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86 



The Weekly Florists' Review. 



Septembbr 14, 1011. 



We want to send you the names of the 

 nearest florists ^^ho are using^ the Martin 



ROCKING GRATE 



We refer to Peter Reinberg, Emil Bnettner, Bas8ett 

 & Waehburn, Wietor Bros., Adam Zender, Sinner 

 Bros., Albert Dickinson Seed Co., and many others. 



See it working and you will order the Martin Rockinc Orate for 

 the new boilers to be put in this season. Write for catalogrue and 

 prices. 



IT SAVES COAL 



Martin Grate Co. 



343 S. Dearborn St., CHICAGO. 



Send order now— we will make up the grates and hold until 



you say ship 



Mention The Review when you write. 



cheapest means of keeping the temper- 

 ature above the freezing point, and 

 preferably around 45 degrees. 



I also want to have a greenhouse 

 nearby. By using a large boiler the 

 greenhouse could also be heated. But 

 would a large boiler be too expensive 

 for heating a small greenhouse, say 

 20x50 feet, when heat would not be 

 needed for the canvas greenhouse? We 

 have natural gas for fuel, which costs 

 from 8 cents to 15 cents per 1,000 feet. 



J. F. M. 



The plan proposed for heating the 

 canvas-covered greenhouse is a good 

 one, but would be improved by com- 

 bining it with overhead flows. The use 

 of five 2% -inch flows overhead and 

 fifteen 2-inch returns, placed about 

 eight feet apart and eight inches un- 

 derground, is suggested. This will give 

 bottom heat, which will be helpful in 

 forcing the crops, and by warming the 

 soil you will have considerable heat in 

 reserve, which will be helpful in a can- 

 vas-covered house. In the greenhouse, 

 20x50 feet, use one 2i^-inch flow and 

 six 2-inch return pipes. The best way 

 will be to have a small heater, with a 

 capacity for 200 square feet of radia- 

 tion, for the glass-covered house, and a 

 larger one, rated for about 2,000 square 

 feet, for the canvas-covered house. 



IN WESTEBN CANADA. 



As I am abour to start in the florists' 

 trade in western Canada, f shall be 

 pleased to receive a little information 

 on the heating of greenhouses in this 

 cold country, where the temperature in 

 the winter months often ranges any- 

 where from zero to 20 or 30 degrees 

 below. Steam heat seems to be fre- 

 quently preferred in cold countries. Is 

 this because it is not safe to use hot 

 water so far north, or because steam 

 can be installed more cheaply! Which 

 system would be more economical after 

 being installed? I am thinking oi 

 building two connected houses, each lo 

 x50 feet and 7 feet high at the sides, 

 with four feet of giass and the rest 

 wood. What size of boiler and what 

 piping will be required to heat these 

 to a temperature of about 50 degrees 

 in the coldest weather, with either a 

 steam or a hot water system? W. G. 



Hot water will give good results if 

 used in latitudes like the one referred 

 to, but it will cost one-half more to 



Why "Superior"? 



"You certainly have 

 placed the right name 

 to your boiler— no effort 

 at all to keep the temp- 

 erature at desired points 

 in zero weather." So says a South Bend, Ind., florist after a 

 thorough trial of . .:r . . ' : ■;' ■, 7 '■ 



"Superior" Greenhouse Boilers 



Made of best grade of steel throughout. No cast iron sections to crack. 

 Warranted to wear well. State your needs today to the 



SUPERIOR MACHINE & BOILER WORKS 



Superior and Green Sis., CHICAGO, ILL. 



Mention The Review when you write. 



Mention Th» Review when you write. 



Mention The Review when you write. 



STANDARD 



STEAM TRAPS* 



The simplest, most durable and up-to- 

 date steam trap on the market. Ask the 

 man who owns one. 



CataloBue sent on request 



C. Hippard Co. 



T0UM08T0WN, OHIO 



