86 



The Weekly Florists^ Review. 



Fkbbuabt 1, 1912. 



SNI11,LI1IEAWEAVER&C0. 



COAL 



Aathneite, Bltamlaoai, Coke aad Om teal 



rnut^uudinc. Philadelphia 



Greenhouse Heating. 



LEAD JOINTS THAT LEAK. 



I have just equipped two new houses 

 with lead joints and they leak badly. 

 Will someone give me his experience 

 with lead joints and state whether they 

 can stand the expansion or not? 



H. H. 



If properly made, and if the pipes are 

 so supported as to allow them to ex- 

 pand and contract, lead joints will be 

 found fairly reliable, but the use of 

 oakum and iron filings is preferable. 

 Some recommend, as a still better way, 

 the use of wrought-iron pipe with screw 

 joints. As a rule, 24nch pipe will be 

 found best for the returns and, if the 

 houses are more than seventy-five feet 

 long, one or more 214-inch pipes should 

 be used for the flows. Except in short 

 houses, one flow will answer for from 

 800 to 1,200 square feet of glass. 



SIZE OF BOILER. 



I wish to thank you for the advice 

 given me in The Eeview of December 

 28, page 86, regarding the heating of 

 my greenhouse. I intended at the time 

 to ask what size of hot water boiler 

 would be required to do the work. Will 

 you -please answer that question now? 

 The house is 20x75 feet, five feet to 

 the eaves and twelve feet to the ridge, 

 with three feet of concrete and two 

 feet of side glass all around. It is 

 divided by two partitions. I am lo- 

 cated in northeastern Illinois. E. P. 



A house 20x75 feet, with two feet 

 of glass in the side walls, to be heated 

 to an average of 60 degrees in zero 

 weather, will require a heater rated 

 for about 900 square feet of radiating 

 surface, if economy of fuel is desired. 

 About 725 square feet of radiating sur- 

 face will actually be required, and it 

 is always well to add from one-fourth 

 to one-third in determining the size of 

 the boiler. 



WATER GETS LOW IN BOILER. 



We have six greenhouses, two run- 

 ning north and south and four running 

 east and west. They are heated by a 

 boiler rated for 4,350 feet of steam 

 radiation. The length of the houses 

 is as follows: No. 5, running straight 

 north from the boiler room, is fifty feet 

 long. On the west side of this house 

 and the boiler room is house No. 6, 

 which is 100 feet. No. 7, running west 

 from the south end of No. 6, is 117 

 feet. Nos. 8 and 9, the next houses 

 northward, are each 125 feet. No. 10, 

 a lean-to on the north side, is also 125 

 feet. 



All these houses are heated with 2- 

 inch pipe. There are two supply outlets 

 from the boiler. The outlet on the 

 north side of the boiler is 3-inch pipe, 

 which runs along the eave plate on the 

 east side of house No. 6 to house No. 9; 

 then west, through No. 9, where, on the 



NO SECTIONS 

 EASY TO SET UP 

 Made of Boiler Plate 

 Absolutely Safe 

 C 4NNOT CRACK 



Has Thin Water Ways 

 Vertical Circulation 

 The Lonsest Fire Travel 

 Heats Quick, Ea»y to Clean 

 More Direct Surface than 

 any Other Boiler 



CAST IRON BOILERS CRACK 



.^^my/im,j(^.3an^SiTy 23, 1912. 



Oentlemen: 



Our large ct«t-lron 8eotioni<J. boiler 

 cracked one section and the header last Sun- 

 da:'. It pnened to turn cold about the Bame 

 time th^ttthe hreaV occured. By Uonday night 

 it was 14 degrees below aero. However, by 

 putting up coal atoTes, oil stoTea, liwpa 

 and pushing up tha nirall furnace we have 

 nanased to keep mostof our stook in pretty 

 good shape, and our total loss, furnnce and 

 all, will be between (1500 and $600. Just 

 luck that it was not all ?one. 



Hew Kroeschell boiler ordered by tele- 

 graph Sunday; shipped Uonday; reached here 

 on Friday; hauled to greenhouse on Saturday, 

 and started a fire Sunday; just seven daj's 

 and ten hours after the accident. When deal- 

 ing with people who will deliver a boiler as 

 rk as that you cannot give up. 



Pipe Fittings -- Imico Boiiers 



-FOB GRXXNHOUBK WORK- 



ILLINOIS MALLEABLE IRON CO. 



1801-18S5 DIVXBnET BODUEVARD CHICAGO 



ALWAYS MENTION 

 THE 



FLORISTS' REVIEW 



WHEN WRITING 

 ADVERTISES 



i-« ..;. 1. ^■'.-■j..;.-i..ti 



