People's Pilot, Volume 4, Number 37, Rensselaer, Jasper County, 2 March 1895 — PLAN OF VENTILATION. [ARTICLE]

PLAN OF VENTILATION.

Thar of !\la*«acft SciiooU Sure to ll*» Kx r H«*n ’. The pian of vnlilat nf school houses in Massachusetts po >sesses, it is asserted, pos dbi.iti >s of insuring-first-cla s results, even when, froia certa'n unavoi lade obsticies, onlyone inlet is provi t *d, the -.a n • being located ab >ut eight feet ab >ve the floor, and as nearly as practicable in the center of th - warm or'inner side of tiic room. Of equal importance with tin; inlets is the si/,? of the outlets, or foul air ducts as well as their location, an I it is found that for a fift/-foot schoolrooom the outlet duet should have an area of n >t les-. than live square feet net. this to he placed at the bottom or inner side, in case the air is to be taken from the first story down t > the bottom of the foula r shaft in the basement. The rule is tli t in a r o:n with two cojd or exo ed sides the outb-t sh mi 1 be as near the pin *r <r warm itn-c!" of the r 'om as possible and. in a r ion with three - xpose I sides the outl et h mid be as near tiie inner or war n -l ie as practicable, this applying equa ly well whether th ■ warm air i-, pr night m through it her one or tw • inlets It is desirable that the ouoi > v of a r f oin the r. om through the cutlet, should be a little in es -e. of the amount brought in at t ic war a-air inlet, th* deference be ng male up by air dr wn into the ro n t.irmgn cracks and various small openings.