r 



116 



The Weekly Florists'" Review* 



Mat 16, 1912. 



Where There ^ Condensation 



— there is need for a Morehead Bteam Trap. Condensation in 

 steam lines is akin to matter out of place — means wasted energy. 

 If your lines are sluggish — if your houses are not of uniform 

 temperature, write us. We guarantee to drain your lines per- 

 fectly — return the pure, hot condensation to your boiler without 

 pump or injector or make no charge for the trial. Obey that 

 impulse — write now. 



Morehead Manufacturing Company 



Dept. **M,*' DETROIT, MICHIGAN 



Haw Tork 

 OhlMgo 



Wlchlte. Kftn. n 

 New Orleans, La. 



— Stock! OuTied In- 



Philadelphla 

 Birmingham, Ala. 



Memphis, Tenn. 

 Los Anseles 



Chatham, Ontarl* 

 SanFianeisoo 



; 



Mention The Review when yon write. 



ij 



Greenhouse Heating. 



SuBSCEiBEBS are invited to write the 

 editor of the Heating Department, de- 

 scribing their troubles or asking any 

 questions regarding the heating of green- 

 houses, the piping or boiler-roona. But 

 please do not ask us to make a choice of 

 apparatus for you. Each boiler adver- 

 tised in The Review is a good boiler, and 

 the advertisers sell them on their merits. 



METHODS AND THEUt MEBITS. 



[An extract from an address by Montague C. 

 Wright before the Florists' Club of PhUadelpbla.] 



The heating of a greenhouse is cer- 

 tainly one of the most important fea- 

 tures. It is here that one shovels his 

 dollars into the furnace. Too much at- 

 tention cannot be given to the installa- 

 tion and management of the heating 

 system. At the present time there are 

 two mediums employed, steam and hot 

 water. Both have advantages, but I 

 believe it is pretty well established that 

 heating by hot water produces the best 

 results. Hot water produces a condi- 

 tion more like the heat generated by 

 the sun. Steam gives a more intense 

 heat. While steam has proved satis- 

 factory, it is a fact that the large flo- 

 rists are more and more reverting to 

 hot water as a heating medium. If 

 steam is used the best results are ob- 

 tained from 1^4 -inch pipes, and if hot 

 water, 2-inch pipes if the system is a 

 large one, or 3^ -inch pipes for a system 

 heating a small range of glass. The 

 pipes are placed along the sides of the 

 house, hung to the side walls or under 

 side benches. This, of course, depends 

 entirely on the arrangement of the 

 plant benches or beds. There should al- 

 ways be some pipe laid through the 

 center of the house. The number of 

 pipes required, of course, depends en- 

 tirely on the temperature required, the 

 amount of glass surface, the extreme 

 outside temperature of the locality in 

 winter, the exposed or protected sit- 

 uations of the greenhouse, the good or 

 bad construction of the greenhouse 

 itself and many other small details 

 which are used in designing a success- 

 ful and economical heating system. If 

 steam is used, it should be a low pres- 

 sure system, as the wear and tear on 

 the pipes should high pressure be used 



REHITOI TRAPS 



The sooner the better. There is no time like the present 

 time to make a change for the better. 



Bulletin No. 326- WF explains in detail, 



American Blower Gdmpany 



— ^— ^-^ DETROIT. MICH. • 



U. S. A. 



Mention The ReTlew when yon write. 



SI!I1T1I,LINEAWEAVER&0Q. 



COAL 



Aalkraelto. Bltaalawii, Coke aai •■■ Asal 



*^t%^^. PhiladelpMa 



Mention The Review when you write. 



would be great, to say nothing of the 

 too intense heat generated. 



The boilers may be set in a cellar the 

 level of which is considerably below the 

 level of the greenhouse. In such cases 

 the condensed water is returned to the 

 boilers by gravity. If the boilers are 

 placed on the same level as the green- 

 house, a pump of some kind must be 

 used to return the condensation. It is 

 the same with hot water. In a hot 

 water system there are two ways em- 

 ployed in generating the heat. The first 

 and one most used is to heat the water 



Florists' 



Pocahontas Coal 



Shipped anywhere from coaet to coast. 

 Let us quote prices on delivery at your 

 station. Write now for quotations on the 

 following grades. 



WEST VIRGINIA SPUNT 



YOUGHIOGHENY 



BRAZIL BLOCK 



POCAHONTAS 



EUREKA 



PLYMOUTH 



Northern States Coal & Mining Co. 



406 Fiiher Bldg. Phone Harrison 6753. Uhlc>«o 

 Mention The Review when you write 



directly in a boiler and circulate it 

 through the pipes in the greenhouse. 

 The other is to heat the water-in tanks, 

 using exhaust or live steam to heat the 

 water. In the latter case, the steam 



