220 



THE GARDENER'S ASSISTANT. 



behind the furnace. Another important feature 

 is its cheapness compared with other boilers, a 



Fig. 288.— Rochford Horizontal Tubular Boiler. 



Rochford boiler 9 feet 6 inches in length being 

 sufficient to heat 2000 feet of 4-inch pipe, the 



Fig. 287. 



cost of boiler with fittings being about £20. 

 Being of cast-iron it is very durable j it is easily 



Fig. 288.— Portable Boiler and Furnace. 

 a, Inner tube for fuel, b, AVrought welded Boiler, c, Ash-box. d, Round 

 smoke-flue, e/, Flow and return pipes, g, Sand rim and cover, h, Cast- 

 iron hopper, i. Ash-door and ventilator, k. Fire-door. 



worked, and, in the event of a tube giving way, 

 a new one can be substituted in a very short 



time, whereas a boiler of the ordinary type hav- 

 ing once given way is practically irreparable. 



The pipes fixed over the furnace in 

 all the different types of the "Roch- 

 ford " boilers are so placed that the 

 space between the lower two is cov- 

 ered by the pipe above, so there is no 

 fear of the fire missing any part. Fig. 

 287 shows how the joint between the 

 pipe and casting is made. 



The Portable Boiler and Furnace, 

 represented at fig. 288, is intended for 

 I > heating small structures. It requires 

 no brick-setting, has a neat appear- 

 ance, and may be placed in a small shed 

 or cellar adjoining the conservatory, 

 the smoke being carried outside by 

 the flue d. It is very rapid in its 

 action, and does not easily get out of 

 order. 

 Another portable boiler is Deards' Amateur 

 Champion Heating Apparatus, represented at 

 fig. 289. It is a slow- combustion stove, con- 

 taining a coiled pipe boiler similar in principle 

 to the centrifugal boiler already noticed. It 

 requires no fixing, being simply placed on a 



© W 



e 



Fig. 28 



-Deards' Amateur's Champion 

 Heating Apparatus. 



Fig. 290.— The " Manchester" 

 Boiler. 



stand of bricks. The body of the stove to 

 contain fuel is seen at a, b represents the 

 stoking door, c the ash-pit door, d the chimney, 

 and e the supply-pipe, the lower end of which 

 is fitted into a small pipe provided with tap 

 for emptying and cleaning the interior; / is 

 the flow and g the return pipe. For temporary 

 purposes, or to meet an emergency, such as a 

 breakdown in the permanent boiler, this is a 

 most useful boiler. 



Small Boilers. — Other small boilers made for 

 heating small houses or frames are the Im- 



