Work was dangerous and they could get jammed in the flue, suffocate or burn to death.

There were many deaths caused by accidents, frequently caused by the boy becoming jammed in the flue of a heated chimney, where they could suffocate or be burned to death.

The problem lay with the inverted siphon: the smoke had to pass through a cold flue ( which was set in the floor ) before the smoke could enter the chimney ; consequently, the smoke cooled too much and the stove did not have a good draft ..

Since the pollutants included metal vapour, the sweepings of the flue could also be recovered for resmelting.

If the combustion takes place using air as the oxygen source, the nitrogen can be added to the equation, as and although it does not react, to show the composition of the flue gas:

The presence of heat-damaged volcanic rocks and what appears to be a flue, support this interpretation.

Examples include the cantenna, which is typically constructed from a Pringles potato chip can, and RONJA, an optical link that can be made from a smoke flue and LEDs, with circuitry and instructions released under the GFDL.

One reason for this is the willingness of utility operators to install flue gas cleaning systems so that Bituminous Coal can be burned much cleaner than in decades past.

He built a second engine, with the assistance of the, later to be famous, Timothy Hackworth, his foreman smith, and his principal engine wright, Jonathan Forster, using the 1812 twin cylinder plan of John Blenkinsop and Matthew Murray and a return flue boiler.

The furnace can be situated at one end of a fire-tube which lengthens the path of the hot gases, thus augmenting the heating surface which can be further increased by making the gases reverse direction through a second parallel tube or a bundle of multiple tubes ( two-pass or return flue boiler ); alternatively the gases may be taken along the sides and then beneath the boiler through flues ( 3-pass boiler ).

Today's central heating systems have made chimney placement less critical, and the use of non-structural gas vent pipe allows a flue gas conduit to be installed around obstructions and through walls.

There can be cases of diminishing returns: if a stack is overly tall in relation to the heat being sent out of the stack, the flue gases may cool before reaching the top of the chimney.

As a " first guess " approximation, the following equation can be used to estimate the natural draught / draft flow rate by assuming that the molecular mass ( i. e., molecular weight ) of the flue gas and the external air are equal and that the frictional pressure and heat losses are negligible:

The flue would be as tall as the house and twist several times, and its dimensions would be 14in by 9in.

The common flue was designed to be one and a half bricks long by one brick wide, though the often narrowed to one brick square, that is by or less.

In a narrow flue, a bag of bricks and brushwood would be dropped down the chimney.

* The necessary extensive flue gas cleaning may be performed on the syngas instead of the much larger volume of flue gas after combustion.

Blast furnaces are to be contrasted with air furnaces ( such as reverberatory furnaces ), which were naturally aspirated, usually by the convection of hot gases in a chimney flue.

" These were old Tudor buildings, and a flue sketch of them can be seen in " Highways and Byways of Leicestershire.

The back of the box was to be placed a few inches away from the flue, or chimney.

This can be released into the natural environment through cooling towers, flue gas, or by other means.

For retrofit, additional supports may be added or it may be better to simply remove the extension and replace it with lighter materials, with special piping replacing the flue tile and a wood structure replacing the masonry.

He and his workers changed fireplaces by inserting bricks into the hearth to make the side walls angled and added a choke to the chimney to increase the speed of air going up the flue.

He envisaged instruments in which the French late-romantic full-organ sound should work integrally with the English and German romantic reed pipes, and with the classical Alsace Silbermann organ resources and baroque flue pipes, all in registers regulated ( by stops ) to access distinct voices in fugue or counterpoint capable of combination without loss of distinctness: different voices singing together in the same music.

The flue pipes of organs, which are acoustically similar to duct flutes, are blown by bellows or fans.

The heat for the house was initially obtained by running a flue from the nearby palm house but it was later equipped with its own boiler.

As with a number of woodwind instruments, the tin whistle's second and higher registers are achieved by increasing the air velocity into the ducted flue windway.

The kitchen became a much cleaner space with the advent of " cooking machines ", closed stoves made of iron plates and fired by wood and increasingly charcoal or coal, and that had flue pipes connected to the chimney.

Cotton declined after 1921, when the boll weevil arrived, but was already being replaced by flue cured tobacco as the primary money crop for farmers.

On June 6, 1888, a fire caused by a defective flue, wiped out nearly all of the business section of town.

There are several ways to circumvent this problem, typically by providing an economizer that heats the feed water, a combustion air heater in the hot flue gas exhaust path, or both.

The carbonic acid would damage a typical boiler by corroding the flue and fireside boiler heating surfaces.

Condensing boilers solve this problem by routing the carbonic acid down a drain and by making the flue exposed to the corrosive flue gas of stainless steel or PVC.

The third method is by simply using an induced draught fan ( ID fan ) which removes flue gases from the furnace and forces the exhaust gas up the stack.

Inert gas is produced on board crude oil carriers ( above 20000 tonnes ) by using either a flue gas system or by burning kerosene in a dedicated inert gas generator.

The flue gas is cleaned and cooled by the scrubber tower.

Buckingham Palace had one flue with 15 angles, with the flue narrowing to 9in by 9in.

Even so, boys rarely climbed chimneys before the Great Fire of London, when building regulations were put in place and the design of chimneys was altered, The new chimneys were often angular and narrow, and the usual dimension of the flue in domestic properties was by.

* A-is a hearth served by vertical flue, a horizontal flue, and then a vertical rise having two right-angled bends that were difficult for brushes.

* B-is a long straight flue ( 14in by 9in ) being climbed by a boy using back elbows and knees.

The products of combustion are carried off by means of a flue leading to the chimney, the inventor mentions it is particularly suitable for use on board ships.