84 



The Weekly Florists' Review, 



JUNB 13, 1912. 



IMPROVED RBTURN TUBULAR 

 PIRBBOX BOILBR 



Johnston Heating Co. 



131 B. 26th St., New York City 



MentlOD 'Hie Review when vou wnte 



plants be both ways? I should like to 

 pipe it with 1^-inch pipe for the re- 

 turns. Would one 2-inch flow supply 

 them? Please tell me how many pipes 

 will be needed, their sizes and how to 

 arrange them. The boiler will be about 

 forty feet from the near end of the pro- 

 posed house. I should like to have the 

 house of a width to take four lights 

 of 24-inch glass on each side, with no 

 side lights. The roses may not pay, so 

 I want to build as cheaply as possible 

 and be nearly right. I ^m located in 

 northern Nova Scotia. W. C. 



More satisfactory results, of course, 

 could be obtained in a larger house, but, 

 if it will not be possible to erect one 

 more than twenty-five f ^t long, a width 

 of fourteen feet would answer to carry 

 out the arrangement suggested. The 

 middle bench could then be four feet 

 wide, which would answer for either 

 three or four rows of plants. A distance 

 of one foot each way does well for 

 roses, but it may be a little more or less 

 than that distance, according to the 

 varieties, size of plants, etc. 



Either use one 2 1^ -inch flow pipe 

 under the ridge, or one 2-inch flow upon 

 each side plate. If 1%-inch pipe is 

 used for the returns, five under each of 

 the side benches will be required. In 

 case the farther end of the house is ex- 

 posed, the return coils should start at 

 the middle of the end of the house and 

 follow around the walls along each side. 

 If you can place the coils at least three 

 or four feet above the top of the heater, 

 and if there is no door in the farther 

 end of the house, the use of overhead 

 flow pipes may be dispensed with. 

 Merely run a 2V^-inch flow to the near- 

 est corner of the house and connect it 

 with a coil of six 1%-inch flow pipes, 

 which should be carried around three 

 , sides of the house and then connected 

 with the boiler by means of a 2 1^ -inch 

 return. 



A SMALL DAKOTA HOUSE. 



I am preparing to build a greenhouse, 

 18x40, with 7-foot walls. I have a 

 second-hand boiler, rated for 1,050 

 square feet of radiation, and a lot of 

 good second-hand 3-inch pipe that I 

 want to use. I should like to ask your 

 expert how to pipe the house for the 

 best results, using the 3-inch pipe. I 

 propose to have three benches and ttf 



Oreenhouse 

 Boiler Room 

 Insurance 



** 



^jrm 



RETURN TRAPS 



protect against slug- 

 gish steam lines. Pro 

 tect the boiler against 

 impure feed water. 



Cradensation makes purest land of boiler feed water. " Detroit " Retnrn Traps 

 will take it ont of the steam coils and retnrn it to the boiler at practically the 

 same temperatnre at which it is condei&ed. They save fnel and engineer's time 



Bulletin No. 326- WF is yours upon request. 



American Blower Gompany 



— — DETROIT. MICH. ■ 



U. S. A. 



Canadian Sirocco Co., Ltd., Windsor, Ont., Manufacturers for Canada 



Mention The Rerlew when you write. 



Make Your 

 Boiler an Asset, 

 Not a Liability 



A boiler costs enough so that every florist should be anxious to 

 get the most possible for his money; he should closely investigate sev- 

 eral styles before choosing. The more you investigate the more sure , 

 it is that you'll buy the Superior Standard. It was designed spec- 

 ially for greenhouse work after a close study of what was needed. It 

 is easily cleaned, although it has more flues than any other boiler, but 

 —more flues give more heat ; more flues require less fuel ; the water 

 heats quicker and hotter because the volume of water heated by each 

 flue is smaller. All we ask is a chance to show you. 



Write today for Catalog^ue 



SUPERIOR MACHINE & BOILER WORKS 



Superior and Green Sts., CHICAGO, ILL. 



place two flow pipes under the ridge, 

 with three returns upon each side wall 

 and four under the middle bench. "Will 

 that be sufficient piping to heat the 

 house, with an outside temperature of 

 20 degrees below zero? J. C. T. 



In the description of the house it is 

 ; stated that the walls are seven feet 

 high, but there is no intimation of the 

 amount of glass in them. Presuming 

 that there will be about four feet of 

 ; glass on the sides, the full amount of 

 ] pipe stated should be used. The ar- 

 rangement proposed would give good 



results, but, everything considered, it 

 would be better to put in only one flow 

 under the ridge and have one on each 

 plate. Then there could be three re- 

 turn pipes in each of the coils. 



While the use to which the house is 

 to be put is not stated, and while there 

 may be some good reason for having the 

 walls seven feet high, yet, when the 

 cost of construction is considered, as 

 well as the expense of heating so much 

 glass in a Dakota blizzard, it would 

 seem advisable to make the walls not 

 to exceed five feet high, with only two 

 feet of glass. Only ten pipes would 



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