A chimney that has a flue is a significant advantage for any home. The flue takes into consideration the comfortable solace of the warm hearth and fire for most homes. If you are a homeowner with a chimney flue, consider yourself lucky for good reasons.

 What Is A Chimney Flue?

Most people do not know what a flue is. A good way to think of a flue is an exhaust pipe. It transports smoke and ignition items securely outside. The fumes draft up the smokestack since it is warm and light, completing it up and off the fireplace utilizing the head of the stack impact.


Drafting can be misunderstood when talking, especially in the wrong context; football or airflow. The air climbing the smokestack works in a similar arrangement of physical standards as water streaming in a hose/line. When the chimney smokestack is full of hot air, it will get air through the firebox. This pulling impact is called a draft; compared to the measure of weight in a water hose – main contrast that the pneumatic (consider utilizing a straw to drink rather than blow bubbles). The stacks are negative weight frameworks.

Expanding the draft resembles opening the fixture more extensively on the hose. The easiest method to expand the draft is to burn the fire hotter – hot air is lighter, so it has more force. Another method is to expand the stature of your fireplace – aside from when the smokestack is tall that the frictional powers nullify the impact of the additional tallness. A similar measure of weight, a bigger line can convey a more prominent volume of water than the smaller one. the equivalent is valid for stacks – with a similar measure of the draft pressure a bigger vent will deplete more smoke from the chimney than a smaller one. Like how a water hose can wrinkle or stop, the wind stream in the fireplace can have a limitation that hinders the smoke streaming up the stack.

Poor flow in a chimney can result from: creosote stores, shut or stop dampers, improper construction, basic harm, or even grimy smokestack top. A stopped-up stack at the top resembles having a shit spout toward the finish of a hose – forestalling wind current through the smokestack.

Flue Liners

The flue liner (situated inside the smokestack) is the vertical passageway that moves the waste gas to the outside. Vent liners additionally increment a smokestack’s productivity and execution. A measured vent ought to be one inch wide for every ten square crawls of the chimney opening. This is a 10:1 proportion that empowers air to go at an ideal speed through the pipe.

If the flue is too large for the chimney, an excess of air will leave the smokestack and you will lose the heat. If the vent is too small, the air cannot leave the smokestack. Without the drawing of ignition air into the firebox, lighting a fire in an oven or chimney will be unimaginable. The home, stack, and chimney smokestack line cooperate to give ignition air to the chimney while venting the side-effect exhaust out of mischiefs way.

Our team is here to assist you with your chimney and flue. To guarantee the stack vent works appropriately, you need to have an annual chimney sweep and inspection, and a quality pipe liner. Guardian offers dependable and reasonable smokestack administrations.