

n 



Tiie Horists' Review 



3VUX 27, l»l«. *-' 



ANTHRAGTC 

 and 



BITUMINOUS 



"' ^ r«r COAL write to 



HITCBELL & DnXQN 

 COAL CQ, 



Bedford Baildinf. CHICAGO 



W* can ••¥• y*n w a y . 



Mention The R«Tlew wban yon write. 



H. H. LINCAWEAVa & CO., Inc 



COAL 



Wait Bud Tnut BuildiBC. PHILADELPHIA 



, 17 Battery PImm. NEW TORK 

 ■rvtttnc Buildinc. LEBANON. PA. 



Meatton The Bgrlmrbea ywi -write. 



Creenhoase Heating. 



^^^^ 11 , I I II I 11 M 



COST OF COAL AND OIL. 



If saft coal costs $4.75 per ton in the 

 bin, what would crude oil have to be 

 bought for per gallon to give the same 

 amount of heat, dollar for dollar f If 

 you can give us a definite answer to 

 this question, we shall greatly appre- 

 ciate it. W. S. G.— la. 



The value of soft coal varies widely, 

 according to its quality and grade, but 

 with a fair quality of run-of-mine coal 

 selling at $4.75 per ton, we would not 

 consider crude oil worth more than 

 5 cents per gallon, even after making 

 allowance for the saving of labor in 

 firing and removing the ashes. 



BOILEB HAS ONLY ONE OUTUiT. 



I intend to heat with steam the two 

 houses shown on the enclosed sketch. 

 They run east and west. The ground 

 slopes downward to the north, and the 

 level of the 21-foot house is three feet 

 above that of the 36-foot house. The 

 north wall is of matched siding, cov- 

 ered with rubberoid roofing. There are 

 twenty inches of glass in the south 

 wall. The houses are not separated 

 by a partition. I should like to heat 

 them both to 50 degrees in zero weather. 

 I shall use an upright 18-horsepower 

 boiler, about three feet in diameter 

 and approximately ten feet high. The 

 g^tes are circular and about two and 

 one-half feet in diameter. It has been 

 operated as a high-pressure boiler. 



How would the returns be cut into 

 this kind of boiler and at what pressure 

 should it be heldf I intend to place 

 the boiler in a pit at the north-^est 

 comer of the houses and wish to know 

 how deep the pit should be. Kindly 

 state the size and number of the flows 

 and returns needed. The boiler has a 

 l^^-inch outlet. The 36-foot bouse is 

 already piped for hot water. It con- 

 tains a 2-inch flow on each side wall, 

 with two l^^-inch returns. There are 

 also two 1%-inch flows on each side of 

 the center, returning on the posts with 

 two 2-inch pipes. In all of this 

 piping there is a uniform rise for the 

 flows and a fall for the returns. 



P. P. S.— Pa. 



A low-pressure gravity system is gen- 

 erally used for small greenhouse ranges, 

 and for such a system the water level 

 of the boiler should be two to three feet 

 below the lowest part of the returns. 

 Unless this can be arranged, it will be 



^' «<*... /*■-» C»A . " * i.>>. 



::^'f:.^r''-:-f ■.':':, if,. 







WHEN YOU BUY-OCT A KROK8CHELL-THC BOILER OF GENUINE EFFICIENCY 



Every boiler made at our works is of the hiBhest standard. Material— coyemed 

 by Rroeschell s oeci flea tions— the beat that money and brains can produce. 

 Workmanship-the kind that is an inspiration to all other boiler makers. 

 Boiler eflSciency— determined by actual tests under working conditions. Boiler 

 ratings- honest and true blue— guaranteed actual working capacities. 



Probably ymi bav* WMKl«r«d why Mm Nf««*cb«ll ar««iili«iis« B«ll«r Is not sold by 

 ■ay off Um wt—rnktmn— constrvctlMi coipawlaa. In |a«tlc« to all caaearaad wa faal 

 K Is oar daty to stato that tha KraasehaH Ballar Is aavsr saM by aay 9m* bat- 

 TME KROetCHELL BRfS. CO.-Wa hava no asaato, and aa aar ptieas arc basad 

 an salaa diract fraai taetary to asar. wo da aat qaata aay ana daallas la bailora 

 s paclal raaala prlcaa. Oar otoad la thio aiatlar has brsaght aat a lat aff caaiastl- 

 Maa; aavarthalass, tba sraat afffflclanay af tha Nraaschall Oraoafcaaso Bollor 

 cannot ba diapatod, aad In spKa af tba haaa caaipatltlaa tha Kraoscholl Qrooa- 

 haasa Ballar Is haatlns BMra class tbaa aay athor aiaka. 



-BUY DIRECT- FACTORY TO USER PRICES- 



KROESCHELL BROS CO., 



444 WMt Kri« Str««t 

 CHICAfilO, ILL. 



