92 



The Florists' Review 



JANDABX 2, 1918. 



COALl COAL 1 1 COALII! 



HARD COAL 



I am able to supply the following 

 sizes of coal to florists in almost any 

 locality : 



CHESTNUT 



PEA and BUCKWHEAT 



(Nes. 1, 2 and 3) 



Communicate with me if in need. 



G. R. CLARK 



124 Wasbingfton Av«., Soranton, Pa. 



Mention The Review when you write. 



Greenhouse Heating. 



The season is now at hand when the 

 movement of coal cars is likely to become 

 the slowest and most irregular of the 

 year, for snow and severe cold are to be 

 expected at any time. In this connection 

 it is worth while noting that the Ameri- 

 can Railway Association, which keeps tab 

 on the car situation, reported as of De- 

 cember 14 that the car shortage had de- 

 veloped until there was a shortage of 

 34,392 cars, as against a surplus of 

 76,814 cars at the corresponding date last 

 year. Growers have not forgotten the 

 trouble they had in getting coal during 

 the severe weather last January and all 

 save those whose habit it is to take 

 chances will see to it that they have sev- 

 eral weeks' supply of fuel on the place 

 at once, as this year's car shortage will 

 add to the diflSculties of last year the 

 moment real winter sets in. 



IMPBOVINa THB OIBOTTIiATION. 



In The Review for December 13, 



page 142, M. L. asked the following 



question: 



Please baye yonr beating expert give me aome 

 Information with reference to the kind of steam 

 pump and receiver for the circulation of steam 

 and for receiving the condensation which is re- 

 turned to the boiler. What size of apparatus 

 would be suflScient for 25,000 square feet of 

 glass? The engineer who installed the boiler 

 stated that the receiver of the pump should be 

 three feet below the level of tbe pump. Please 

 give me full information about tbe Elnd of pump, 

 tbe size, installation, etc. 



I have had considerable experience 

 in these matters, being now with Mark 

 Aitken, who has the largest estab- 

 lishment at Springfield, Mass., and 

 perhaps I can help M. D. In the first 

 place, there is no pump for the circu- 

 lation of steam. Now, if I were going 

 to answer the question, I should say 

 that the first thing to be done is to 

 put a reducing valve on the heating 

 system. Then a middling high pres- 

 sure can be carried on the boiler, re- 

 ducing the pressure on the heating 

 system, by means of the valve, to any 

 pressure that is needed. A Duplex 

 pump 3-2-4 would be ample to take 

 care of 25,000 sq' are feet of glass, and, 

 with an automatic receiver and a 

 steam trap or traps on the return, it 

 would work all right. The reason that 

 I mention traps is that if they are not 

 used, then the steam will come back 

 to the receiver through the returns and 

 blow out of the vent pipe on top of the 

 receiver, and would be wasted. 



The inquirer also says that the engi- 

 neer who installed the boiler stated 

 that the receiver should be three feet 

 below the pump. That is wrong; the 

 receiver should be above the pump, so 



RETURN TRAPS 



help to maintain a 

 uniform tempera- 

 ture throughout the 

 houses by keeping 

 steam coils free 

 and clear of con- 

 densation. 



By automatically returning the condensation directly to boilers at almost 

 evaporation temperature, "Detroit" Traps eflfect a great saving in coal. 



Bulletin No. 826-WP gives detailed 

 iDformation. Ask us for a copy. 



\ 



American BlowerGdmpany 



■ DETROIT. MICH. ■ 



U. S. A. 



Canadian Sirocco Company, Limited, Windsor, Ontario. Manufacturers for Canada. 

 Mention Tbe Review when you write. 



^ HERE IT IS 



THE ECONOMY AUTOMATIC CONDENSATION PUMP AND RECEIVER 



Increases rapidity of circulation by drawlngr condensation 

 through the system. Tenting the air and returni^ig water to 

 boiler at high temperature. Eliminates snapping, pounding 

 and cracking in radiators and pipes. Comprises an ex- 

 pansion tank, automatic switch and centrifugal pump auto- 

 matically operated by electric motor. Easily installed and 

 increases the efficiency of either high or low pressure sys- 

 tem 80 per cent. Let us co-operate with you In solving the 

 most difficult problems and making Installations. Worth 

 many times its cost to any florist. Write as. 



THOMAS & SFDTH, Inc. "«-"c^H^ci*JSf?^i.'*'^**'' 



j Tel. Monroe 6941-«M2 



Mention The Reyiew when you write. 



The Kroeschell Boiler 



Was installed to heat oyer ten million 

 (10,788,000) square feet of glass during 

 the past five years. 



Seidfor 

 CATALOGUE 



The Kroeschell Boiler 



Will give you more heat with the same 

 piping required by other boilers, and 

 with less fuel. 



Kroeschell Bros. Co. 



444 W. Erie Street 



CHICAGO 



Mention The Review wlien you write 



When you buy 

 Emergency Pipe 

 Clamps in box-lots, 

 you're taking out 

 leak-insurance. 



Here's our price 

 list: 



Each 



lin $0.40 



lJ4-in 48 



l»s-in 56 



2.in 64 



Each 

 2ia-in....|0.80 



8-in 1.00 



8J«-iB.... 1.20 

 4-in 1.60 



I 



1-ln. to 2-in,, twelve in a box. 



2^-in. to 4-in., six in a box. 



Prices Net F. 0. B. Chicago. 



James McCrea <fe Co. 



668-560 Washington Bvd. 

 CHICAGO. :: ILLINOIS 



Mention Tbe Review when you write. 



