July 9, 1908. 



The Weekly Florists^ Review* 



59 



WILKS 



Hot Water Boilers 



Are Best for 



••••Small Greenhouses, etc^^^^ 



NO NIGHT FIREMAN REQUIRED 



With Our 



Self-feeding Hot Water Boilers 



Keep a^ even and continuoua fire for ten hours and Iong>er 



ifrithout any attention 



VERY ECONOMICAL IN FUEL 



Send for Our Greenhouse Catalogs 



S. WILKS MFG. CO., 



3S23 Shields Ave. 



CHICAGO 



Meption The Review when you write. 



Digb-firade Boilers 



gaS;E„,ForGREENHODSES 



STEAM and HOT WATER 



GIBLIN & CO., Utica, N. Y. 



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about %-inch, and it is likely that you 

 will find it necessary to enlarge this 

 opening to about a quarter of an inch. 

 This can be done easily with a common 

 twist drill and a carpenter's brace. 



NATURAL GAS. 



Will you please give us your opinion 

 as to which is the cheaper fuel, natural 

 gas at 15 cents per thousand feet or 

 Pittsburg ruh of mine coal at $2.50 per 

 ton? J. D. 



You can judge for yourself which will 

 be most economical for you. It is esti- 

 mated that 30,000 cubic feet of gas is 

 equal to one ton of the best coal, or 

 that coal at $4.50 per ton is equal to 

 gas at 15 cents per thousand. You must 

 set against this the cost of firing, remov- 

 ing ashes, etc., which is chargeable to 

 coal and net to gas. 



PIPING AND VALVES. 



Will you kindly tell me how many 

 3-inch flows and how many 2-inch re- 

 turns are necessary to heat a house 22x 

 100 feet in zero weather to about 55 de- 

 grees, with hot water? Would it be 

 necessarv to have valves in each pipe? 



B. L. 



The house under consideration, 22x100 

 feet, can be heated by a single 3-inch 

 flow and twelve 2-inch returns. If a 

 single flow is used this should be placed 

 under the ridge. If you wish to keep 

 all pipes under the benches use fourteen 

 2-inch pipes, placing five lines under each 

 outside bench and four under the center 



THE KROESCHELL BOILER 

 NOT CAST IRON 



HAS 



WflTEB 



FRONT 

 SIDES 

 TOP 

 BACK 



M«w Catalogue and prices on application. 



Kroeschell Bros. Co. 



51 Erie St., Chicago 



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The Standard 

 Steam Trap 



fa acknowledgred the best for the 

 florist because it is durable, and does 

 its work without trouble and annoy- 

 ance, saving its cost by the economy 

 in coal billB. 



E. HIPPARD, Youngstown, Ohio 



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bench, and use one line of pipe in each 

 coil as a flow, i. e., a flow and four re- 

 turns under each side bench and a flow 

 and three returns under the center bench. 

 It will not be necessary to place valves 

 in any of the pipes, unless so desired for 

 the purpose of throwing a portion of the 

 radiation out of service during mild 

 weather. If valves are used install only 

 gate valves. Globe valves impede the 

 flow of water and are not desirable. If 

 one line of pipe under each bench is 



valved it should be sufficient. Valves 

 are, as a rule, not desirable in hot water 

 systems of heating, but are quite essen- 

 tial on extensive steam plants, where the 

 boilers are kept under constant pressure. 



NEV ORLEANS. 



A rainy spell, with an everyday tem- 

 perature above 90 degrees, is keeping the 

 florists quite busy pulling grass and 

 weeds on their places. Chrysanthemums 



