MAXAGEIVIEXT OF FUEXACES. 



47 



side. The boiler, or rather the grate, may be of any form desired, from 

 that of the annexed figm^e to the most ornamental, only taking care that 

 the parts round the fire be hollow so as to hold a sufficiency of "water. 

 The water for the supply of the boiler may be apphed from -without by the 

 aid of a small pipe and funnel. This plan would be admirably calculated 

 for heating the verandahs and balconies in front of town residences, in 

 which, dming summer, we see such a profusion of flowering plants, but 

 which, in winter, are entirely empt\' or occupied with a few of the hardiest 

 evergreens. If such balconies were fmnished with glass sashes, which 

 could be done at Httle expense, and these sashes fitted in about the end 

 of October, any greenhouse plant might be kept in a good' state of pre- 

 servation dming winter, and a sufficiency of heat admitted to them from 

 the di'awing room fire by the means just recommended. 



Of all these methods of heating by means of hot water, our opinion is 

 briefly thus : — that for ordinary purposes in greenhouses and stoves, 

 when the level chculation can be adopted, Atkinson's original method 

 is the best, and although, perhaps, not the cheapest in the first erection, is 

 unquestionably so in the end. 



When the circulation is to be carried over doors, or under foot paths, 

 or indeed out of a regular level, Kewley's siphon system is the most to be 

 preferred. 



And when the greatest possible degi'ee of heat is required and only a 

 Umited space for the apparatus, that of Perkin's is certainly the best. 



For heating small greenhouses, balconies, &c., from the fii-e used for 

 other domestic purposes, that of curator Anderson's is, in our opinion, the 

 most simple and efficient one. 



By any of these four methods a house, however situated, can be com- 

 pletely and economically heated. We have elsewhere stated om* opinion, 

 that for the ordinary- piurposes of greenhouses , it is scarcely worth while 

 erecting hot water apparatus at all, where smoke flues can be built cheaper 

 and without interfeiing with the internal arrangements of the house. 

 But for stoves and other forcing houses, where a higher degree of tem- 

 perature is required for three parts of the year, there can be no doubt of 

 the superiority of hot water over every other mode, both as regards 

 economy and convenience. 



DIRECTIOXS FOR THE MANAGEMENT OP HOT HOUSE FURNACES. 



The following excellent directions for the management of hot house 

 fire places, that are constructed with double doors and ash pit registers, 

 was drawn up some yeai's ago by that eminent architect, W. Atkuison, Esq. 



