Account of Mr. S. Sweetser^s Green-house. 



3 



without reflecting- that there is more difference than we at 

 first imagine. But tlie information which is daily increasing 

 upon this subject, will soon lead to a more judicious con- 

 struction of such edifices. 



The heating- of such structures by hot water is an impor- 

 tant feature in their management. In fact, without this sys- 

 tem is adopted, we do not believe a house, whatever its di- 

 mensions may be, can be left with safety during the night; 

 the variation of the temperature in our long winter nights is 

 often so great, that, frequently when it can hardly be supposed 

 that £t fire is requisite at night, before sunrise the thermom- 

 eter has fallen below zero ; in such instances, unless fuel is 

 supplied to the common brick flue all night, the plants will be 

 in danger of being frozen ; if, however, the hot water sys- 

 tem is adopted, the house will be found nearly at the same 

 temperature in the morning that it was left the evening pre- 

 vious. So great are its merits, and so superior to any other 

 method do we believe it to be, that no hot-house, green- 

 house, or grapery, will be erected hereafter, but what will 

 be heated by hot water. But we proceed to give the follow- 

 ing details of the house erected by Mr. Sweetser, and hav- 

 ing done this, several facts in relation to the hot water 

 system, which have fallen under his observation, will be 

 added. 



The house {figs. 1 and 2), is thirty feet long and sixteen 

 feet in width, measuring from the outside ; and fourteen 

 feet and a half wide inside, measuring from the front 

 to back. The fur- ^....^ 



nace, or head of 

 the flue(a), is three 

 feet from front to 

 back, two and a 

 half wide, and 

 three deep ; the 

 door into which 

 the fuel is intro- 

 duced, opens into 

 an end shed (6, in 

 the ground plan), 

 and is ten inches 

 by thirteen. The^B 

 flue from the fur- 

 nace runs under 

 the centre walk(c), 



the length of the house, and is carried into the chimney at 

 the opposite corner inside (d). The hot water pipes proceed 

 from the boiler to the corner of the house, and across the 

 front, to the reservoir at the other end (e) . The flue is built 



16 feet 



