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old burnham fans/vapor heaters

john_27
john_27 Member Posts: 195
in THE MAIN WALL
I have two large 1920's Burnham heat fans supplying air to a large first floor indirect system(see "Lost Art")...inside was a device to automatically supply tap water to the unit...as the steam tray inside the unit heats up, water vapor is supplied to the ducts....goes throught the indirects and out into the first floor....two questions......any risk of Legionaire Disease if we have water in them as intended, and....each unit had a solenoid gate valve on the return ....why didn't they use a broomell p fitting...john

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  • john_27
    john_27 Member Posts: 195


    sorry...units are actually bryant dualators...250k each
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