The best way to prevent smells in a gas fireplace is to improve the quality of air in your home. If you smoke, take it outside. If you have pets, vacuum regularly and consider investing in a room air purifier. Avoid the use of harsh cleaning chemicals and plug-in deodorizers.
WHEN TO BE CONCERNED ABOUT GAS FIREPLACE ODORS
Air quality issues are the most common cause of strong gas fireplace odors. However, to rule out more dangerous possibilities, all you have to do is turn your fireplace off by shutting off the main gas valve. Allow some time for the room odors to clear out. If you still smell gas, there may be a small leak somewhere in your system.
