heaters.  This can
    fill your shop with carbon monoxide and other residue from the
    gas flames.  If you heat your shop or water with gas fired
    appliances please be careful with your exhaust fan design. 

Jim

http://www.mokume-gane.com
jbin AT well.com
James Binnion Metal Arts
4701 San Leandro St #18
Oakland, CA 94601
510-533-5108 

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