the existing chimney was used for this furnace and it is also used to vent the 40000 btu water heater. when the weather gets real cold it freezes up causing the furnace to stop. when i remove the vent cap the furnace works fine. i question if this furnace is installed right and can not get any help from the contractor. could you pleace help

Asked by Dennis on 02/19/2012 1  Answer

ManualsOnline posted an answer 12 years, 7 months ago

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