hi i need your advice on a problem that i am having with a armstrong furnace .i have a four story brownstone house, when heat comes up it only reaches the first and second floor.the the third and forth floor never gets heat .tthe heating system is only one year old and i still have a warrantty for it , however i am asking just
in case that when i call the contractor i can tell him my problems with this heating system.it is a ultra 80.
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