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98 



The Florists* Review 



Mabch 11, 1915. 



H. H. L1NEAWEAVER & CO., Inc 



ANTHRACITE 

 ■■4 



IITUMINOUS 



COAL 



WMt Snd Trust Buildins. PHILADELPHIA 



1 Broadw»y. NEW YORK 



■nttins BuUdinc. LEBANON. PA. 



Mention The Review when, yon write. 



Greenhouse Heating. 



SEVERAL DEFECTS IN PIPING. 



Will you please give me some advice 

 about the heating of my two green- 

 houses? I am heating them with steam 

 from a sectional boiler which is rated 

 for about 2,000 feet of 1-inch pipe. 

 The houses are each 12x140 and six 

 feet high from the ground to the gut- 

 ter, with no partition between them. 

 They run east and west and the boiler 

 house is at the southwest corner. A 

 2-inch main, reduced from a 4-inch 

 he«4ir at the boiler, runs along the 

 west end and is there connected with 

 tTiree flows of 1-inch pipe and one re- 

 turn of 1-inch pipe back to the west 

 end, where it runs into a 2-inch return 

 to the boiler. Unfortunately, I cannot 

 sink the boiler low enough, owing to 

 water, so thb 'teturn is practically at 

 the water level of the boiler. The 

 whole system ia extremely slow in cir- 

 culation. 



Will you klhdly give me an idea as 

 to how to rearrange the pipes to the 

 best advantage! I have been told that 

 the better way would be to run the 

 main to the far end and get the heat 

 from the returns. Do you think that 

 would be satisfactory? I am grow- 

 ing lettuce, etc., on the ground, and 

 general spring stock. Have I enough 

 |Mung to maintain a temperature of 55 

 dSkees in this part of Ontario, where 

 tJ^^utside temperature is sometimes 

 away below zero? Last winter the 

 ■Igrcury dropped to 23 degrees below 

 ^B^ The houses are in a sheltered 

 posmbn, except at the south. On thfe 

 uoHh side there are other greenhouses. 



A. W. G. 



In this heating system there are sev- 

 eral defects, or rather deficiencies, any 

 one of which would lead to unsatis- 

 factory results. As I understand it, 

 an attempt is being made to heat two 

 greenhouses, each 12x140, to 55 degrees, 

 in a climate where the temperature 

 sometimes goes to 23 degrees below 

 zero, with a steam boiler rated at less 

 than 700 square feet of radiation, and 

 using a 2-inch main for the two houses, 

 with three 1-inch flows and one 1-inch 

 return in each house. 



There is a deficiency of thirty per 

 cent in the boiler, and the capacity of 

 the main and the amount of radiation 

 should be increased 100 per cent. To 

 say nothing of the radiation afforded 

 by the mains, each house should have 

 about 350 square feet of radiation. As 

 a good margin in the capacity of the 

 boiler should be provided, 1,000 square 

 feet would be none too large. While 

 a 2-inch main would answer for each 

 of the houses, to heat both of them 

 nothing less than a 2i/^-inch main 

 should be used. To supply 350 square 

 feet of radiatiori'iin each of the houses, 

 there should be seven 1-inch flows and 

 one I'inch return in each house. 



If I were to specify what I would 



WHY TAKE A CHANCE? 



SlTou can't know (at best ypli only think you 

 know) what the temperature m in your green- 

 houses, nights and during your absences, unless 

 you have 



THE STANDARD 



RECORDING 



THERMOMETER 



Present prios, $20.00; formerly $2S.OO 



It has made thousands of dollars for many flor- 

 ists and may do as much for you. Your plants 

 must have certain, steady temperature to do their 

 best. Use this thermometer and you will know 

 whether tiiey are getting what they need. It 

 leaves a written record under lock and key. 



**Pleaae mail at once 25 charts for ronr Recording Ther- 

 mometer, which I bought some seven years affo. ard which 

 is a good, reUable rnlde today." A.'M.HEKR.Xancaster, Pa. 



STANDARD THERMOMETER CO. 



<i9l|rShlrley StrMt, BOSTON, MASS. 



••nd for 

 Circulars 



Mention Tfa* B«t1»w when yon writ* . 



Pipe Fittings -- Imico Boilers 



-FOR GRKENHOUBB WORK- 



ILLINOIS MALLEABLE IRON CO. 



1801-1825 DIVKRSKT BOUUVARD CHICAGO 



Mention The Review when yon write. 



WILKS 



Hot Water Boilers 



ARE THE MOST ECONOMiai 

 FILERS ron GREENHOUSES 



No NIsht Firoman llaqulrMi with our 



SELF-FEEDING 

 HOT WATER BOILERS 



Send for Catalogue and prices. 



S. WILKS MFG. CO. 



S528 Slilelds Ave., CHICAGO 



Mention The Review when yon write. 



T E E L 



RETURN 

 TUBULAR 



i BOILERS 



Johnston Hooting Co. 



131 E. 26th Stroot NIW YORK 



Mention The Review when yon write. 



BOILER TUBES-4-mch 



cleaned, ends cut square, 6^c per foot. Also 

 Wrousht Iron Pipe of sound second-hand aual- 

 ity, with new threads and couplinsa. We guar- 

 antee entire satisfaction. 



Established 1902. 



rrAFF ft KENDALL, Fnidrr St, NEWAKK,li J. 



Mention The Review when yon write. 



Full Wolght Wrought Iron 

 and Spollorliod Stool Plpo 



Coils, BcMls, Railiofs, etc. Made to Skeldi 



FORD & KENDIG CO. 



5It2*^SI^SJI*S^u PHUADELPBA 



Mention The Review when yea write. 



BOILER FLUES 



We make • specialty of handllnv caretnlly selected 

 Boiler Fines, 4-lnch diameter and other alaea for 

 rreentaonae piping, Oatter Poets, etc. Also, w. 

 nake a specialty of flues for retnblng boilers. All 

 flnee are thoroughly cleaned Inside and out, 

 trimmed, and are ready tor use. General Sales 

 Acents for Stnttle's Patent damp and Elbow for 

 Joining flues— no packing, no leaks. New standard 

 pipe and all kinds of greenhouse fittings. Right 

 prices and prompt shipment. 



H, MUN80N '^%r^'' 



140S Wells St. Phone Superior sn Uhlooco 

 Mention The Review when yon write. 



WROUGHT IRON PIPE FOR SALE 



Rethreaded, thoroughly overhauled, 14 ft. and up, 

 guaranteed free from splits or holes. 

 It will pay yon to correspond with us. 



ALBERT A DAVIDSON 



tXl-n Osisa AvesM BtOOKLTN. NEW YeRK 



Meatloa The Berlew whea yo« write. 



BYERS' 



Guaranteed Full Weight Wrought Iron Pipe 



Lap- welded in sizes over W inch. 



nniNGS, VALVES. BOILERS, RADIATORS, ETC 



JOHN MANEELY, 



809-311-313 Arch St, PHILADELPHIA, PA 

 Mmtlon The Reriew whea yea write. 



4-INCH 



BOILER TUBES, 83 



conto por foot. 



Now and S. H. Plpo. AH SIsoo. 



Tell us your wants. 

 nXINOM PIPS ft MVG. CO. 



1117 8. Jefferson Street, CHICAaO. ILL. 



Kentlon The Bevlew when 70a write. 



