Furnace smells?
I have my thermostat low while people are gone during the day. When it kicks on the bring the temperature up the air smells similar to a space heater for a bit. The smell does not return when the furnace kicks on and off the remainder of the day while maintaining the warmer temperature.
I just replaced the filter thinking that could be part of the issue but it still smells. Any ideas? is this something I need a technician to come look at?