BASE-BtfRXING WATER-HEATER. 



77 



CHAPTER XIII. 



BASE-BURNING WATER-HEATER. 



For many years a great want has been felt for a better 

 means of heating green-houses, or rather conservatories, 

 attached to dwellings. The space to be heated is usually 



Fig. 2.2. BASE -BURNER. Fig. 23. SECTION. 



so small, that the ordinary hot-water boilers in use for 

 large operations have been found by amateurs too compli- 

 cated, and to require too much attention. Then when the 

 common smoke-flue was tried corresponding difficulties 



