These problems include the inability to connect to Wi-Fi, 3G and/or Edge, lack of push notifications and issues with the YouTube application. Fortunately there are several fixes you can try to correct these data issues on your iPhone: 3.
Chimney soot is another contaminant resulting from incomplete combustion, and it forms when wood does not burn hot enough (less than 284 degrees). This powdery brown or black dust sticks to the inside of chimneys (sometimes escaping into the air) and carries a few risks similar to creosote, such as: Lung Hazard.
Evidence of this is the cold draft and smell you are experiencing. The fireplace damper is often the path of least resistance for air to enter the home. So if you run a kitchen vent fan or bathroom fan or anything else that exhaust air out of the house your home will start sucking air down the chimney. To fix this issue you can put in a chimney balloon low by the damper and that will seal the fireplace flue tight so the smell and draft cannot enter. I have used the clear balloons since they come in plenty of size variety. This should take care of the smell and cold draft in one shot.