78 



The Weekly Florists' Review* 



October 7 



• 1909. 



We want to send you the names of the 

 nearest florists who are iisingf the Martii 



ROCKING GRATE 



We refer to Peter Reinberg, Emil Baettner, BaB^ tt 



& Washburn, Wietor Broa., Adam Zeader, Sin- (>r 



Bros., Albert DickinBon Seed Co., and many oth(-^a. 



See it working and you will order the Martin Rocking: Qra< ■ fo, 



the new boilers to be put in this season. Write for cataloKinJ aad 



prices. 



IT SAVES COAL 



Martin Grate Co. 



283 Dearborn St., CHICAGO. 



Send order now— we will malce up the crates and bold until 



you say ship 



Mention The Review when vou wMte. 



size should be used for the return pipe 

 of the above. 



A 3 -inch main flow will, be plenty 

 large enough for house No. 4. It will 

 not make any great difference if the high 

 points of the piping vary a little, as 

 each and every coil will take care of 

 itself if the mains are of the proper 

 size. 



POOR COMBUSTION. 



I have a return tube boiler that seems 

 to have poor draft. I will describe the 

 situation as closely as possible and hope 

 you can tell what the trouble is. There 

 are two boilers that stand in a pit twelve 

 feet deep and are connected to the same 

 chimney. One boiler is forty inches in 

 diameter and sixteen feet long, the other 

 forty inches by fifteen feet. One con- 

 tains fifty-two 2-inch tubes, the other 

 thirty-six of the same size. The grate 

 is 4x6 feet and is twelve inches from the 

 bottom of the boiler. The ashpit is six- 

 teen inches deep. The outlet to the chim- 

 ney is 12x12. The stack is two feet in 

 diafaieter and forty-six feet high. I hope 

 you can see the trouble and tell me how 

 to fix it. M. H. E, 



Your stack should be at least sixty feet 

 high and the smoke pipe from the boiler 

 to the chimney should be increased from 

 twelve inches to eighteen inches for each 

 boiler. The shell of your boiler is en- 

 tirely too close to the grate, and this con- 

 dition both interferes with the draft and 

 prevents the gases from expanding, there- 

 by producing incomplete combustion, 

 which means waste of fuel. You should 

 lower your grate at least six inches, and 

 also deepen your ashpit to correspond. 



FROM STEAM TO HOT WATER. 



I would like to know if I can change 

 my heating system from steam to hot 

 water without too many alterations. I 

 have one plant house 12x50, with solid 

 beds, with a trench through the center 

 of the house. This house runs east and 

 west. The north wall is three feet high, 

 the ridge five feet from the beds, slop- 

 ing to one foot on the south side. This 

 house requires little heat. The other 

 house runs north and south, is 18x60 feet, 

 sides three feet high, ridge eight feet. 

 The sides are lined with felt paper and 

 banked up over one-third. The boiler 

 is in the south end of this house, sunk 

 in a pit. The steam line is 2-inch 

 through this house and reduced to lYz- 

 inch where it goes on into a dwelling 



There is a big difference between a Return Trap 

 assembled in a Jobbing Machine Shop, and a 



Two No. 14 "Detroit" Return Traps located 

 on floor above boilers In Kreenhouses of 

 handolph & McClements, Pittaburs, Pa. 



"DETROIT" 

 RETURN 

 TRAP 



Built entirely within one of the 

 finest equipped, complete 

 plants in the country. 



INSTALL A ••DETROIT" AND YOU BUY 

 A GUARANTEE. 



AMERICAN BLOWER COMPANY 



General Offices, DETROIT, MICH. 



Mention The Review when you write 



THE KROESCHEU BOILER 



IS THX ONLY PKRFKCT 



Dot Water Boiler 



Not Cast Iron 



Has thin waterways. Heats quickly. It is the 

 most eflicient, safest and most economical 

 boiler built. V«ry powerful. 15 sizes, 

 beating from the smallest greenhouse up to 

 50.000 square feet of glass to 60 degrees, at 

 15 degrees below zero. 



Prices and catalogue on application. 



KROESCHELL BROS. CO., 444 Erie St., CHICAGO 



Al'WAys Mention the.... 



florists* Review 



Wbea Writiii* Ad«'""'" 



