Indoor air pressure affects this air flow. The air inside your home pushes air up the chimney, like a vacuum. Good draft conditions allow vented smoke to travel up the chimney quickly, while poor draft conditions can cause smoke to billow back out into your home instead.
Why is my house filling with smoke from the fireplace?
The most likely reason that your house is filling with smoke when you light a fire is that the damper is closed. The damper should be fully opened when the fireplace is in use, and closed when it is not. All indoor fireplaces have a damper that must be opened before you light a fire in your fireplace.
How do I stop the fireplace from smoking in my house?
How To Keep Smoke From Coming Out Of A Fireplace
- Use A Fireplace Grate. …
- Build Fires Towards The Back Of The Fireplace. …
- Build Fires Using The Top-Down Method. …
- Burn Dry & Low Moisture Content Firewood. …
- Open The Damper Fully Before Each Fire. …
- Preheat The Chimney To Start The Draft. …
- Build Smaller, Hotter Fires.
Why does my fireplace make my house smell smokey?
A: The odor is from creosote. Your chimney may need cleaning. But it also could be that your chimney is having trouble drafting, due to creosote buildup or pressure imbalances within the house, rather than outdoors.
How do I improve my chimney draft?
How to Increase Draft in Your Chimney
- Start with a Hot, Fast Fire. Starting a cold wood stove with a hot, fast fire will get the draft going the quickest. …
- Burn Extremely Low Moisture Wood. …
- Improve Airflow Around the Fire. …
- Warm the Chimney Flue. …
- Provide Enough Air to Replace the Air That is Lost.
How do I stop my fireplace Backdraft?
How to Prevent Chimney Downdraft
- Shut Off Exhaust Fans: When your fireplace is in use, turn off your exhaust fans, as they naturally increase negative pressure by pulling air out of the house.
- Adjust Your Damper: If your damper is warped, you might need to adjust it slightly to get the right airflow.
Is fireplace smoke harmful?
Smoke may smell good, but it’s not good for you. The biggest health threat from smoke is from fine particles, also called fine particulate matter or PM2. 5. These microscopic particles can get into your eyes and respiratory system, where they may cause burning eyes, runny nose, and illnesses, such as bronchitis.
Why is the smoke not going up the chimney?
Smoke sometimes won’t go up a chimney because there is a column of cold air in the chimney flue that pushes the smoke back into the home. It’s important to check the draft before lighting a fire, to be sure priming isn’t needed.
What makes a chimney draw?
When a chimney is filled with hot gas, that gas tends to rise because it is less dense than the air outside the house. The rising hot gas creates a pressure difference called draft which draws combustion air into the appliance and expels the exhaust gas outside.
