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2^th March, 1885. 



Joseph J. Murphy, Esq., in the Chair 



William Workman, Esq., read a Paper on 



VENTILATION AND HEATING OF CHURCHES AND 

 DRYING ROOMS. 



Heating and ventilation are mostly in inverse ratio to one 

 another. If ventilation be good, heat is little, and draughts 

 great, coughs, both loud and deep, vie with the speaker for the 

 attention he should have, and never fail to get more than an 

 intelligent audience should give to inarticulate sound. If heat 

 be good, carbon acid rapidly accumulates, and heads nod more 

 familiarly than reverently towards him who desires their lively 

 attention. The problem to be solved may be thus stated : — How 

 to obtain air without coughs, and heat without headaches ; — or, 

 ventilation without draughts, and warmth without running it 

 to waste through ventilators. 



I suppose a church or assembly-room to be air-tight as buildings 

 go, that there be no ventilating openings except where indicated, 

 and that the seams of the ceiling, if sheeted with wood, be fairly 

 close and tight. At one end the heating apparatus is placed. 

 There is no reason why it should not be inside the building 

 instead of attached, should circumstances make that arrange- 

 ment desirable. To the heating chamber a flue leads to supply 

 fresh air. Opening below the level of the apparatus from it 

 ascends another close to the level of the ceiling, where it dis- 



