58 



The Weekly Florists^ Review* 



July 9, 1008. 



We ifeant 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 Martin 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 make up the grates and hold until 



you say ship 



Mention The Review when you write. 



The John Davis Go. 



Balated, S2d and Unloa Stnel 



CHICAGO. ILL. 



Manulaotarers and Wholesalers of 



Wrought Iron Pipe 

 Cast-iron Fittings 

 Valves, Pumps 

 Steam Traps 



and eTerythlnc used in a Steam Plant 



A majority of the Houses are cbangringr 

 from water to steam. The only pipe to use 

 is the genuine Wrouebt Iron and "Byers" 

 la the best made. White Us fob Pbicks. 



WX BXFXB TO 



B188m * WASHBUBN 



rOEHLMANN BB08. CO. 



flEOBGE KEINBEBCI 

 I PETEB BEUrBBBtt 



Mention The Revlewwhen you write. 



fireeoboase Heating. 



SIZE OF BLOW PIPES. 



Please let me know what size cross- 

 header it will take from a 3-inch flow to 

 supply four lV4-inch hot water returns 

 under each of four benches. K. Y. 



Each of the branches to supply the' 

 four manifolds of IVl-inch pipe should 

 be of 2-inch pipe. If you use a cross- 

 header such as you describe, this should 

 be of 3-inch pipe, the same as the main 

 flow, as far as the take-off for the two 

 inside coils; from that point on it can be 

 reduced in size to two inches to supply 

 the outside coils. 



BURNERS FOR NATURAL GAS. 



A high pressure line of gas main runs 

 along the front of my place and I have 

 decided to use gas as fuel for my green- 

 houses, but I am at a loss what kind of 

 burners to use. I went to see two of 

 our gas fitting firms in town and one sug- 

 gested open burners, six in each fire-box; 

 the other one just the contrary, a burn- 

 er where the gas will have to burn 

 through broken firebricks. I should like 

 to get the best without paying for ex- 

 perience. B. M. 



By removing the grates of your boilers 



IMPROVED STEEL RETURN TUBULAR BOILER, FOR STEAM AND HOT WATER 



JOHNSTON HEATING CO. 



138 East 31st Street, 



Mention The Review when yoti \vri»r>. 



NEW YORK 



Pipe FMtings — Imico Boilers 



FOR GREENHOUSE WORK 



ILLINOIS MALLEABLE IRON CO. 



580 DIVERSET BOULEVARD CHICAGO. 



and carrying the supply pipe, wiiich 

 should be 1-inch pipe, close to the base, 

 through the ash doors, you can use what 

 is called a Jumbo burner, which consists 

 of a large mixer threaded for a 1-inch 

 or %-inch supply pipe and a 2-inch pipe 

 above. The air take of the mixer is 

 adjustable so that the draught can be 

 regulated. The burner is usually a home- 

 made affair, consisting of a piece of 2- 

 inch pipe about ten inches long threaded 

 at both ends, one end screwed into the 

 mixer, the other capped. Around the 

 side of the cap drill about six %-inch 

 holes, and then drill fifteen holes in 

 three tiers, one above the other, in the 

 2-inch pipe large enough to be threaded 

 for %-inch gas pipe. Arrange the holes 

 so that they miss-match. Screw a nip- 

 ple of %-inch pipe into each opening, 

 making the lower circle of nipples about 

 seven inches long, the next row about 

 five inches long and the top row or those 

 just below the cap about three inches 

 long. This will provide a burner, which 

 is economical of fuel and one capable of 

 supplying great heat. The jet of gas 

 admitted by these mixers is usually only 



SUPERIOR TO ALL OTHERS ^ 

 FOR HOT WATER HEATING 



SuperiorMaclilne&BoilerWorks 



126 W. Saperlor St., ChlcsffO, 111. 

 Write for Prices and Catalogue 



Mention The Review when you write. 



