Next take off all the lids, and sweep all the soot carefully out; once or twice a week the flue pipe must be taken off and cleared out, also the flues under the oven.
The employment of close fires with brick fluesis also a frequent source of danger.
There are no flues to clean out; but the chimney, as high as one can reach and behind the register door, should be cleared from soot daily.
These lumps divide the furnace into two parts; those for the upper flues being placed above, and those for the ground flues below, which must be kept unobstructed.
When manyflues are conducted into one chimney stalk, the area of the latter should be nearly equal to the sum of the areas of the former, or at least of as many of them as shall be going simultaneously.
The apertures i i serve for occasionally cleaning out the flues h h, and are, at other times, shut with an iron plate.
The flame ascends spirally through the flues e, e, round the chest, which terminate in the chimney f.
In the partition f, which separates the two openings g g, and the flues h h, running round the pot, there is a circular space at the point marked with k, fig.
When large coppers have their bottoms planted in loam, so that the flame circulates in flues round their sides, they are said to be cold-set.
F F are the lateral flues for conveying the disengaged gases into the air.
The flues run straight through the clamp, and are filled with wood, coals, and breeze, pressed closely together.
Heating by hot air carried through brick or tile flues is the simplest and cheapest method for very small houses.
The second engineer received less wages, and his responsibility ended in standing his watch, handling the engines, and in keeping enough water in the boilers to prevent the flues from burning, as well as to avoid an explosion.
Ordinarily, an architect specifies that the brickwork shall be well slushed, and that the flues shall be well pargeted or plastered on the inside.
The flues should in all cases be built smooth on the inside, and all the joints should be filled full of mortar, the vertical joints as well as the bed joints.
This is a great error, as no flues should be plastered on the inside, and no walls having flues in them should be slushed, as the term is generally understood.
Chimney cap to be of bluestone in one piece, holes for flues cut in.
Thus all buildings erected with plastered flues are liable to burn at any time.
I have made a practice for a number of years of building flues without lining them, and then when the house is built, or as each story is erected, I put a dense smoke in the flue and close the opening at the top.
There are in this case three independent boilers, each worked by two furnaces communicating with the same system of flues; and in the curved flues B, fig.
It is evident that such tubes must be inefficient unless they are placed in the flues so near the furnace, that the temperature of the unburned gases shall be sufficiently high to produce their combustion.
By such means the temperature of the water in contact with those flues will be lowest at the place where the temperature of the heated air intended to act upon it is also lowest.
Small openings are also provided, closed by proper doors, by which access can be had to the under side of the flues between the foundation timbers of the engine for the purpose of cleaning them.
This is accomplished by constructing the flues so as to traverse the boiler backwards and forwards several times before they terminate [Pg448] in the chimney.
The grate and a part of the flues are rendered visible by the removal of a portion of the surrounding masonry in which the boiler is set.
Under the flues is the fire-place, or grate, containing six square feet of fuel in vivid combustion.
Air being a bad conductor of heat, to accomplish this it is necessary that the air in the flues should be exposed to as great an extent of surface in contact with the water as possible.
This process of corrosion in the flues takes place not less in copper than in iron boilers.
Pg270] The mouth of the tube by which the feed is introduced should be placed at that part of the boiler which is nearest the end of the flues which issue into the chimney.
The furnaces F communicate in pairs with the flues E, the air following the course through the flues represented by the arrows.
The oven is built into brickwork, and the hot gases circulate in the flues between the brickwork and the oven, and its erection and the arrangement of the heating flues are a bricklayer's job.
It has recently been obtained in comparatively large quantities from the dust of the flues leading to sulphuric acid chambers.
Thallium is found in the fine dust caused by the combustion of the pyrites, which dust deposits in the flues between the furnace and the chambers.
Yes; obstructed flues reduce the heating surface, reduce the steaming capacity of the engine, and, as a rule, result in causing the flues to leak.
The cold air drawn through the fire-box is hard on the sheets and flues and will cause them to leak.
The cooler water will go to the bottom and reduce the temperature in that part of the boiler and causing the flues to contract in length as well as in diameter and this has a tendency to pull them out of the sheet.
They also cause an increase of speed of the gases through the remaining flues and a poor steaming engine.
Does the stopping up of flues affect the steaming capacity of the engine?
Clean flues and grates working well make a vast difference in the success of a fireman, and a great many engine failures could be avoided by keeping the flues and grates in proper condition.
The best time to shake grates is when throttle is closed, as there is no exhaust to carry the unconsumed gases and sulphur through the flues into the front end, which is liable to choke or clog up netting and cause a steam failure.
Do you know that the engine should be working hard and at a speed not less than twenty miles per hour when sanding flues to avoid the sand falling to floor of the fire-box and accumulating in front of them?
A system of units located in large fluesthrough which the steam passes on its way from the dry pipe to the steam pipes, and a damper mechanism which controls the flow of gases through the large flues.
Leaky steam pipes, side seams, flues and improper combustion will produce a ruddy color in the fire-box.
It is necessary that the flues be cleaned of soot on leaving terminals or sidings where the engine has been at rest for any length of time, and also as often as found necessary to aid the engine in steaming.
It has a door and is composed of two side sheets, a crown sheet, a back sheet and a flue sheet from which the flues extend to the smoke-box at the other end of the boiler.
Such secondary combustion which takes place either within the setting after leaving the furnace or in the flues or stack always leads to a loss of efficiency and, in some instances, leads to overheating of the fluesand stack.
These figures are also good for square or rectangular steel flues with areas sufficiently large to provide against excessive frictional loss.
With circular steel flues of approximately the same size as the stacks, or reduced proportionally to the volume of gases they will handle, a convenient rule is to allow 0.
A sufficient amount of carbon monoxide in the gases may cause the action known as secondary combustion, by igniting or mingling with air after leaving the furnace or in the flues or stack.
Both steel and brickflues should be short and should have as near a circular or square cross section as possible.
Losses in Flues--The loss of draft in straight flues due to friction and inertia can be calculated approximately from formula (26), which was given for loss in stacks.
A new house and all,--nobody knows how the flues are yet, or whether we can heat a spare room.
Our new house was light and dry; the flues worked well, and the spare chamber heated admirably.
Choke the firebox with an excess of coal and the combustion is so incomplete that the flues are soon filled up and the grates are often burned out.
Some of the soot remains in the flues (the blood-vessels) and is deposited in the various parts of the engine (the body).
This can be compared with the process taking place in the flues of a boiler.
The flues cannot stand this, since they are thinner than the shell of the boiler and cool much more quickly; hence they will contract much faster than the rest of the boiler and something has to come loose.
Both will cause the sheets to warp and the flues to become leaky, because under high heat some parts of the boiler will expand more rapidly than others.
But if a boiler runs for a season or so and then the flues begin to leak, the chances are that it is due to the carelessness of the engineer.
One common cause of leaky flues is leaving the fire door open so that currents of cold air will rush in on the heated flues and cause them, or some other parts of the boiler, to contract too suddenly.
Great care should be taken not to expand the flues too much, for by so doing you are likely to loosen other flues and cause more leaks than you had in the first place.
Be very careful not to drive it in too far, for if you expand the flue too much, you will strain the flue sheet and cause other flues to leak.
Again, if the exhaust nozzle is too low down, the draft through the lower flues may be greater than through the upper.
His fuel is always making smoke, which soon clogs up the smoke flues and lessens the amount of steam he is getting.
Flues may also be made to leak by pumping cold water into the boiler when the water inside is too low; or pouring cold water into a hot boiler will do it.
Leaky fluesare made in this way, and the life of a boiler greatly shortened.
There should be no holes or dead places in this, for if there are any, cold air will short-circuit into the fire flues and cool off the boiler.
If your safety valve is in perfect order, you will know as soon as water begins to escape at the safety valve whether your flues are calked tight enough or not.
Some boilers have a tendency to draw the hot gases most rapidly through the upper flues, while the lower flues do not get their proportion of the heat.
Then examine the calked flues carefully, and if you see any seeping of water, use your beader lightly till the water stops.
This should be in contact with theflues for the escape of smoke, but separated from them by a thin brick partition.
The hot air in the smoke flues will warm the separating brick partition, and consequently rarefy the air in the ventilating flue.
No set rules can be given for caring for every boiler alike--chimney flues are not alike--some have strong draft, some are average and some are weak.
The failure of draft influes may be due to a variety of causes, one of which is illustrated in Fig.
The escape of the expelled air is made through vent flues especially constructed for the purpose.
Occupying as it does the space between the other two, it is kept warm by the heat of the other flues and the draft is thus increased.
In all cases flues should be made ample in size, as they must often do their maximum work under the poorest conditions for the production of good draft.
Such being the case, the dimensions of flues constructed for ventilation should be the subject of investigation.
The velocity of the air in the conductingflues will depend on two factors: the height of the flue, and the temperature of the air.
The flues used for the second floor produce, as in a chimney, a greater velocity of flow to the air and as a consequence larger horizontal pipes are used at the furnace.
Keep the boiler surfaces andflues clean; a crust of soot 1/4 inch in thickness causes the boiler to require half as much more fuel than when the surfaces are clean.
The sizes of registers and flues found satisfactory in practice is generally a guide for the designer.
Wall flues are commonly flattened and occupy a place in the wall between the studding.
Rules for proportioning of registers and conducting flues to suit rooms of various sizes are entirely empirical.
Draft ventilation produced by open windows, flues and chimneys is influenced by extremes of temperature and by the force and changing direction of the wind; it is, therefore, but imperfectly controlled.
Flues so tested frequently reveal very bad leaks into adjoining flues or directly through the walls or between the linings and the wall.
It is not good practice to place the linings of twoflues side by side.
The area of lined flues should be a tenth or more of that of the fireplace opening.
As the simple types require only galvanized Sheet metal bent at right angles, it is within the means and ability of many to supply themselves with flues of their own making.
Two or more otherwise good flues may be rendered inefficient if led into one cleanout, since air may be drawn from one into another and the draft in all affected.
If there is more than one flue in a chimney, the flues should be separated from each other by a division wall of brick at least 4 inches thick (see fig.
If the flues are unlined the proportion should be increased slightly because of greater friction.
The brickwork around all fireplaces and flues should be laid with cement mortar, as it is more resistant than lime mortar to the action of heat and flue gases.
Square flues are preferable to oblong so far as efficiency is concerned, but in the larger sizes of house flues the oblong shape is more generally used because it fits to better advantage into the plan of the house.
Round flues offer the least resistance to the passage of gases, but most residence flues are made either square or oblong for structural reasons.
The flues of each furnace are provided with dampers, which are closed during the process of clinkering in order to keep up the heat.
Important points in the design are the arrangement of the flues and flue outlets for the products of combustion, and the introduction of a blast duct through which air is forced into a closed ash-pit.
If chimneys were plastered on the outside, wherever they come in contact with the wood-work, the complaint of fires from defectiveflues would be hushed.
Hot-air flues in brick walls are sometimes tin-lined, though this is not necessary when they are smoothly plastered, providing it is possible to make them eight inches square.
All flues should be thoroughly plastered on the inside.
The foundations, walks, piers, and flues should be of hard burned brick.
There are three grates with independent flues in the three principal rooms on the first floor, and two grates with their flues on the second floor.
In case a grate on the second floor connects with the ash-pit, one of the flues at the side is used for this purpose.
The intervening part between the flues of a steamer's boiler.
The cylindrical appendages to the furnaces of a steam-ship: the funnel is fastened on the top of the steam-chest, where the flues for both boilers meet.
Adaptations at the ends of the water-passages between the flues of a steamer's boilers, by which the deposits can be raked out.
To get a final bit of proof, Lieutenant Flues took the gun camera photos to the photo lab.
Lieutenant Flues checked around, did a little experimenting, and found out that the small transmitter box on a radiosonde balloon will give an indication on the radar used in F-86 gun sights.
And none showed up when Lieutenant Rothstien's tour of active duty ended, when Lieutenant Andy Fluestransferred to the Alaskan Air Command, or when others left.
The good UFO reports that Lieutenant Flues had told me about when I called him from Washington had tripled in number before I got around to looking at them.
Both dryers connect by flues with an iron stack outside the building.
The parting walls between these cells were likewise perforated with flues which served to disseminate the heat all around the whole body of water.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "flues" in a variety of sentences. We hope that you will now be able to make sentences using this word.
