84 



The Weekly Florists^ Review* 



Mabch 4, 1909. 



rather an unsatisfactory answer, but it is 

 the only fair answer that can be given. 

 It is easy enough to specify a quantity 

 of radiation which we are sure will heat 

 the building, but in doing so there is 

 likely to be fifty per cent more than is 

 really necessary. 



' ' The apparatus -will deliver dry steam 

 to the coils, providing the outlets from 

 the steam dome are of suflBcient size. As 

 two boilers are to be used, we would con- 

 nect two 5-inch risers to each steam 

 dome, and these four 5-inch pipes will 

 connect into one 5-inch supply. One and 

 one-half inch will be sufficient size for 

 the main return. A 4-inch supply pipe 

 would be sufficient, but because of the 

 prejudice existing in regard to reduced 

 pipe sizes, it will probably be better to 

 use a 5-inch main, simply to prevent ad- 

 verse criticism. 



"If these boilers are connected with 

 one 5-inch pipe from each boiler, the 

 water will be carried into the radiation 

 by the velocity of the outgoing steam, 

 and nothing can prevent it. If the tap- 

 pings in the boiler are not 5-inch, it will 

 be necessary to use three 4-inch connec- 

 tions to each boiler and connect into the 

 5-inch main. ' ' 



My attention has been called to the di- 

 rections for heating a greenhouse 40x250 

 feet, with steam, given in the Plumbers' 

 Trade Journal, page 392. This is a sam- 

 ple of hundreds of cases of specifications 

 supplied to greenhouse builders by prac- 

 tical plumbers, men who no doubt know 

 how to run a sewer or wipe a lead joint, 

 but without any idea of the problems in- 

 volved in greenhouse heating. The state- 

 ment that eighteen 1^-inch pipes are 

 too few is well taken, but the suggestion 

 to use 7,650 lineal feet of 1^4 -inch pipe 

 is quite as wide of the mark, 5,750 lineal 

 feet being ^<jfe nearly the correct 

 amount. The constant used (four square 

 feet of glass for one square foot of radi- 

 ation) is the constant for hot water at 

 180 degrees, when a house temperature 

 ■ of 70 degrees is desired. The constant 

 which should have been used for steam 

 Avith a temperature of 58 degrees is six, 

 which, it will be noted, makes a decided 

 diflference in the amount of pipe to be 

 installed. 



The builder is unwise in this case in 

 requiring a plan which places all the 

 pipes under the benches. Overhead flows 

 carried along the purlins would have 

 given much better satisfaction. With hot 

 water, the plan would work, without 

 doubt, but it will give trouble with 

 steam. Two 2-inch flow pipes carried 

 along the purlins from the boiler to the 

 far end of the house, each to feed eleven 

 114-inch returns, will be all that is re- 

 quired. L. C. C. 



LEXINGTON, KY. 



The Market. 



Business remains about the same as 

 in the previous week. Roses are of good 

 quality and are cleaned up well. Carna- 

 tions have a satisfactory demand. Bulb- 

 ous stock is of good quality and meets 

 with ready sales. Freesias of fairly good 

 quality are on the market. Sweet peas 

 are good and sell readily. 



Several large funerals the last two 

 weeks cleaned out quantities of cut flow- 

 ers. Much stock is being shipped to the 

 small neighboring towns! Violets are be- 

 coming more plentiful and there will be 

 an abundance of them from now on until 

 Easter. All the florists are busy with 

 Easter and spring stock. It seems as if 



STANDARD 



Thermostat 



STYLE 1 



Diameter, 6 tnoliea 



PRICE, $6.00 EACH 



Arranered with binding poets to 

 be connected with wires, so as to 

 ring a bell. Can be set at any 

 two points on entire scale. Espec- 

 ially adapted for Greenhouses. 



Menasha, Wis., Jan. 9, 1909. 



The Parker Mfg. Co., 



Boston, Mass. 

 Gentlemen: Thermostat con- 

 tinues to work to entire satisfac- 

 tion and has earned its cost the 

 first month by saving 95.00 worth 

 of fuel. Yours very truly, 



Jos. B. Frokhlich. 



Parker Mfg. Co. 



Clifton & Shirley 8ts . 

 BOSTON, MASS. 



Mention The Review when you write. 



THE KROESCHELL BOILER 



18 THX ONLT PKBFKCT 



Hot Water BoUer 



Hot Cast Iron 



Has thin waterways. Heats quickly. It is the 

 most efficient, safest and most economical 

 boiler built. Very powertnl. 15 sizes, 

 beating from tbeismallcBt greenhouse up to 

 50,000 square feet of glass to 60 degrees, at 

 15 degrees below zero. 



Prices and catalogue on applicatioa. 



KROESCHELL BROS. CO., 51 Erie St., CHICAGO 



Mention The Review when you write. 



For Greenhouses 



^ MOREHEAD 



RETURN STEMN TRAPS 



Embody all the Modern Requirements in 

 a Steam Trap for Greenhouse Service. 



Simple in construction and operation, can be installed anywhere and occupies "small 

 space. Requires no special attention, no lubrication, repacking of joints and glands, or 

 repairs of any kind. Handles water at any temperature, never sticks, operation always 

 visible. Works automatically and absolutely reliable. Sent on 30 days' trial. 



MOREHEAD MFG. CO,, I043 Grand Rlier Aye,, Detroit, Micll. 



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DO TOD KNOW ABOUT THX 



Nartm Rockiag 6rate 



IT SAVES COAL 



288 Dearborn St. 

 CHICAGO 



MARTIN GRATE CO. 



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WRITB FOR CATALOGUE 



epffltERs 



U nited S tates Heaterrompany. 



DETROIT, MICH. 



