'■ ■ V -'^r^'VTi-y 



66 



The Weekly Florists^ Review. 



July 21), lUOO. 



We want to send you the names of the 

 nearest florists who are using the Martin 



ROCKING GRATE 



We refer to Peter Keinberg, Emil Baettner, Baaeett 

 & Washburn, Wietor Bros., Adam Zender, Sinner 

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



See It workingr and yop will order the Martin Rocking Qrate for 

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

 prices. 



IT SAVES COAIi 



Martin Grate Co. 



283 Dearborn St., CHICAGO. 



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



you say ship 



Mention The Review when vou write 



across one end of the house. They slope 

 upward to the farther end and connect 

 with the returns, which slope downward 

 back to the main return, which is imme- 

 diately under the main flow. 



Could I not use it just as it is for 

 steam? Or would it work better were 1 

 to raise the main flow so as to have all 

 the pipes slope downward? If it will 

 work either way, would I not have too 

 much radiation? Would one flow and one 

 return of 3-inch pipe be sufiicient? 



• J. Y. L. 



You could not use your system for 

 steam, as the pipes are too large; one 

 3-inch steam pipe will carry about 2,000 

 feet of 1%-inch pipe, or ten pipes in 

 200 feet of circulation. You had best 

 lift the far end of the main flow so that 

 it will pitch toward the boiler. Do not 

 raise it too high; a pitch of three inches 

 in 100 feet is all right. See that the 

 pipes are free from dirt outside and 

 inside. The radiation you can cut down 

 by running a slow fire. G. T. E. 



AN UNDERGROUND FLOW. 



I have a greenhouse 16x96 and three 

 and one-half feet to the eaves. It is 125 

 feet northeast from the boiler and runs 

 north and south. There is glass in both 

 ends. There is a gradual grade of one 

 foot from the north to the south, the 

 north end being the higher. The south 

 end is a foot above the top of the boiler. 

 Can I carry the flow and return under- 

 ground 125 feet and heat the house? 



The flow will have a gradual rise till 

 it leaches the north end of the house. 

 There will be an east and south house 

 alongside the boiler shed, and fifty feet 

 of the flow pipe for the north and south 

 house will go under the east house, about 

 four feet deep. I have been heating the 

 north and south house with a flue, but 

 not very successfully. 



The last twenty-five feet before enter- 

 ing the greenhouse will cross the street at 

 a depth of six inches. How can I pro- 

 tect this pipe from losing heat? The 

 other 100 feet will be four feet under- 

 ground. I am thinking of putting it 

 through tile. Will 2% inch pipe be large 

 enough or had I better use 3-inch? 1 

 am located in Ohio. 



I do not want to put a boiler in the 

 north and south house, on account of my 

 neighbors obiecting to the smoke. 



^ J. L. M. 



The flow and return for the north and 



IMICO 



Hot Water Boilers 



' Made by 



ILLINOIS MALLEABLE IRON 00. 



539 Diversey Boulevard, CHICAGO, 



Are noted for coal economy and 

 fl^ood results generally. 



BEND rOR CATAIjOO. 



Mention The Review when you write. 



The Chesapeake S Ohio Coaf S Coke Co. 



Admiralty Smokeless 



Especially 

 prepared for 

 iflorists' use 



CHICAGO 



CINCINNATI 



RICHMOND 



Write 



for 



quotations 



NEW YORK 



south house can be run underground to 

 tht- best advantage. To protect this pipe 

 from weather and loss of heat, put on 

 one thickness of asbestos paper and 

 about fifty thicknesses of newspaper; 

 then take some grain or fertilizer bags 

 and sew them on over the paper. Give 

 this a good coat of thick whitewash and 

 slide on the tile pipes. Make the joints 

 tight with cement to keep the water out. 

 I should advise the using of a 3-inch 

 flow and return, as the friction is not so 

 great as in a 2 14 -inch. G. T. E. 



KNOCKING OF THE PIPES. 



I have a greenhouse, 21x110, used for 

 growing lettuce. It stands north and 

 south, and is even-span. It measures 

 eleven feet to the ridge, and its side 

 walls are four feet high, with sixteen 

 inches of glass. The south end is glass; 

 the north end is protected by the boiler 

 room. I built the house last fall, with- 

 out having any previous experience in 

 greenhouse building or heating. I used 

 the hot water system. I have a common 

 iteam boiler, with thirty 2-inch flues five 

 feet long. The firebox is two feet eight 

 inches deep, twenty-two inches wide and 

 two and one-half feet high. The steam 

 dome is fifteen inches in diameter and 

 fifteen inches high. 



T ran a 4-inch pipe from the top of 



SMITH, UNEAWEAVER & Ca 



COiAL 



Aathratlte, Bltamlaoat, Coke aid Gaa Coal 



Philadelphia 



West End 

 Tmat BnUdlns* 



the steam dome up twelve feet, then 011 a 

 slope down under the ridge to the south 

 end of the greenhouse, giving it two feet 

 of fall in 110 feet. There I split it inJO 

 three two-inch pipes (each with a valv( ), 

 which feed four 1%-inch returns undT 

 each outside bench and three IV^-in'^ 

 returns under the center bench. I gi'>e 

 the returns two feet of fall till tli y 

 reached the boiler room, thence into a t- 

 inch pipe which dropped seven feet to ' 'P 

 bottom of the boiler. 



My evaporation tank is a 40-gallon b.-r 

 rel, which is about three feet higl'"'' 

 than the highest point of the riser, i ^^ 

 this I used a %-inch pipe, which ent' rs 

 the boiler about six inches from the ;t'" 

 turn, but on the same level. There is al'^o 

 a %-inch pipe from the top of the ri9<'r» 

 emptying into the barrel. 



Now, I had no trouble last winter i" 

 heating the house. When it was 22 <1p' 

 grees below zero, a fire at bed time and 

 one at 2 o 'clock in the morning wore 



