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Posted by Jon Halderman on December 31, 2005 at 18:22:54:
I am trying to find out when the United States Heating and cooling Mfg company of Columbus Ohio was in business. The home I purchased has a propane fired boiler made by them.The seller said it was 13 years old. The sevice man said it is thirty plus old. and has a cloged heat exchanger. Model number 9125TP.