FARM LIGHTING AND HEATING 345 



314. Blau Gas Lights. Blau gas is an oil gas that is 

 liquified under high pressure. It is freed from all poisonous 

 gases and is practically non-explosive. It is sold in tubes 

 similar to presto-lite twenty pounds of gas to the tube. The 

 light produced by Blau gas is quite satisfactory and not pro- 

 hibitive in price. 



315. Farmhouse Heating. A well-heated house makes 

 for comfortable living. It has been only during rather recent 

 years that much development has been made in farmhouse 

 heating. Many progressive farmers are now installing sys- 

 tems of heating that will maintain an even temperature thru- 

 out the house, and provide an abundance of fresh air. Heat- 

 ing and ventilation go hand-in-hand. 



The modern heating system is located in the basement. It 

 keeps the litter and dirt from the main floors, which are diffi- 

 cult to keep clean when fuel and ashes are handled over them 

 in caring for a stove. 



316. The Hot- Air System. There are two types of hot- 

 air systems found on the market. One is the pipeless furnace, 

 which is essentially a special type of stove located in the base- 

 ment and surrounded by a jacket which carries the heat to 

 the rooms above. A down shaft is provided to keep the air in 

 circulation. This type of furnace can be easily installed in 

 any home already built that is provided with a basement or 

 cellar. The other type of hot-air plant is provided with large 

 pipes that carry the hot air direct to the various rooms. These 

 pipes, or "leaders", as they are sometimes called, must run as 

 direct to the rooms to be heated as possible, and they should 

 be wrapped with asbestos to prevent loss of heat. A house 

 can be heated more quickly with hot air than with water or 



