why when start running..the air is cold for like 5-7 seconds then hot...mi thermostat is 68 warm..is a ducane furnace natural gas...horizontal... also .whats the filter number...i been looking for filter but i not found it...if you can help me i really appreciate

Asked by mariano on 11/24/2014 0  Answer

ManualsOnline posted an answer 9 years, 11 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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