24 



THE AMATEUE S GREEXHOFSE 



of the top IS hollow, so that the flame of the burner is in 

 the centre of the water, thus economising the heat. The 

 foul air passes away by a pipe through the water, and after- 

 wards can be carried about the house as convenient, but must 

 not be carried horizontally, or there will be a likelihood of a 

 back draught. The pipe produces a considerable amount of 

 heat, and is no more objectionable than a common flue, hence 

 it may be used to heat the back wall, or run under a stage. 

 The heat from the stove itself is the same as any other hot- 

 water apparatus. The lid is perforated, and the moisture thus 

 obtained will counteract the dry heat from the pipe. There is 

 no escape of foul air whatever if properly set. Its simplicity 

 is one great recommendation wherever gas is available, as it is 

 the cleanest and least troublesome of any method of heating 



small greenhouses. 



'J'he subjoined sketch 

 may be accepted as a 

 plan which any skilled 

 workman may carry into 

 efi'ect without infring- 

 ing any one's patent, or 

 treading on anybody's 

 toes. 



The apparatus con- 

 sists of an iron or copper 

 boiler ( a ), through 

 which passes a hot-air 

 funnel (a). The boiler 

 is supplied by a small 

 pipe from an open cis- 

 tern in the house (b), 

 entering the boiler at 

 the bent arrow. The 

 heat is derived from a 

 small furnace formed ot 

 a circular hoop of iron 

 with a bottom of wire 

 gauze (f). The furnace 

 is fllled with lumps of 

 pumice stone, and is 

 supplied with a , gas 

 burner placed below the 



