160 Of the Management of Fire 



the door so defended will last ten times longer than it 

 would last without this defence. 



The inside doors of the two brewhouse fire-places 

 which I have fitted up at Munich are both defended 

 from the heat in this manner ; and the contrivance, 

 which has answered perfectly all that was expected 

 from it, has not been found to be attended with any 

 inconvenience whatever. 



PLYTE III. 



Fig. 1 7 is a front view of the new boiler of the brew- 

 house called Neuheusel, or rather of its fire-place and 

 cover (the boiler being concealed in the brick-work). 

 The inside door of the fire-place is here represented 

 shut ; and, in order that it might appear, the outside 

 door is taken off its hinges, and is not shown. The 

 two vaulted galleries, A, B, in the solid mass of brick- 

 work, on the right and left of the fire-place (which were 

 made to save bricks), serve for holding firewood. The 

 partition walls of the fire-place and the different flues, 

 as also a section of the boiler, are represented by dotted 

 lines. The small circular hole on the left of the fire- 

 place door is the window opening into the fire-place, by 

 which the burnmg fuel may be seen. 



0, b, is the wooden curb of the boiler; c, d, a platform 

 on which the men stand when they work in emptying 

 the boiler, etc. ; e, f, is a platform which serves as a 

 passage from one side of the boiler to the other. This 

 platform, which is about 1 8 inches wide, is 1 2 inches 

 higher than the other platforms, in order that the open- 

 ings g and //, into the flues, may remain free. These 

 openings, which are opened only occasionally, that is 

 to say, when the flues want cleaning, are kept closed 



