. Healthy houses : a handbook to the history, defects, and remedies of drainage, ventilation, warming, and kindred subjects : with estimates for the best systems in use, and upward of three hundred illustrations . 216 is shown the system recommended, during 1871, by anJ^ architect, Mr. Martin, in a report to the MassachusettsState Board of Health. The room is heated by astove surrounded by a jacket, which assists in heatingthe fresh air that pours into the opening under thestove through a large trunk under the floor. Thecold air from without is thus well warmed, and risesup within the stove ca
. Healthy houses : a handbook to the history, defects, and remedies of drainage, ventilation, warming, and kindred subjects : with estimates for the best systems in use, and upward of three hundred illustrations . 216 is shown the system recommended, during 1871, by anJ^ architect, Mr. Martin, in a report to the MassachusettsState Board of Health. The room is heated by astove surrounded by a jacket, which assists in heatingthe fresh air that pours into the opening under thestove through a large trunk under the floor. Thecold air from without is thus well warmed, and risesup within the stove casing to the top of the room,where it is spread along the ceiling, and then suckeddown by the action of the smaller ventilating trunks under the are connected with the chimney shaft, which, for the purpose ofheating the air and assisting the draught, contains the smoke pipe ofthe stove carried all the way up. The outflow of the air is regulatedby a valve across the shaft just behind the stove ; and should morefresh air be needed, the ceiling lights (shown raised in the plan) inviteits entrance. Dwelling-houses, however, can be perfectly ventilatedwithout the complicated systems here VENTILATION BY PT7MPS, EELLOWS, ETC. Mechanical ventilation of this sort is especially useful in well-digging, when a great depth, say 150 feet, has to be reached, and whenthe carbonic acid of the vrorkmens breath stagnates to such an extentat the shaft bottom that the men cannot work. Lime-water may cor-rect the evil somewhat, but it is wisest to give a supply of fresh airat once. A fan would be very useful here; but more than hand-power would be necessary to raise sufficient speed to render themachine effectual. There are several other methods of compassingwhat is to be done ; for instance, a pair of 21in. bellows, with l|, would work satisfactorily to a depth of 200 to 250 feet, and suchan appartus would cost about £10, exclusive of the piping. A veryuseful kind of
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Keywords: ., bookcentury1800, bookdecade1870, bookidhealthyhouse, bookyear1872
