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Of suitable boilers there are several in the market, of many and varied designs. Simplicity of construction should be the guide to a selection. The boiler will perhaps its most conveniently placed in the stokery, and have be separate furnace and flue, any scheme for combining the heating of the hot rooms and of the water being out of the question.
The necessary appliances, and arrangements for the heating and ventilation of a bath on the ordinary hot-air principle comprise a furnace in its chamber, with flues or shafts supplying cold, and drawing off the heated air, and a stokery with provisions for firing and storing coke, &c.
The bath rooms are lined with glazed brickwork. The floor is of fireproof, iron and concrete, construction. Enamelled iron sheets are screwed to the ceiling joists in the hot rooms, and pugging placed over. Under the laconicum is the stokery and furnace chamber, fitted with a small convoluted stove, a hot-air shaft leading to the bath room.
If there were no available supply of water from house, a boiler and tank could be placed in the stokery, and a cistern on the flat roof. The flat roof, if of iron and concrete, would form an abutment to dome. If thought desirable, the same flat roof could be carried over the combined tepidarium and lavatorium.
Plenty of space is left for a bench or chair in this chamber. Adjoining is the laconicum with a firebrick furnace, after the nature of that of which I have before given full detailed drawings. The vitiated air is drawn through flues in the floor, to a shaft on the opposite side to the chimney. The stokery and coke-store adjoin the laconicum.
In the separate accommodation for attendants and shampooers the same caution must be observed. Adjoining, under, or partly under, the laconicum must be placed the heating apparatus in its chamber, with stokery and provision for fuel, &c. The stokery should be large, light, and properly ventilated, and the attendants should be able easily to communicate with the stoker.
If an "expansion" joint were provided, there would be a sufficient length of iron pipe if it passed direct from the junction with the heating apparatus into the stokery. So much of the iron flue as is in the laconicum must be coated with asbestos or some composition, or the heating will not be wholly by firebrick.
Too often the stokery is unscrupulously cramped, and the life of the stoker thereby rendered anything but pleasant. Its design is a simple matter, and perhaps for this reason neglected. The arrangement and construction of the furnace chamber requires care, and the selection of a stove or furnace great judgment.
It will be seen, upon reference to the plans, that the block of flues and air spaces is left quite free, to allow of any expansion, the connection with the smoke-shaft being by means of an iron flue-pipe, which, being provided in considerable length before passing through the party-wall of laconicum and stokery, by its flexible nature permits any slight movement in a vertical direction.
A washing room, shower bath, and plunge bath adjoin the shampooing rooms. The hottest rooms of both sets of these baths are within a few feet of each other. Each, however, has its separate and distinct furnace. A passage formed by the area allows access to the stokery and furnace chambers. In Messrs.
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