108 



The Weekly Florists' Review^ 



Dbcbuber 16, 1909. 



go down underground and then riset 

 The cellar floor is four feet below the 

 outside level and the greenhouse stands 

 about eighteen inches higher than this. 

 If I buy a round boiler of local make, 

 what size of grate will I need? 



F. C. M. 



While the arrangement of piping as 

 proposed would provide a fairly good 

 circulation, I would prefer to carry a 

 2% -inch flow pipe over the door, and, 

 dropping down, connect with a coil of 

 four 2-inch pipes, which should run com- 

 pletely around the house to the door, 

 where a 2 14 -inch return should lead to 

 the boiler. If the plan of piping pro- 

 posed by F. C. M. is used, there should 

 be one 2% -inch flow pipe and two re- 

 turns of the same size in the coil. This 

 will provide about 300 square feet of 

 radiation in the greenhouse, which, to- 

 gether with the mains, will make about 

 400 square feet of radiation in the pip- 

 ing. 



It will be well to select a boiler rated 

 for about 600 square feet of radiating 

 surface. The flow and return pipes run- 

 ning from the boiler tq the greenhouse 

 should be 2 1^ -inch. After being insu- 

 late^ with asbestos packing, they should 

 be covered with 6-inch sewer pipe for a 

 permanent job, although a box of wood 

 wpuld answer. ■: , 



The size of the grate will depend some- 

 what upon the ponstruction of ,_the heater 

 and the kind of coal used. A 20-inch 

 grate would be a minimum size in any 

 case, and it would not need to be larger 

 than twenty-four inches in diameter. 



The boiler should be set sufficiently 

 low to allow carrying-th«. flow pipe lead- 

 ing to the grecn^oufie underground with 

 a rise of at leaSt one iidcli in twenty feet. 



HEA'f REGULATION. 



One of the -chief concerns of every 

 florist and grower is the proper and ac- 

 curate regulation of heat in the green- 

 house, particularly at night, when a little 

 negligence on the part of the night fire- 

 man may mean hundreds of dollars dam- 

 age because the house is allowed to grow 

 ■""-—-too cold or too hot. About the only 

 sure "way of eliminating this danger is 

 the installation of some method of tem- 

 perature alarm. There are a number of 

 concerns manufacturing these alarms, and 

 any florist will find it a good investment 

 to protect his stock in this manner. 



POOR CIRCULATION. 



This fall I built three houses, 16x40, 

 running north and south. The two west 

 ones are open, and have three feet of 

 glass in the east and west sides and two 

 and one-half feet of concrete wall all 

 around, banked up with earth. The walls 

 are set in the ground eighteen inches. 

 The north end of the east house abuts 

 against my residence. I have an upright 

 sectional boiler, with a capacity of 2,650 

 feet, 600 feet of which is used for house 

 radiation. I am located in northwestern 

 Iowa. 



I had an expert put in the piping, 

 which is as follows: A 4-inch pipe is 

 run to the south end, then west far 

 enough to be connected with coils, each 

 consisting of seven 1^^-inch pipes. Then 

 the main is reduced to 3-inch, and three 

 sets of coils of seven 1%-inch pipes are 

 put on. The main is then reduced to 2- 

 inch, and two sets of seven li^-inch pipes 

 are put on. At the north end the r>Bturn 

 pipes are put in on the same scale a»j the 

 flow pipes. 



There is practically no circulation be- 



A Better Growth of Flowers 

 Guaranteed 



Tbe reason more Morehead Steam Traps than any other make have been 

 sold In the past twenty years is becaase they arc directly responsible for abetter 

 growth of flowers wherever installed. "The best Investment we ever made," la 

 he statement we invariably receive. 



" How and why " in the Trap Book. Send for It. 



MOREHEAD MFG. CO., Dept. M, Detroit, Mich. 



Mention Tbe Review when you write. 



THE KROESCHELL BOILER 

 NOT CAST IRON 



HAS 



WilTEB 



FRONT 

 SIDES 

 TOP 

 BACK 



N«w Oatalograe and prices on application. 



Kroeschell Bros. Co. 



444. Erie St., Ciiicago 



Mention The Review when you write. 



DETROIT RETIIFN TFAPS 



in the Steexm-fleoitecl Greenhouse 

 BCrHR THAN A REBATE IN THEOOAL Bill . 

 BLOWER 00. ("*««««») DnroiT.MICH. 



DRAPKR'8 



Recording Thermometer 



Traces automatlcallT a correct 

 and continuous record in ink of 

 tbe temperature on a irraduated 

 weekly chart. Standardized 

 and fully guaranteed. 



Size 14 z 20 In. . price $80.00 

 •' 9 X 14 In., " 20.00 



THB DRAPER MFO. CO., 



158 Front St., New Terk 



Mention The Review when you write. 



DO TOU KNOW ABOUT THX 



Martin Rockiog firate 



IT SAVES COAf 



MARTIN GRATE GO. 



288 Dearborn St. 

 CHICAGO 



Always mention tbe Florists * Revle^^ 

 when writinsr advertisers. 



High-iirade 



For GREENHOUSES 



Get Our 



Catalogue' 



STEAM and HOT WATER 



GIBLIN&CO.. Utica, N.Y. 



Mention The Review when yon write. 



Steel 



Raturn 

 Tubular 



Boilers 



The most economical type of boiler for 

 Greenhouse beating. HiKhly recommended 

 by well-known florists. 



JOHNSTON HEATING CO. 



138 E. 31st St., NEW YORK 



Always Mention the Florists* Review when 

 writing advertiseiv 



