^ 



132 



The Florists' Review 



Mat 12. 1921 



Greenhouse Heating 



Subscribers are invited to write the 

 editor of this department with regard to 

 any details of greenhouse heating that 

 are not understood. When information 

 ia desired regarding the capacity of boil- 

 ers, or the amount of radiation required 

 for a greenhouse, the needed temperatures 

 should be stated in the inquiry, as well 

 aa the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often help- 

 ful, also, to have a sketch showing the 

 location of the houses. 



CHOOSING THE PIPES. 



We have a greenhouse, 26x100 feet, 

 with 6-foot sides, in which there are 

 twenty-eight inches of glass. It is pro- 

 tected on the nortli end by the service 

 building, while the south gable is of 

 glass. We have 3-inch boiler flues and 

 will have solid beds. Tliere will be a 

 line of purlin supports down the center. 

 The sashbars on each side will be fif- 

 teen feet long. It will be thirteen or 

 fourteen feet from the ground to the 

 ridge. 



How large a boiler will be needed to 

 heat this house to a temperature of 50 

 degrees, with zero weather 'outside? 

 H. W. A.— N. Y. 



To heat a greenhouse of the size de- 

 scribed to 50 degrees when it is zero 

 weather outside, it would be well to use 

 a boiler with a grate about twenty- 

 seven inches in diameter, if soft coal 

 is to be burned. While it would be 

 preferable to use three 2i/(>-inch flow 

 pipes and ten 2-inch returns, good re- 

 sults may be secured by using 3-inch 

 boiler tubes for botli flows and returns. 

 Use three flow pipes, locating one on 

 each wall plate and the other on the 

 posts, four feet below the ridge. For 

 the returns, use nine pipes. No definite 

 suggestions can be made without know- 

 ing how the beds are arranged. Two or 

 three of the returns may be upon eacli 

 side wall, and the others in the walks 

 or on the sides of the beds, according to 

 the way the walks ana beds are ar- 

 ranged. 



FOR RANGE AND LEAN-TO. 



We liave water i)0wer enough to run 

 a large generator. Can you advise as 

 to a firm that manufactures that sort 

 of outfit? Can a common boiler be 

 changed so as to heat and make steam 

 by electricity? Send me the name of 

 an engineer wlio can figure the size and 

 power of generators. 



What is the 'liest arrangement of 

 steam pipes for a r.'uige of greenhouses, 

 176 feet long, having two sections, each 

 thirty-six feet wide, and a lean-to on 

 the nortli side twenty-seven feet wide. 

 The soutli wall has seven feet of glass. 

 The boiler room is in the northeast cor- 

 ner, as part of the lean-to. What dis- 

 tance from the ground should the pipes 

 be put, and how many sliould be used? 

 At this time I h.Tve li/^-incli ])ipes as 

 distributors and 2-inch pipes as feeds. 



D. R. G.— Neb. 



Considering the cost of installing a 

 generator and electri;>al heating de- 

 vices, it is doubtful if it will be feasible 

 to make use of the water power for 

 either of tlie metlio(ls of he;i1ing the 

 greenhouses suggcslrd ,■^l)o^•('. 



WHICH SHALL IT BE ? 



CAST IRON BOILERS- FOOL ECONOMY (false ratings, fuel waste, dan- 

 ger of breakdowns by cracking of sections, dealers' commissions on sales)— OR 



KROESCHELL BOILERS-FUEL ECONOMY (honest and "true blue" boiler 

 ratings, safety, quick heat, factory-to-user prices). 



Kroeschell Replaces 4 Cast Iron Boilers 



PreviouB to 1909. Mr. Schultz. of Menominefi, Mich., heated his entire plant 

 with cast Iron boiler.s. It had been claimed that cast iron boilers are superior to 

 the Kroe.schell. Mr. Schultz is now heating 18.000 sq. ft. of glass with the 

 Kroeschell which was installed in 1909, and they are required to fire same only 

 twice a night. The following letter speaks for Itself: 



"We do not have the least trouble to maintain about 60 degrees in the coldest 

 weather. Your KroeKthell Boiler is the best I ever had. Before I heard about your 

 boiler I had four oast iron boilers, and I would not part with tlM Kroeschell for a 

 hundred cast h-on l>oilers now." (Signed) CHARUBS SCHULTZ. 



July 21, 1013, Menominee, Mich, 



Kroeschell Replaces 2 Cast Iron Boilers 



The Marysville Floral Co., of Marysville, O., installed a No. 4 

 Kroeschell Boiler in 1905. Previous to this time they used, cast iron 

 boilers. The following letter speaks for itself: 



"Has the Kroeschell given entire satisfaction? Ye«! We had 

 two oast iron boilers, but yours proved by far the best. Your boiler 

 has already outlasted the two cast iron boilers by five years, and all 

 the expense that we have been put to was a smoke dome." 



(SiKned) MARYSVILLE FLORAL CO. 



July 21, 1913, Marysville, O. 



Kroeschell Replaces Cast Iron Boilers 



The ranqre of C. Peterson & Son, at Escanaba, Mich., was formerly heated by 

 cast iron boilers. Last season this firm installed their first Kroeschell, a No. 6, 

 which is now heating l.S.OOO to 14.000 so. ft. of glass. They state that they fire 

 these boilers three to four times during the night in zero weather. Under date of 

 .June 28. 1913, they write as follows: 



"The Kroeschell Boiler ha« given better satisfaction than any other boiler we 

 linve ever had. For years we have fired nian.v dilTerent boilers, and really never 

 could get one that we might say was entirely satisfactor>- — there was always some- 

 thing wrong — but now since we have tried tlie Kroeschell, we have solved our 



Imiler proposition. We have a ( ) cast iron sectional boiler here, only 



usecl two years, and we wish we could get rid of It and put hi another Kroeschell 

 In its place." (Signed) C. PETERSON & SON, 



Escanaba, Mich,, .Tune 28, 1913. 



WHEN YOU BUY-GET A KROESCHELL 

 'THE BOILER OF OENUINE EFFICIENCY" 



NOT 

 CAST 



IRON 



NOT 



CAST 



IRON 



TELEPHONE OR TELEGRAPH YOUR ORDER AT OUR EXPENSE 



KROESCHELL BROS. CO., ^^e^clS'o 



Strest 

 , ILL. 



