QA

Question: How Does A Chimney Flue Work

Chimneys operate on the principle that hot air rises above cold air. The movement of hot gases rising from the fire creates a pressure difference between the inside of the flue and the room. This is called a “draught” and it forces air into the fireplace, this air feeds the flames as it rushes past the fire.

How do you know if your chimney flue is open?

• Feel for a Draft Before lighting a fire, you can tell if the damper is open by placing your hand into the fireplace. If you feel a draft coming down the chimney, it is a good indicator that the damper is open. If you don’t feel any cold air coming down the chimney, it means that the damper is closed.

Should chimney flue be open or closed?

The damper should always be fully open before lighting a fire and when the fireplace is in use. Close it when it’s not it use. Operating the fireplace with the damper partially closed will not generate more heat. Instead, blocking the passage through the flue will result in smoke entering the home.

What happens if you leave the chimney flue open?

The smoke from burning wood contains carbon monoxide, so in order to prevent this toxic byproduct from entering your home, it is important to leave the flue open overnight. This enables a draft to carry the compound out into the atmosphere, instead of sinking down the chimney and saturating the room.

What is the difference between a chimney flue and damper?

The flue is where the smoke escapes when the fire is going. Dampers are placed inside of the flue to help control ventilation. Your damper should have a chain or handle that you can access in order to open and close it.

Does closing the damper on a wood stove?

By opening the wood stove damper, it allows air to get into the chimney so the fire can start. If you keep the damper open, the fire will build and the smoke and soot will vent through your chimney. By closing the damper, it will reduce the oxygen levels in the chimney, and you’ll have a longer fire.

How do I know if my chimney flue is open?

Conduct a visual check. Lean in under your chimney just outside of your wood burning stove. You should find a metal device just within the chimney or flue opening. The damper is open if you can see through the damper up to your chimney. If you only see a metal plate, the damper is in a closed position.

When should I close the chimney flue?

Close Fireplace Damper When Fire Is Completely Out. Shut the damper when the fire is completely, absolutely out. That means ashes are cool to the touch even when stirred. If you close the damper before that, you risk carbon monoxide poisoning.

How do you close a chimney flue?

How to Close the Chimney Flue Turn off the gas to the fireplace or wait for wood to burn out. Put on work gloves to keep your hands free of soot. Push the lever up slightly to disengage it from its support tab and then pull it away from the tab horizontally as the damper lowers into a closed position.

Do chimney balloons work?

The plastic Chimney Balloons can be blown up manually and are inserted into the throat of the chimney. However, while they were easy to use, these widely-used inflatables don’t actually perform well in preventing air leaks and helping you maximise your home heating and cooling!Mar 26, 2019.

Can I Close glass doors on fireplace?

The doors should always be fully open or fully closed. Glass doors should be fully open when starting a fire and when the fire is burning strongly. The glass doors should be closed as the fire dies down to minimize the amount of room air going up the fireplace chimney.

How do I know if my damper is open or closed?

A visual check is one of the surest ways of checking whether the damper is open or not. Simply stick your head in the fireplace and look up. If you have a throat damper, the closed damper immediately above your head will block your vision. You should be able to reach up and touch the closed damper.

Should I close my chimney flue in the summer?

The chimney damper is the last line of defense to keep water and critters out of your home. Even if you have a chimney cap, it is a good idea to keep the damper closed in the summer. The hot, humid air that the damper lets into the chimney won’t air out chimney odors. It may actually cause your chimney to smell.

What is the lever on the side of my fireplace?

What is this? The second handle you may find in your fireplace (usually located on the left inside panel) is a control lever for the outside air kit. When burning your fireplace, the outside air kit lever should always be in the open (or up) position.

How do you open a flue?

Some open the flue by rotating a knob in the anticlockwise or clockwise direction, while others require you to pull or push to open the flue.

Can I use my fireplace without a damper?

Does My Chimney Have a Fireplace Damper? And while older wood-burning fireplaces can function safely without a damper (gas fireplaces cannot), a chimney without a damper is just a gaping hole in the roof of your house. It’s a gateway for frigid air to enter and for heated air to escape in the winter.

What is the metal piece on top of a chimney called?

A chimney crown, also known as a chimney wash, is a slab of cement that covers the top of the chimney. While the chimney cap covers the opening of the flue, the crown covers the whole top of the chimney. The crown prevents water from entering the chimney.

How do I start a fire in my fireplace without smoke?

Below are a number of tips that can help you start a fire with less smoke every time. Use the right firewood. Not all firewood is created equal. Open the damper. Avoid fires on windy days. Build a top down fire. Call a chimney sweep.