Heating, Ventilation and Lighting 



201 



With the above no calculation has been made in connection with allowances 

 for combustion of air by lights. One jet in a room is hardly worth considering, 

 but in the case of a four jet light it may be well worth the while. 



Following is the rough table of calculations for heating and ventilating the 

 small house shown in plans: 



The conditions assumed are as follows, viz.: Hot water at 140 F., 

 external temperature at zero F., desired temperature at 70 F., each person 

 allowed 1,800 cubic feet of air per hour, basis of brick walls (allow for wood if 

 desirable), cold winds from the north, hot-water heat, indirect for parlour and 

 dining room, direct-indirect for chamber and bath, and direct for rest of house. 

 Natural draught, as such basis will cover the conditions of forced draught. 



The above system of heating and ventilating could be installed for about $650. 



The lighting of the country house, which offers such delightful chances for 

 the display of taste, is usually slighted. By this it is not meant that not enough 

 light is provided, but that the choice of it, as adapted to various uses, is hardly 

 ever considered. Every room receives the same glaring treatment a flood of light 

 calculated to destroy the effect of the interior and everything it contains. 



It should be remembered that it is not always desirable, in fact it is generally 

 better not, to have a bright light in the home. There are cases when, as in 

 reading, sewing or cleverly locating a fishbone, the light should be powerful 

 enough to answer the purpose, but on the other hand every opportunity should be 

 taken to subdue the light when not actually needed at full power, so that the 



