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86 



The Weekly Fbrists' Review. 



Dbcbmbeb 28, 1911. 



SNniI,LfflEAWEAVER&CO. 



COAL 



Aafkrselte, Bltnmlaomi, Coke and Gm Goal 



rr^^.. Philadelphia 



Creenhouse Heating. 



ABOUT THE EXPANSION TANK. 



I wish to thank you for the informa- 

 tion you gave me about my boiler, but 

 I am in trouble again. Will you kindly 

 tell me whether, if I run two flow pipes 

 from the boiler in different directions, 

 it will be necessary to have two ex- 

 pansion tanks? I have a water tank 

 which is twenty-eight feet higher than 

 the top of the boiler, and the tank it- 

 self is twelve feet high; that is, count- 

 ing from the bottom of the tank to 

 the top of the boiler, there would be a 

 fall of twentj'-eight feet, in l^^-inch 

 pipe. The boiler is fed by %-inch pipe 

 from the 1%-inch pipe. Can I run the 

 two flow pipes in different directions 

 and use this tank? It holds 5,000 gal- 

 lons. J. H. N. 



While it will answer if an air-vent is 

 placed in one of the flow pipes and the 

 other is connected with the expansion 

 tank, the best way will l>e to run a pipe 

 from the highest point in each of the 

 flow pipes and, after connecting them, 

 run a l^^-inch pipe to the expansion 

 tank. There will be no objection what- 

 ever to using the large water tank as 

 the expansion tank for the system, but 

 care must be taken, of course, that the 

 expansion pipe does not freeze. 



A HOUSE WITH TWO PARTITIONS. 



1 intend to build a greenhouse, 20x 

 75 feet, running east and west, with 

 three feet of concrete and two feet of 

 side glass all around. The house will 

 measure twelve feet to the ridge and 

 will contain two partition^, which will 

 divide it into three rooms, each 20x25 

 feet. The land where 1 intend to build 

 has a fall of about eighteen inches from 

 east to west, in the length of the house. 

 1 should like to know what size of work- 

 room and boiler room to put up. There 

 is only a 3-foot fall to the ditch which 

 drains the land, so it will not be pos- 

 sible to have the boiler and coal under- 

 neath the house. I suppose the east 

 and highest point would be the best 

 place for the boiler, or on the north 

 side, in the center. I shall be thankful 

 for any advice as to how to run the 

 pipes, 80 that I can keep the east sec- 

 tion at 65 degrees, the central' section 

 about 60 degrees and the west one 

 about 50 degrees in zero weather. My 

 location is northeastern Illinois and 

 there will be no protection for the 

 house, as it stands in the open. E. P. 



It is generally preferable to build 

 the boiler house at the lower end of the 

 greenhouse, in order to secure a proper 

 return of the water. Whenever possible, 

 it is at the east end rather than at the 

 west end, and for houses less than lOO 

 feet long there is little occasion for 

 placing the boiler at the north side of 

 houses running east and west. In the 

 present case, if the house itself is built 

 on a level, the boiler room can still be 

 at the east end. The workroom and 



HOW MUCH 



does the temperatnie vary in 

 your greenhouses during the 

 night, or when you are absent? 

 What's that— you don't know? 

 Buy a 



STANDARD 



RECORDINB 



THERMOMETER 



and And out. It has saved hun- 

 dreds of dollars for many floriats 

 and may do as much for you. 

 Your plants and stock reaulre 

 certain steady temperatures. 

 Use this thermometer and you 

 will know whtsther they are get- 

 tinr what they need. It leaves 

 a written record under lock and 

 key. 



Send for Clroulars 



Standard Thennometer Co., 



(Snocessors to Parker Mf ■:. Co .) 

 66 Shirley St., BOSTON, MASS. 



Mention The Review when you write 



TkeUsm 



01 ne.... 



L 



Sncceaaoni to the 

 John Davis Company 



Hughson Regulating Valve 



are all satisfied with the results it has given . and many 

 duplicate orders is the proof. This Valve ttUI main* 

 tain a steady pressure on the low side, no matter 

 how the initial pressure fluctuates. By carrying 40 or 50 

 pounds pressure on the boiler and setting the valve to 

 carry 6 or 10 pounds on the line, you always-^mve a 

 reserve to fall back on in case of a sudden drop in tem- 

 perature. Our ne^e oatalosue is Just out and if 

 you contemplate making any cuanges you had better 

 get one— it is yours for the asking. 



We Also Blake Traps and Other Devices. 



HUGHSON STEAM SPECIALTY CO. 



5081-5028 8. State Street, CHICAGO 



Mention The Review when yon writs. 



COAL! 



BETTER TO SAVE COAL 

 THAN BUY IT CHEAP 



Ou Aitiutk Electric Ccideiutin Pinp 



SAVX8 80% TO 50% COAL,. 



Draws Water and Air out of the Heating 



System. 

 Returns Condensation Water to Boilers. 



Makes Heatlnc Uniform 

 8AVK8 LABOR 



Write for particulars. 



CHICAGO PUMP CO. 



1050 Fulton Street, CHICAGO, nx. 



Mention The Review when you write. 



IMICO 



Hot Water Boilers 



Made by 



ILLINOIS MALLEABLE IRON CO. 



180M825 Diversey Boulevard 



CHICAGO 



Are noted for coal economy and 

 l^od reaulta yenerallj 



SKND FOR CATALOGUK 



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