28 THE amateur's greenhouse 



a fireplace (a) closed in front with a regulator to ashpit door 

 to regulate the draught : b, flue pipe passing through the 

 outer base (c), and conducted out of the house at any conve- 

 nient part ; D, water space round the fire and flue pipe ; E, 

 return pipe for circulating the water ; r, small funnel or small 

 cistern for supplying the water. 



The general dimensions are as follows: — Fire-box, twelve 

 inches by sixteen inches ; outside pipe, six inches diameter , 

 inside flue pipe, three inches diameter, which leaves a space of 

 one and a half inch for water. 



The cost will vary according to size and length of house, &e. 

 The sketch represents a twenty-feet house, with apparatus 

 eighteen feet long. The cost of one of the dimensions given 

 will be about £5, made of strong galvanized iron. 



The advantages of this arrangement is the portability, with 

 the economy of fuel and equal distribution of heat along the 

 front of the house. 



In a large or extensive range of houses the pipes can be car- 

 ried in any direction, as any other hot-water applications, and 

 two or more fireplaces can be attached with the fireplace out- 

 side the building, or inside with an air pipe from without to 

 supply air to the fire if found injurious by taking it from the 

 inside of the house. 



The manufacturer is Mr. J. J. Carter, Peak Hill, Sydenham. 



The Thermostat-Thermosiphon, introduced to public notice 

 by our friend M. Sisley, of Lyons, may be considered as an in- 

 genious modification of Eiddell's slow combustion stove, and, 

 like it, is simply placed where it is to stand, and requires no 

 brick-setting. It is a peculiarly safe apparatus, the fuel and 

 flames being on all sides in contact with iron, which cannot 

 become excessively heated, because that is in contact with 

 water. Hence, this apparatus is well adapted to place in an 

 entrance-hall for heating the adjoining apartments, and per- 

 haps a greenhouse or conservatory not far removed. M. Sisley, 

 in describing it to us, says : 



" By stirring it once in the morning and once at night, we 

 could, by burning good coke, set light to the fire on the 1st of 

 October, and keep it burning to the 1st of May, at an expen- 

 diture of from 16 to 21; kilogrammes of coke every twenty -four 

 hours. 



" The apparatus could be placed in the same locality — that 

 is to say, in the plant house — destined to be heated, and its 



