134 



TheWcckly Florists' Review. 



Mabch 28, 1912. 



SliiniI,LINEilWEAVER&CO. 



COAL 



Aathraelto, BltaMlnoii, Coke ui4 Cba Ooal 



f^t'^^^,, Philadelphia 



Mention The Review when you write. 



Greenhouse Heating. 



SIZE OF SMOKESTACK. 



I have been using an old 16-inch 

 stack as a chimney for my boiler, but 

 it has rusted out, and I should like to 

 get your advice on the size of a new 

 chimney, to contain a suitable flue for 

 two boilers of the same size as my pres- 

 ent one, which is a Castle return 

 tubular, with a grate 36 x 42 inches 

 and a smoke hole 10 x 24 inches. The 

 old stack is twenty-two feet high and 

 has poor draft. What size and height 

 will be needed for the new smoke- 

 stack? A. L. B. 



The height of the smokestack will 

 depend to some extent upon the sur- 

 roundings, as it should be higher by 

 five to ten feet than the neighboring 

 buildings. Within certain limits, an 

 increase in the height will permit a re- 

 duction in the diameter of the stack. 

 For a return tubular boiler the stack 

 should be at least thirty feet high, and 

 thirty-five or forty feet would be bet- 

 ter. A diameter of eighteen inches 

 would be sufficient if the flue is thirty- 

 five feet high. 



QUANTITY OF FUEL. 



We have four houses, each 20 x 150, 

 with 3-foot sides, glass front and board- 

 ed back. The houses are well built and 

 tight. With a good hot water system, 

 what should be the temperature of 

 water at the boiler to keep the houses 

 at a temperature of 48 degrees, with 

 the thermometer registering 20 degrees 

 outside and no wind? Under such 

 weather conditions, about how many 

 pounds of coal should be required to 

 keep the water at the desired tempera- 

 ture during the night, using good stove 

 coal? About how many pounds of coal 

 and what temperature of water would 

 be necessary to secure the same results 

 on a night when the outside tempera- 

 ture is 10 degrees above zero? We are 

 located in New Jersey. 



W. C. P. & C. 



It is not possible to give a definite 

 answer to the questions as asked, as it 

 would depend upon various conditions, 

 such as the size of the boiler, the num- 

 ber and size of the flow and return 

 pipes and the character of the firing. 

 Thus, with a large boiler with a few 

 medium sized pipes, and an elevated 

 expansion tank or a closed system, the 

 water might be kept above 212 degrees 

 by heavy firing, while with a small 

 boiler and a large area of large pipes, 

 the temperature might be 100 degrees 

 or less, especially if the fires were not 

 pushed. 



If the radiation and boiler are prop- 

 erly adjusted to the size of the houses, 

 the boiler should have a rating of about 

 5,000 square feet, and each house 

 should be heated by three 2i^-inch flow 

 pipes and six 2-inch returns, except the 



WHICH SHALL IT BE? 



CAST IRON BOILERS-FOOL ECONOMY (false ratinge, fuel 

 waste, danger of breakdowns, dealers' profits), OR 



KROESCHELL BOILERS-FUEL ECONOMY (honest ratings, 

 eafety, quick heat, no boiler pits, no dealers' profits). 



THE KROESCHELL ai^v THE KROESCHELL 



Has Thin Water Ways. Vertical 

 Circulation, the Longest Firo 

 Travel, Heats Quick. Easy to 

 Clean, More Direct Surface 

 than any Other Boiler. 



NO SECTIONS, EASY TO SET 

 UP. Made of Boiler Plate. 

 Absolutely Safe, CANNOT 

 CRACK. 



NOT 

 CAST IRON 



NOT 



CAST 



IRON 



NOT 



CAST 



IRON 



Kroesdiell ^^^■^^^T' You can 



Boilers W^^^ depend 



Save > on a 



Fuel CAST IRON BOILERS WASTE FUEL Kroesdiell 



Ransre of Adam Laub & Son, HuKhsonville. N. Y. Their fetter speaks for itself. 



We purchased of you this spring a No. 6 Kro«Kchell Boiler, which you guaranteed would 

 take the plaoe of three cast iron boilers. Well, tlie whole thlngr In a nutahell Is this— your 

 word Is as jfood as Kold. Night before last we had a severe storm of 

 snow and sleet and a very high wind; we had not the least bit of 

 trouble. We fired the last at 10 p. m. Nov. 21, and the next morning 

 at 7.00 o'clock we looked at the houses and found It only 1 degree less 

 than when we flred the last poal, 9 hours earlier. If this Isn't mag- 

 nificent work and a good test, we would be pleased to hear from any- 

 one else that could furnish a ijetter boiler. 

 '^^k IX We know if parties wishing a boiler would 



^^m ^»^ get one from you they never would try any 



k ^•^ ^\ other. We think in five years' running of this 



— boiler we will have the price saved in the differ- 



ence in our coal bill. 



Wishing you the best of 

 suocess, we remain. 

 Very truly yours, 

 Adam Laub & Son, 

 Hughsonvllie, N. Y. 



.^,#-.0 



