96 



The Weekly Florists^ Review* 



Febhuaby 2, 1911. 



WRITS TO 



BEO. B. LIMBERT & CO. 



557 ruHM St, CHICAGO 



—For Prices on— 



fieoiuoe 

 Wroisht Iron Pipe 



Ask For Cktaloca*. 



Mention The Review when you write. 



will rust out in a short time. Is this 

 correct? Any advice you can give me 

 will be apprcM iated. A. B. C. 



The ("ondition of the ]!»ipe is not 

 stated, but at best it will not be as dur- 

 able as new pipe and if it has been used 

 underground its durability will be 

 greatly lessened. It will be well in 

 either ease to coat the pipes inside and 

 outside with mineral paint, free from 

 tar. If the pipe is in bad condition, its 

 use in the heating coils would not be 

 advisable. 



COAL, COKE OR GAS? 



Can you furnish any information in 

 regard to the relative heating value of 

 hard coal or coke and natural gas, 

 assuming either to be used in the return 

 tubular type of boilers and under nor- 

 mal conditions. The gas is under a 

 pressure of one and one-half to three 

 ounces. We would install the latest 

 improved l)virners and mixers, but 

 would use no steam or compressed air 

 in connection with the gas. The ruling 

 prices in this vicinity are: Hard coal, 

 .$6; coke, $3. .50; gas, 30 cents per thou- 

 sand feet. L. 



The results obtained when the fuel is 

 used under a tubular boiler might be 

 different from the results as they have 

 been determined in a small sectional 

 heater. In the latter case the coke 

 would be the cheapest of the three fuels 

 at the prices mentioned, but this would 

 require that it be so burned as to secure 

 its full efficiency. Gas would need to 

 be available at 20 cents to equal the 

 price of coke, and at 25 cents to be 

 comparable with the price of hard coal. 

 In favor of the gas should be noted the 

 saving in the expense of firing and of 

 removing the ashes. 



Using it under a tubular boiler, how- 

 ever, it might prove more expensive 

 to burn coke. 



THE SLOPE OF THE PIPES. 



In hot water heating, liow far can 

 the water be carried from the boiler 

 and still give good results? In my heat- 

 ing plant, a 3-inch main will run as 

 far as the greenhouse; then, after it 

 enters the greenhouse, 2-inch pipe will 

 be used for the coils. Would a faster 

 circulation be obtained by running the 

 coils downhill all the way, after leaving 

 the main, than by running them uphill 

 to the far end of the house and then 

 down? W. H. W. 



Water can be carried in the mains 

 500 feet, and even farther if the pipes 

 can be wrapped and if there is a good 

 fall toward the boiler. The question 



"SUPERIOR" 



To all others for Greenhouse Heating. 



Made in Nine (0) sizes for Hot Water. 

 Send for cataloarue and list of STO\<rers tbat are usins: this boiler. 



Superior Machine & Boiler Works 



840-850 West Superior Street, CHICAGO, ILL. 



Mention Tlie Keview when you write. 



AUTOMATIC Euamc 



CONDENSATION PUMP 



Chicago Pump Co.'s 



Saves Wo to S0^» Coal 



Pulls water and air out of the heating 

 system. Pulls hot steam through the piping 

 and pumps the water into boiler at the same 

 time. Works on high or low pressure plants, 

 easily installed, requires no attention, costs 

 little to operate. 



Write now for full doscriptive catalogue. 



CHICAGO PUMP CO. 



1069 Fulton St., CHICAGO, ILL. 



Mention The Review when you write. 



WILKS 



Hot Water Boilers 



The Most Koonomloal Boliwrs 

 tor ChraenliouBee it it 



No night fireman required with our 

 Self-feeding Hot Water Boilers. 



Snd ftr CataiMM twi Pricat. 



S. WILKS MFG. CO. 



SSSS Sblelda At*., CHICAGO 



Ford & Kendig Co. 



"Spellerized" Wrought Pipe 



ItopeclaUy adapted for Greenhouse Work, 

 Fittings, Valves, Tools, etc. 



1428-30-32 Callowhill St., PHIIADELPHIA, PA. 



Mention The Review when you write. 



of elevation, as well as the slope of the 

 pipe, enters into the question of rap- 

 idity of circulation. With the highest 

 point in one system on the same level 

 as the highest point in another system, 

 and with a uniform slope in each sys- 

 tem, there should be a slightly better 

 circulation in the downhill system. 

 With the returns left unchanged in both 

 cases and the furnace end of the down- 



Leaks Ruin Stock 



Don't Have Them 

 Our Emergency npe Clamps 



•re made of malleable Iron and are 

 guaranteed to make QUICK, SURX RK- 

 PAIRS of all splits or rust hole* on pipe. 



Send for cktAlogme. 

 Pipe Repairs and Steam Specialties 



JAMES McCREA & CO. 



Blanufaoturera 



558-560 Washingtoa Blvd. CHICAGO 



Mention The Review when yoa write. 



HIGH-GRADE BOILERS 



Ck)t Our 

 Cataloeue 



Tor GREENHOUSES 



STEAM and HOT WATER 



6IBLIN & CO.. iitica. N.Y. 



Al^irays mention the Tlorlsts' Review 

 when writinK advertisers. 



