An attic hatch recessed can lights bathroom exhaust fans without baffle unsealed windows and air conditioning ducts coming out of ceiling are typical causes of the smelly problem.
Attic fan fireplace smell.
Every cubic foot of air that passes into the attic is one more cubic foot of air to heat and one less for your chimney.
A neighboring structure s height increase.
Stove range exhaust fans.
How to stop fireplace smells from stinking up the place during summer correction.
New furnace boiler and or water heater.
A change in your roofing ventilation attic fans.
Whatever the situation is you are still left with a smoke filled room.
Now place another fan in a window on the opposite side of the home.
In the basement the same problem can occur.
If you have the fireplace smell in your home like rob does finding the source of the negative pressure and reducing it should solve the problem.
Attic and or whole house fans always bring fireplace odor in when used.
The best way to get rid of this smoke is by placing a box fan in the same room as the fireplace.
When you turn on both fans this will pull out the smoky air while you are drawing in new fresh air.
You don t want to stop using bath fans range hoods and clothes dryers though so keeping the damper closed when the fireplace isn t being used should help.
New windows and or doors.