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62 



The Weekly Florists' Review^ 



JUNF. 25, 1908, 



We want to send you the names of the 

 nearest florists -who are using the Martin 



ROCKING GRATE 



Drop us a postal and we will send you the 

 names of growers you know are good busi- 

 ness men. 



See it working and you will order the'MRrtln Rocking Orate for 

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

 prices. 



IT SAVES COAL 



Martin Grate Co. 



283 Dearborn St., CHICAGO. 



Send order now— we will malce up tiie grates and liold until 



you say ship 



Mention The Review when yon write. 



fireenhoose fieatiag. 



HEAT FOR TWO HOUSES. 



Please give me information as to how 

 many 2-inch pipes I need in a house 18x 

 100 and ten feet to the ridge, to be used 

 for growing carnations, near New York 

 city. Please state also the number of 

 such pipes that will be required in a 

 house 15x100 and seven feet to the ridge, 

 for roses and bedding plants. I intend 

 to run a 214-inch flow pipe straight up 

 from the boiler under the ridge, and put 

 the returns on the posts in the house. 



How deep must I put my boiler in or- 

 der to get good circulation? The boiler 

 shed will be at the east end of the houses, 

 which run east and west. C. P. 



The carnation house figured to carry 

 a temperature of 60 degrees should be 

 provided with eight lines of 2-inch pipe. 

 The riser for this house, if only one 

 is used, should be 2i^-inch, in which 

 case one of the eight 2-inch lines can 

 be dropped out. The rose house, which 

 is narrower but which should be figured 

 on a 70-degree basis, will require practi- 

 cally the same piping as the carnation 

 house — a 2% -inch riser and seven lines 

 of 2-inch pipe. The deeper the boiler 

 can be placed, the better results, other 

 things being equal. Do not neglect the 

 elevated expansion tank, with direct con- 

 nection with the main return close to the 

 boiler. L. C. C. 



PIPING IN NORTHERN ILLINOIS. 



We are building a greenhouse, 24x88, 

 to be used mostly for carnations. The 

 house runs north and south, with side 

 walls five feet high and a glass gable in 

 the south end. There are benches three 

 feet and a half wide along both sides and 

 across the south end. In the center are 

 two benches, each 5^4x78 feet. The 

 benches are all separated by 2-foot 

 walks. The boiler-house is located near 

 the northwest corner of the house. 



We have ample boiler capacity and 

 had figured on using 4-inch cast-iron 

 pipe. What would you suggest in regard 

 to piping the house under these condi- 

 tions? If you do not like the 4-inch 

 pipe, how would you heat the house? 



C. G. G. & Co. 



The length of your house and the 

 remoteness of your boiler makes a long 

 run for a gravity hot water system. 



IMPROVED STEEL RETUBN TUBUI.AR BOILER, rOR STEAM AND HOT WATER 



JOHNSTON HEATING CO. 



1 38 East 31st Street, 



Mention The Review when you wri'o. 



NEW YORK 



TflE KROESCflELL BOILER 



IS THE OITLT PERFECT 



Hot Water Boiler 



Hot Oast Iron 



Has thin waterways. Heats quickly. It is the 

 most efficient, safest and most economical 

 boiler built. Vary powertnl. 15 sizes, 

 heating from the smallest greenhouse up to 

 50.000 square feet of glass to 60 degrees, at 

 15 degrees below zero. 



Prlcea and catalogue on application. 



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



Mention The Review when you write. 



Under these conditions I should hesitiPte 

 to use a low pressure system with 4-inch 

 cast pipe, and would prefer to take 

 chances on using a single 3 V^ -inch flow 

 from the boiler directly to the house and 

 to rise under the ridge, making the high 

 point in the system under the ridge at 

 the south end. There divide the flow by 

 the^ use of 2-inch branches, one to each 

 side bench, and install seven 2-inch re- 

 turns under each outside bench and five 

 2-ineh returns under each of the center 

 benches, thus making in all twenty-four 



2-inch returns. By this arrangement and 

 a high expansion tank of larger capacity, 

 connected directly with the main return 

 close to the boiler, good service should 

 result. L. C. C. 



HEAT FOR CARNATION HOUSE. 



I am building a new house, 24x46, for 

 carnations, in the central part of New 

 York state. I have always piped under 

 the beds, but would like this one piped 

 on the side walls. The two ends and 



