^>i?; 



82 



The Weekly Fbrists' RevicwT 



/ 



Sxjm 1, 1911. 



MONTGOMERY COUNTY COAL CO. 



TAYl 



OOAL OP MnMT 



FISHBR BXJIUDrNG, CHICA.GK> 



MenOoD The Review when you write. 



SMITH, UNEAWEAVER& CO. 



COAL 



Aathnelte, Bltomlnoni, Coke and Gag Coal 



TrZ^nl^^, Philadelphia 



Mention The RcTlew when you write. 



Greenhouse Heating. 



WITH 4-INCH PIPE. 



Will you please give me some in- 

 formation in regard to the heating of 

 our greenhouse? How many feet of 

 4-inch hot -water pipe will be needed 

 to heat a house 26x100 to a tempera- 

 ture of 70 degrees in zero weather? 

 What size of boiler will be necessary? 

 We are located in southeastern Minne- 

 sota. B. H. M. 



If 4-inch pipe is to be used, it will 

 be well to put in about twelve. There 

 could be two flows and four returns 

 upon each side of the house, or they 

 could be distributed so that there 

 would be one flow and two returns in 

 each of four places. The boiler should 

 be able to handle 2,000 square feet of 

 radiating surface. 



IN CENTRAL TEXAS. 



I have a greenhouse 22x75 feet and 

 twelve feet to the ridge. The side 

 walls consist of three feet of wood and 

 two feet of glass. The house runs 

 south of east and north of east. I 

 expect to build two more houses, each 

 20x50, connected, and running west of 

 south and east of north. The new 

 houses will be about fourteen feet, or 

 perhaps less, from the present house. 

 Can all the houses be heated by the 

 same boiler, to a temperature of 50 

 degrees at night? We seldom have 

 zero weather here. I shall appreciate 

 it if you will give me some advice 

 about the piping, as I know nothing 

 about it. C. L. S. 



Under the conditions mentioned, 

 there should be no difficulty about 

 heating the new houses from the cen- 

 tral plant, provided the coils can be 

 at least as high as those in the present 

 house. If the boiler is sufficiently low, 

 it will be advisable to carry the flow 

 pipe from one house to the other in 

 an underground conduit. This could 

 be made of cement, or an 8-inch sewer 

 pipe could be used for the flow and 

 another pf the same size for the return. 

 The pipes themselves should be 3-inch 

 and should be covered with asbestos 

 packing. 



From the main flow and return pipes 

 a 2%-inch flow and a return of the 

 same size should lead to each house, 

 where they should connect with the 

 returns. If the boiler is not sufficiently 

 low to permit the running of the flow 

 pipe underground, it can be carried 



The New 



** Detroit'* Return Trap 



The only successful modifications in Tilting Traps made 

 in years have been embodied in the "Detroit." Improve- 

 ments in the design and construction of "Detroit" Traps 



have been made 

 possible by an- 

 other recently al- 

 lowed patent con- 

 trolled by this 

 company. 



K 



In writing for' 

 prices, a^i&e 

 number of square 

 feet of glass in your 

 houses, together 

 with horse- power 

 of boiler and steam 

 pressure carried. 



American BlowerGompany 



DETROIT. MICM. ■ ■ 



U. S. A. 



Mention The Review when yon write. 



IMICO 



Hot Water Boilers 



Mkde by 



lUINOIS MALLEABLE IRON CO. 



1801-1825 Diversey Boalevird 



CHICAGO 



Are noted for coal economy and 

 fl^ood reaolta genvruUj 



nCND rOR CATAIXKSUS 



HentioD The Review whenyou write. 



Black Gem Coal & Coke Co. 



OLD COLONY BUILDING. CHICAGO 



g^L^Vw''^ Black Gem Block 



Illinois, Indiana Lump, Hocking Lump, 

 Smokeless Coals. 



Write us— Tell us your needf— We will quote bargain price for immediate or summer delivery. 

 Lone Distance Ptaones, Harrison 962—1163. 



UendoD The Review when you write. 



HARRISBURQ-FRANKLIN COAL CO. 



1218 FISHER BLDQ., CHICAGO 



Greenhouse owners 6AJ|A^P| FCC O^AI ^" account of Its 

 appreciate our OlwlUIVtlHbwQ vUML superior quality. 



IF YOU PREFER OTHER GRADES. WE HAVE THEM 



