. Ventilation for dwellings, rural schools and stables. tively small motive powerfor ventilation at times when thereis no fire in the furnace. It is true,however, that at such times the houseis more or less thrown open through doors and windows. Another method for direct heating and ventilation isrepresented in Fig, 43 where there is a central chimnev of First floor BasementFromfurnac e Fiir. 4\.>.;l oflieatinvr upixT roomund vtiitilatinjr Intothe attic. 100 Ventilation. brick, with flue lining, surrounded with a ventilating shaftmade of galvanized iron nailed directly to the stud
. Ventilation for dwellings, rural schools and stables. tively small motive powerfor ventilation at times when thereis no fire in the furnace. It is true,however, that at such times the houseis more or less thrown open through doors and windows. Another method for direct heating and ventilation isrepresented in Fig, 43 where there is a central chimnev of First floor BasementFromfurnac e Fiir. 4\.>.;l oflieatinvr upixT roomund vtiitilatinjr Intothe attic. 100 Ventilation. brick, with flue lining, surrounded with a ventilating shaftmade of galvanized iron nailed directly to the studding be-fore lathing. In this diagram four rooms directly adjoin-ing the chimney are represented as being ventilated at onefloor level. Distant rooms on the same floor may be con-nected with the same flue by leading a fouled air duct underthe floor cut into the ends of the joists under the partition,or in the space between two joists if they extend in theright direction. If it is so desired these ventilators may befinished in imitation of fire Fig. 48. —N entilating Hue of gaivanized iron surrounding- the chimney andutilizing the warmth of the smoke flue to force the draft in the ven-tilator. A flue lining is used inside the brick. If SO desired the ventilating flue may begin at the sec-ond floor or even at the attic floor when it is desired towarm the upper rooms with the exhaust air from the lowerones. Such a plan, however, cannot derive as much advan-tage from the warmth of the chimney. If it is desired to heat with either steam or with hotwater some system of ventilation should by all means be in-stalled at the same time and this can be done without dif-ficulty and without greatly increasing the cost as will bereadily seen from a study of Fig. 44. In this type ofhouse warming the radiators should be placed under thefresh air intakes where the warmed air will rise where thecold air enters and falls. When fresh air intakes are provided for each room to beoccupied a
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