120 



The Florists' Review 



Septbmbku 1, li>21 



HOW ABOUT THAT NEW BOILER? 



YOU ARE SAVING MONEY IF YOU BUY A 



Wilks Self-Feeding Hot Water Boiler 



= BUILT FOR BEGINNERS = 



' It will stand between you and future 

 worry and unnecessary expense 



WILKS HOT >VATER BOILERS 



areinadeof the best quality of steel, strongly riveted and calked, with no cast-Irou 

 sections to crack. Our catalogue is yours for the asking. It tells all about our 

 heaters, shows their economy and gives a plan for heating a model greenhouse. 



S. WILKS MFG. CO., 3523 Shields Ave., CHICAGO, ILL. 



joining the hotbed and run three 1%- 

 inch returns along the wall, placing two 

 on the outer and the other on the inner 

 wall. Connect these returns with the 

 2% -inch pipe provided for the above. 



IMPROVING A SYSTEM. 



I have two greenhouses, each 18x54. 

 In one the side walls are built of stone 

 and in the other the sides and ends are 

 built of boards to a height of two feet, 

 with two feet of glass on top of 

 the boards. The walls are four feet 

 high. From the center to the ridge is 

 nine feet. I installed a Wilks hot water 

 boiler. No. 24x48, \aiii<fa[\. I have one 

 2-inch flow running to each house under 

 the ridge, with four l^^-inch returns on 

 each side wall. These houses did not 

 heat as they ought and I should like to 

 know if the boiler is too small, or do I 

 need a larger flow line? I should like 

 to heat the houses to 55 or 60 degrees 

 in zero weather. The boiler has 2-inch 

 openings and is placed in a pit about 

 fourteen inches deep, with an expansion 

 tank about six feet above the boiler. 



A. G.— Mo. 



It is stated that the boiler is "No. 

 24x48." If that means that the grate 

 is 24x48, the boiler is amply large. In 

 fact, two houses of the size described 

 have been heated with a boiler having a 

 grate twenty-five inches in diameter. 

 Doubtless part of the trouble comes 

 from using too small flow pipes. Another 

 source of difficulty is that the lower 

 returns are but little, if any, above the 

 grate, and the radiation is hardly suffi- 

 cient for even 55 degrees in zero weath- 

 er, unless a generator is used. It would 

 be preferable to use a 3-inch flow main 

 and a return main of the same size 

 leading to each house, but, if the open- 

 ings are only 2-inch, it would be advis- 

 able to use a 2% -inch flow to each 

 house, with a return of the same size, 

 locating the reducers close to the boiler. 



Inside the greenhouses use three 

 2-inch flows, placing the additional flow 

 pipes on the side walls. If fully 60 de- 

 grees is desired in zero weather, run an 

 additional 1%-inch return along the 

 exposed wall of each house. Unless the 

 lowest returns are above the level of 

 the grate, it would be wise to endeavor 



WHY TAKE CHANCES? 



EACH 



Why do you take chances of losing hun- 

 dreds, maybe thousands of dollars in crops? 

 That is just what you are doing if 

 you have no Standard Thermostat. 

 A freeze-out may completely ruin 

 your plants over night, or reduce 

 their value by hundreds of dollars. 



The Standard Thermostat will rine a 

 bell whenevr your greenhouse tem- 

 perature rises or falls to the danger 

 point. Place the bell at your bedside 

 or anywhere you please. 



This is a word to the wise— a buy 

 word to the wise grower. Sudden 

 tern peratureups and downs ruin thou- 

 sanis of plants every year. Protect 

 yours! Install a Standard Thermostat 

 now. It costs only $1S.0*. Write today. 



(G. H. 3. same as G. H. 4. only not in locked 

 case, $10.00.) 



Standard Thermometer Co. 



65 Shirley Street BOSTON, MASS. 



Mention The Review when you write. 



Pipe Fittings - Imico Boilers 



FOR GREENHOUSE WORK ■ 



ILLINOIS MALLEABLE IRON CO. 



1H01-1,S2.5 DIVKR.SEY BOULEVARD 



CHICAGO 



Mention The Review when you write. 



Our Hand Stoker 



IS A GOOD 171 #^0 1CTC 

 ONE FOR ri^V^IvlOlO 



AildifSB. 



FEDERAL HAND STOKERS 



71 W. Maple St. Cliicaeo, III. 



Cokal Hand Stokers 

 SAVE COAL 



Ask us to send our combustion engineer 

 COKAL STOKER CORPORATION 



1039 No. Clark St. CHICAGO. ILL. 



Phone Superior 7701 



to raise the coils, and, if this is not 

 possible, they may be arr.anged hori- 



TheKLINKERKUTTER 



I Shaking I Crate 



The KLINKER-KUTTER GRATE WORK.' 

 67 West Maple Street Chicago, 111. 



A GOOD BOOK FREE 



THE FISHER TRAP 



Write for ii— NOW 



Look for our ad In Sept. 8 issue 



FISHER GOVIRNOR CO. 



MARSHALLTOWN, ■ IOWA 



zontally. The increase in the number 

 of flow pipes will probably solve the 



