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The Weekly Florists^ Review^ 



May 30, 1907. 



Greeahoose Heating. 



GREENHOUSE CHIMNEYS. 



There is one matter which I have never 

 seen mentioned in the columns of the 

 Review, namely, the chimney. I have 

 an iron stack now, and need another. 

 Would a brick chimney be better? What 

 would be the inside dimensions of the 

 chimney and the thickness of the walls? 

 I have one boiler and wish to set another 

 for emergencies. I should like to use 

 the same stack for both. Would it be 

 better to have a separate flue for each? 

 What height would be best? I have a 

 hot water heater and expect to replace 

 it with one of larger size. I use coke 

 for fuel. Would it be best to have a 

 door at the bottom of the stack for ac- 

 cumulation of soot? F. J. U. 



The brick chimney is more permanent 

 than the metal stack, although the ini- 

 tial cost o^ the chimney is much greater 

 than that of the metal stack. The gen- 

 eral rule used to determine the size of a 

 stack is as follows: The area of the 

 cross section of the stack should be 

 equal to one-ninth the area of the grate 

 surface of the boilers. If metal stacks 

 were to be used, I should advise putting 

 up a stack for each boiler, but if a 

 brick stack is to be employed and the 

 boilers are arranged in battery, use a 

 breeching to connect them with the main 

 stack. The area of the stack should be 

 one-ninth the combined area of the grate 

 surface of all the boilers to be cared 

 for. The height of the stack is a mat- 

 ter of location and the character of draft 

 desired. Tall stacks give stronger nat- 

 ural draft than short ones, but the pre- 

 vailing type of construction on large 

 power plants today is a short stack and 

 forced draft. For -low pressure work the 

 natural draft of the chimney or stack 

 will be sufficient. The thickness of the 

 wall is determined by the type of con- 

 struction and the height of the chim- 

 ney. For details regarding the construc- 

 tion of boiler settings, see Florists' Re- 

 view of December 31, 1903, page 269. 

 L. C. C. 



SHADING. 



The time is now at hand when this 

 important matter has to be considered, 

 and as far as my experience goes, there 

 are few other subjects connected with 

 plant growing under glass which are so 

 improperly carried out, or, I might say, 

 understood. I think I have written on 

 the same subject before, but there may 

 be many new growers, and I venture to 

 say there are some of the older ones who 

 do not take sufficient care. 



I might take the end of my story first, 

 and say that the greatest evil is done by 

 leaving shading of any kind on, after 

 the full rays of the sun are partially off 

 the subjects shaded. In looking back I 

 can remember many instances where 

 over-shading has caused failure. 



With shading, circumstances have to 

 be taken into account. After a few 

 warm, showery days, if we get a sudden 

 change to sunshine, the air being clear, 

 and the glass washed clean, there is 

 much more danger of mischief being 

 done, especially as the dull period will 

 have caused many plants to have made 

 soft and tender growth. Under ordinary 

 conditions many of our choicest ferns 

 will thrive without any shading; but 



TBE KROESCHELL BOILER 



18 THK ONLY FKRrSCT 



Hot Water Boiler 



Not Cast Iron 



Has thin waterways. Heats quickly. It Is the 

 most eificient, safest and moat economical 

 boiler built. Very powartal. 15 sizes, 

 beating 6000 to 50,000 square feet of glass to 

 60 degrees, at 15 degrees below zero. 



Prices and catalogue on application. 



KROESCHELL BROS. CO., 51 Erie St., CHICAGO 



Mention The Review when yon write. 



The John Davis Co. 



HaUted, 22d and Union Street 



CHICAGO, ILL. 



Manufacturer* and Wliolesalers of 



Wrought Iron Pipe 

 Cast-iron Fittings 

 Valves, Pumps 

 Steam Traps 



and eTerytbinar used In a Steam Plant 



A majority of the Houses are changing 

 from water to steam. The only pipe to use 

 is the genuine Wrouglit Iron and "Byers" 

 is the best made. Wbitx Us fob Prices. 



WX BEFKB TO 



BAS8ETT * WA8HBUBN 



POKHUIANN BB08. CO. 



GEOBGE BEINBEBO 



PETEB BEINBEBG 



Mention The Review when yon write. 



High-Grade Boilers 



gaSSa. for GREENHOUSES 



STEAM and HOT WATER 



CIBLIN & CO., Utica, N. Y. 



Mention The Review when yon write. 

 Write Us Yonr Wants In 



Heating Specialties 



We supply everything needed for a 

 Greenhouse Heating Plant. Booklet 

 (or the asking. 



HENION A HUBBELL 



61-69 N. Jefferson St., CHICAGO. 



Mention The Review when yon write. 



S. WILKS MFG. CO. 



Kanufaoturera of 



Greenhouse Boilers 



35th and Shields Ave., CHICAGO, ILL 



Mention The Review when yon write. 



take them from a moist, shady position 

 and fully expose them, they wUl soon 

 curl up. Glass also has much to do 

 with the matter. Good glass, free from 

 blisters, which focus the sun's rays and 

 cause burns, may be left unshaded; but 

 with cheap glass, which has the blisters, 



Take no Chances When Selecting 

 Your Heating Apparatus. 



BETTER BE SAFE 

 THAN SORRY 



Have a 



FlorenceHeater 



installed and then you can 

 bum any kind of ftiel with 

 the most economical results. 



Write for catalogue to 



Colombia Heater Co. 



BELVIDERF, ILL. 



OR ITS 

 CHICAGO BALKS OKPARTBIKNT 

 LOCATKD AT 



85 East Lake Street 



Mention The Review when yon write. 



THE SUPERIOR 



GREENHOUSE BOILER 



Ijurceat Heatlnc Burtaoe, 



Most Perfect Combustion, 



Best Circulation Insured. 



Write for cataloKue and post yourself; 

 you'll order no other boiler if you are lookingr 

 for tbe beet. 



We carry a large stock of 

 all kinds of 



GRATE BARS, 



Fire Tools, Smoke Stacks, Boiler 

 Casting^a, Flue Cleaners, etc. 



Send for Catalogue and Price List. 



Superior Machine and Boiler Worl(s 



120-1S8 W. Superior St., CHICAGO 



L. D. Phone, Monroe 1008. 



Mention The- Review when yon write. 



