410 FARMER'S ASSISTANT. 



constantly rushing: in to supply its place. Thus, while a 

 constant current i,f cold air is rushing in below, a like cur- 

 rent ot warm air is carried off into the apartments where it 

 is wanted. When any one of these is sufficiently filled with 

 warm air, the lubes leading into it are to be sloped in part, 

 or wholly, till more hea'.ed air is wanted. Ii would be most 

 advisable to let the heated air into each room in different 

 places, in order to distribute it more equally 



In a room warmed in the usual -way, about two-thirds of 

 the whole heat ot the fire passes out of the chimney. In 

 the mean time, all the air in .the room will also have passed 

 off in that direction in less than an hour, and ot course cold 

 air must rush in to supply its place. Thus the whole air 

 of . such room has to be heated over again once an hour, and 

 this is to be done with only a third of the heat afforded by 

 the fire. Now, according to the plan here recommended, 

 the air in a room would require a degree of heat equal to 

 Warming the whole over again, about once in six hours, as 

 the heated sir is not to be allowed to pass off out ot a chim- 

 ney ; and for this purpose of heating, at least two-thirds of 

 the heat of a smaller fire can be applied. Thus a room, to 

 be warmed in the common way, requires a fire which gives 

 twelve limes the quantity ot heat that is required in the 

 method above describtd. 



This heating-stove may be set in the kitchen ; but a cel- 

 lar-kitchen, or one lower than the dwelling-rooms, would 

 be best I* nmy also be set in a small building adjoining the 

 house; but let it be set lower than the rooms of the house. 



But, in order to render this complete, let the steam- 

 cooking, bking, and roasting apparatus be attached to it. 

 For this purpose, let the smoke, and the heat that goes 

 with it, pass out through a hole about four inches square, 

 made in the side of the sheet-iron, opposite the door ; and 

 let it be carried in a zisrzug manner, back and forward, un- 

 dc r i ho bottom of a boiler, made of sheet- iron, and this 

 will sufficiently heat the water in that to afford the requisite 

 degree of steam for the vessels used for cooking by steam, 

 as well as for heating water in adjoining wooden vessels of 

 different siz.-s, to be used for different purposes. The pipe 

 conducting off the smoke, Sec. after having passed tinder 

 every part of the bottom ot the boiler, is then to be carried 

 upwards, and pass round three sides of a small oven, made 

 of sheet-iron, which is to be used for baking and roasting. 

 The outside of the smoke pipe, and of the door of the oven, 

 should be thickly coated with powdered charcoal, in order 

 to prevent the heat passing off through the exterior surface, 

 until it shall have ascended above the oven. 



Thus, with one-half of the fuel used in a kitchen fire- 

 place, every room, in a house of moderate size, may be 



