What causes blowback in wood stove?

A blow back occurs when the stove gets a “breath of fresh air” from a down draft or just an area of wood in the stove that is just about ready to flash over. When it ignites it sometimes will ignite the rich smoke in the stove quickly enough to increase the pressure within the stove.

How do you stop a wood stove Backdraft?

Try opening a window near the fireplace to increase airflow into the home before opening the fireplace door. The area will be exposed to more air, allowing for less to be immediately taken through the chimney. Also, consider using a fan or turning on exhaust fans to troubleshoot this problem.

How do you fix a downdraft in a wood stove?

It used to be called “downdraft”, and the quick fix was to “Add another 3 ft. length of flue, chop down the tree, or add an “H” top”. Today it’s called “negative pressure” and it’s what causes a smoking fireplace – and affects the quality of the air in the living space.

How do I stop the wind blowing down my stove pipe?

Place crumpled newspaper sheets as near the vent as you can and light them one at a time. This begins to heat the air in the pipe so that it starts to move upwards, pulling the inside air with it to the outside, instead of the reverse. Hold the paper with fireplace or other long tongs to avoid burning yourself.

Why is wind blowing down my chimney?

Sometimes wind noise is caused by wind blowing across the top of the chimney. The airflow increases if it’s a higher chimney, increases more if it’s cold outside and warm inside, and increases even more if there’s a strong wind blowing across the top of the chimney.

How do you stop a backdraft?

Most of the time, this is accomplished by cutting an opening in the roof and refraining from opening any windows or doors on or below the fire floor until conditions have changed. This means that no search and rescue can occur and no water is being put on the fire until the vertical ventilation can be completed.

What causes a backdraft?

A backdraft is caused by the sudden introduction of air into a fire that has depleted most of the available oxygen in a room or building. When a fire has depleted most of its oxygen, the flames will die down, but the fuel will still burn in a smoldering state and still generate heat, like with charcoal.

How do you deal with downdraft?

Fireplace Downdrafts: How to Fix and Prevent This Common Problem

The Basics of How Fireplaces Work. Fireplaces are designed to vent smoke outside the home to prevent CO buildup.
Check Your Flue Liner.
Inspect Chimney Height.
Burn Kiln Dried Firewood.
Turn Off Exhaust Vents.
Close the Windows.
Adjust the Damper.

Why does my wood stove keep blowing smoke?

If the wood stove is throwing back smoke when you try to light it, the problem could be the inside temperature. Usually, the inside is quite cold, and that happens because cold air comes down from the chimney and gets trapped in the stove. In this situation, you need to find out which way the flame goes.

What happens when you put wet wood on a wood stove?

Wet wood will always make more smoke and the water vapor slows the exhaust of smoke up the chimney. Don’t stack the wood close to the front of the stove. Burning the fire in the rear of the stove keeps the smoke flowing up the chimney.

Why does my wood stove keep backing up?

Once the fire is burning well, the airflow can be reduced to allow the wood to burn more slowly, but it should not smolder. Beginning with a hot fire will prevent excess amounts of creosote from building up in the stovepipe. Softer woods like aspen, birch and poplar burn more quickly and make good kindling.

Why is the inside of my wood stove cold?

Usually, the inside is quite cold, and that happens because cold air comes down from the chimney and gets trapped in the stove. In this situation, you need to find out which way the flame goes. If it is going upwards, you are good.