126 



The Florists' Review 



NOVEMBEB 20, 1919. 



we cannot give a direct answer regard- 

 ing the radiation required, the size of 

 the mains, or the required drop from 

 the returns to the water level in the 

 boiler. 



If the house is not more than 100 feet 

 long and if there is glass in all walls, we 

 should consider the two boilers of ample 

 capacity to heat the house when it is 30 

 degrees below zero outside; one of the 

 boilers would do the work in mild weath- 

 er. However, we should by far prefer 

 one boiler of twenty to twenty-five 

 horsepower, as the work of keeping up 

 steam would be materially lessened. 

 Careful attention to the firing of the 

 boilers will be necessary. 



By increasing the size of the mains 

 at the boilers to 2-inch and connecting 

 each of these with a 2%-inch main 

 leading to the greenhouse, satisfactory 

 results can be secured. 



We would run the 214-inch main 

 through the house three feet below the 

 ridge, and connect it with return coils 

 below the benches by means of 1^4 -inch 

 pipes. There should be sixteen li4-iiich 

 pipes in the four coils, with five or six 

 pipes in the coils under the outside beds 

 and two or three under each of the 

 beds in the middle of the house. 



If there is no glass in the north wall 

 one less return may be used under the 

 north bench. In case the house is only 

 fifty feet in length the main need not 

 be larger than 2-inch. 



When possible, it is desirable to have 

 the lower end of the return four feet 

 above the water level of the boiler, 

 but in short houses fairly good results 

 can be secured if there is a difference 

 of two feet, provided that the line of 

 the returns is carefully graded. In the 

 present case we would give the returns 

 about one inch of fall in fifteen feet and 

 would carry them one foot above the 

 level of the greenhouse floor at the low- 

 er end, if this does not bring the returns 

 within six inches of the bottom of the 

 benches at the highest point. Bottom 

 heat is helpful in growing most crops, 

 but when the pipes are less than one 

 foot from the bench bottoms, there is 

 great danger of the drying out of the 

 soil, which often results in serious harm 

 to the crops, unless more than usual at- 

 tention is given to the watering. The 

 surface may appear to be too wet, while 

 the soil at the bottom of the bench may 

 be dust-dry. 



PIPE 



Wrousht Iron of sound second-hand Quality 

 with new threads and couplinc. 16-ft. lengths 

 and up. Also pipe cut t« sketch. We guarantee 

 entire satisfactioa sr return ■oney. 



ALSO NEW PIPE AND FITTINGS 



Pfaff & tiaiM,,Sii!,1. Newark, N. J. 



Plant Insurance at $10 



Price, 



$10.00 



WHAT would happen if your night 

 man fell asleep some night in 

 zero weather? What if you should 

 oversleep, or a cold wave hit your green- 

 house when your heat is at the min- 

 imum? It would mean ruin to your 

 plants — possibly ruin to you. There 

 have been many such cases. 



But n*t if you are equipped with the 

 STANBMID THERMOSTAT. The 

 Standard--Therm*stat protects you 

 from just such dangers. It will ring a 

 bell at your bedside when danger is near. 



"I have one of your greenhouse ther- 

 mostats I have used 3 years. It has 

 proved so satisfactory I want another 

 for my new houses." — John Sharper, 

 Oxon Hill, Md., Jan. 6, 1919. 



Get one todmy, $10.00 



(G. H. 4, same as O. H. 3. only 

 under lock and key, $15.90.) 



STANDARD THEKHONETER CO. 



65 Shirl«y Str«et, 



BOSTON, MASS. 



GREENHOUSES 



WRITE FOR CATALOQUE OR ESTIMATE 

 Stat* Type of Construction You Want 



King Construction Co., Nortii Tonawanda, N. Y. 



Mention The BeTlew when you write. 



^IllllllllllllllllUllllllllllllllllllllllllllillU 



I HOW ABOUT your condensa- s 



S tion problem? s 



E Does slussisb circulation mak* E 



S the temperature hard to E 



5 control? E 



~ Then it's time to inyestigate the E 



I M^oxehead I 



I SYSXEIM I 



E Send for the "Morehead" book E 



E —a practical talk on the steam E 



E plant problem which has put E 



= many a florist on the road to E 



E better conditions — and surer E 



E profits. E 



i Drop a line AT ONCB. E 



i MOREHEAD MFG. CO. "ll E 



E Dcpt. "M" DETROIT. MICH. = 



S 800 E 



Siiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiir 



Mention The ReTlew when you write. 



DREER'S 



Florist Spoelaltloo 



New Brand New Style 

 "RIVERTON"HOSE 



Furnished in lengrthi up 

 to 600 feet without seam or 

 J«lnt. 



Tht HUE fir tht FLOIItT 



*4-inch p«rft.. 19 c 



Reel*fSOOft. " ISVic 

 2 reels. 1000 ft. " 18 c 



iginch '• 16 c 



Reel of BOO ft. " Vihc 

 ConpIlDiTS furnlshnd free 



HENRY A. RREER. 



714-716 Chestnut St. 



PRn.ADBLPHIA. Pa. 



Mention The Review when you write. 



WILKS SELF-FEEDING 

 HOT WATER BOILER 



For Economy, Durability, Dependability 



Install a WILKS 

 and forget your 

 troubles. 



No night fire- 

 man required— 

 as the magazine 

 or coal chamber 

 holds sufficient 

 fuel to keep fire 

 10 to 12 hours 

 without atten- 

 tion. Best made 

 for a small 

 greenhouse. 



Send for Catalogrue 

 and Prices 



Telephone 

 Tarda 866 



S. WILKS 

 MFG. CO. 



3523 Shields Ave.. 

 CHICAGO, ILL. 



Use Rippley's 



No. 200 Hot Water Heater 



in irreenboaseg, g&rttgM, hofr and 

 poultry houses, small bulldlngrs. 

 Louis J. Ii. Anioureaux, Norton, 

 Mass., says: "YoarNo. 200 Heater 

 cared for our greenhouse. 75x14x9 

 ft., last winter at 23 below zero." 



Mall orders direct. Write forclr- 

 calars of hvaterg and steamers. 



RIPPLEY MFG. CO. 



Box F, Grafton, IlUnoU 



Uention The Review when you write. 



