Mechanical Contracting & Plumbing January-December 1909 . floor, and to four bedrooms and bath-room on the second floor. The outletssupplying air to the different rooms arebrought through the floors directly un-der the radiators, coming through pat-ented registers, which are of unusualconstruction. These registers are shaped like atrough with a plate covering contain-ing holes of varying sizes. (Through aninadvertence, these registers are drawnupside down in the plans). The holesnearest the centre are small and grow imparting to it some, though perhapsnot a great deal of humidity. This pro-vis
Mechanical Contracting & Plumbing January-December 1909 . floor, and to four bedrooms and bath-room on the second floor. The outletssupplying air to the different rooms arebrought through the floors directly un-der the radiators, coming through pat-ented registers, which are of unusualconstruction. These registers are shaped like atrough with a plate covering contain-ing holes of varying sizes. (Through aninadvertence, these registers are drawnupside down in the plans). The holesnearest the centre are small and grow imparting to it some, though perhapsnot a great deal of humidity. This pro-vision is shown on the sectional viewof the heating chamber, where a brass pipe is connected tothe water supply, the perforations, pinholes of the smallest size, being drilledand spaced j-in. apart and extending thefull width of the heating chamber in astraight line. From this pipe a constantStream of water trickles, forming apartial sheet through which the incom-ing cold air is forced to pass. That itaccomplishes its purpose is seen by the. Detail of Hot Air Supply under Radia-tor, Trough, Shaped, Register beingShown Upside Down. fact that the amount of dust in thehouse is unusually small, while the dan-ger of dampness is not apparent. The disposition of- the vent ducts isanother unique feature. The spaces be-tween the floor beams and the studs areutilized for this purpose. These ventducts are carried to a vent flue in oneof the chimneys, where the warm gasesof the chimney effectually prevent anyback draughts that might be caused bythe wind. As a further protection against theadmission of dust into the house theowner has adopted the ex] edient of As regards the cost of the plant, itwas in the neighborhood of $1814 orabout twice the cost of an ordinarydirect hot water heating system. Asoperated, however, its consumption often and a half tons of coal for theheating season is a remarkable showing,while the added comfort obtainedthrough its ventilating features counts
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