A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors. Historically the term flue meant the chimney itself. In the United States, they are also known as vents for boilers and as breeching for water heaters and modern furnaces. They usually operate by buoyancy, also known as the stack effect, or the combustion products may be 'induced' via a blower. As combustion products contain carbon monoxide and other dangerous compounds, proper 'draft', and admission of replacement air is imperative. Building codes, and other standards, regulate their materials, design, and installation.
Flues are adjustable and are designed to release noxious gases to the atmosphere. They often have the disadvantageous effect of releasing useful household heat to the atmosphere when not properly set—the very opposite of why the fire was lit in the first place.
Fireplaces are one of the biggest energy wasters when the flue is not used properly. This occurs when the flue is left open too wide after the fire is started. Known as convection, warm air from the house is pulled up the chimney, while cold air from outside is pulled into the house wherever it can enter, including around leaking windows and doors. Ideally, the flue should be open all the way when the fire is first started, and then adjusted toward closure as the fire burns until it is open just enough to slowly pull smoke from the fire up the chimney. After the flue heats up from the fire, they are easier to move, but also hotter. Hands should be protected when operating the flue lever; and if a new log is added to the fire, the flue must be adjusted again to ensure that smoke does not billow out into the house.
Flue may refer to:
People named Flue:
A flue pipe (also referred to as a labial pipe) is an organ pipe that produces sound through the vibration of air molecules, in the same manner as a recorder or a whistle. Air under pressure (called wind) is driven down a flue and against a sharp lip called a Labium, causing the column of air in the pipe to resonate at a frequency determined by the pipe length. (See wind instrument.) Thus, there are no moving parts in a flue pipe. This is in contrast to reed pipes, whose sound is driven by beating reeds, as in a clarinet. Flue pipes are common components of pipe organs.
Flue pipes include all stops of the "Principal", "Flute", and "String" classes, and some stops from the "Hybrid" class.
Flue pipes may be metallic or wooden. Metal pipes are usually circular in cross section; wooden pipes are usually square or rectangular, though triangular and round wooden pipes do exist.
A flue pipe has two major parts, a foot and a resonator. The foot is the bottom portion of the pipe, usually conical. At its base is the toe hole, through which wind enters it. The length of the foot does not affect the pipe's pitch, so organ builders vary the foot lengths of their flue pipes depending on other factors, including the desired shape of the pipes in the façade, the height of the rackboard in which the pipes are seated, and the weight of the completed pipe.
It's cold outside in the middle of the winter and my brain's in the fridge
(Would you know what shape I'm in)
Point things in the better I'm lucky if I even give in to the sin
(Would you know what shape I'm in)
And it's all been luck until now
Caught in the race of up to down
Photography mixed in the monogamy keepin' my world happenin'
(would you know what shape I'm in)
I know that I'm better when I know that you are better and I'll hold you again
(would you know what shape I'm in)
And its all been luck until now
Caught in the race of up to down
And it's all been luck until now
I only hope that you're still 'round me now
And it's gonna rage
it's gonna stay with you always
Every second counts on you to prove you're off the ground
It's cold outside in the middle of the winter and my brains in the fridge
Point things in the better I'm lucky if I even give in to the sin
And its all been luck until now
And its all been luck until now
And its all been luck until now
Caught in the race of up to down now
And its all been luck until now
Caught in the race of up to down
And it's all been luck until now
I only hope that you're still 'round me