pPWSOB^pf P *l II Jll 4I,.I»P V •J^ffV^II'j-Mfi "i m% ;.Pp«i...iRCf1^%ip_i 'fmrrJl^.'^yijajTT!' 



The Florists^ Rcvkw 



OCIOBEB 3. Itl2. 



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TO MAINTAIN AN EVEN TEMPERATURE 

 in your greenhouses, use a 



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Foster Pressure 

 Regulator 



>, : ■ -sV^: Slow 



'**j»m" ■• 



That's the class you want. Attach this simple device to the steam main just inside of your green- 

 house and obtain the exact temperature desired by turning the adjusting nut "K" (see illustration) to 

 the "right" for greater heat, to the "left" for less. At whatever pressure the valve is "set," the pressure 

 at all times will be absolutely constant. Sizes %-inch to 2-inch have composition bodies; larger sixes, 

 to and including 10-inch, iron body, composition mounted. 



As an expert in your line, let us talk it over, as experts in ours. We recommend, we aid you in the 

 selection of the proper size, and should you require higher pressure than. 15 lbs., the most suitable type 

 of our other styles of Pressure Regulators would be recommended. 



"The Foster Pressure Regulators which have been installed in our greenhouses are 

 giving perfect satisfaction." Peter Reinberg. Chicago. 



FOSl^ER ENGINEERING COMPANY 



v'r 



5- 



PHILADELPHIA. PA., 508 Harrison Buildinjr 

 BOSTON, MASS., 161 Summer Street 



NEWARK, NEW JERSEY 



CHICAGO, ILL., 180 North Dearborm Street 

 PITTSBURGH, PA., 518 Park Buildins 



M. iifloD Ihr K»virw when von i»nT. 



twenty feet) to the farther end of the 

 house, where they should be connected 

 with the return coils. 



Except when a steam pump, trap or 

 similar arrangement is used, it is neces- 

 sary to have steam coils- from two to 

 four feet above the water level of the 

 boiler, and for small plants it is de- 

 sirable to use a gravity system. For 

 this reason hot water will be preferable 

 to steam in the house described. 



PIFINa IN SOUTHERN TEXAS. 



Kindly inform me how many square 

 feet of greenhouse space I can heat, 

 with the boiler I propose to install, to 

 a temperature of about 60 degrees when 

 the outside temperature is as low as 

 20 degrees above zero, which is about 

 the minimum here, in southern Texas. 

 I intend to put in about a fifty horse- 

 power, horizontal steam boiler, but will 

 use it for hot water, piping each of my 

 houses with one 2-inch supply and eight 

 2-ineh return pipes. I have two houses 

 at present, one of them 23x180 and 

 twelve feet to the ridge, the other 35x 

 100 and fifteen feet to the ridge. T 

 shall place my boiler so that the bot- 

 tom of it will be about eight feet be- 

 low the floor of the greenhouses. 



Which is more detrimental, to keep a 

 boiler filled with water during the sum- 

 mer months, or to drain it? Are rein- 

 forced concrete smokestacks as durable 

 as iron or brick ones? C. H. 



A good deal depends upon the quality 

 of brick used in a chimney, as well as 

 upon the character of the concrete, but 

 ordinarily a prop^ly constructed, re- 

 nforeed concrete chimney will be many 



READING QUARANTBED 



Wrought Iron Pipe 

 Nelson Valves 



ALL SIZES IN STOCK 



The Hartmati Company 



1231-5 No. Front St.. Philadelphia 

 M«intloii Tbf BoTlew wh»a yoo irrlU. 



SimoBJs Heating & Specialty Ca. 



Grand Rapids* Mich. 

 GREENHOUSE 



ONB POUND PRESSURE 



VACUUM HBATiNO SYSTEMS 



Me ntion The Review when you write 



M. WIN ANDY CO. 



Write for information on greenhouse 

 construction and our patented and 

 improved bench heating system. 



6236 N. LiHGoln Ave.,Cliica{o,E 



Mention The Review when you write. 



times more durable than an iron chim- 

 ney or even a brick one. It is better 

 to leave the water in a boiler during the 

 summer, than to drain it. 



Under the conditions mentioned, a 

 fifty horse-power boiler should heat 

 about 10,000 square feet of glass to 60 

 degrees. The radiation which it is pro- 

 posed to use is about right so far as 

 area is concerned, but unless run under 

 pressure there should be a considerable 

 increase in the number and size of the 

 flow pipes, as a 2-inch flow pipe will 



IMPROVED RETURN TUBULAR 

 FIREBOX BOILER 



Johnston Heating Co. 



131 B. 26th St., N0W York City 



MennoD fhe Keview woeitii yoa wnta _ 



HIGH-GRADE BOILERS 



g:L?oVne for GREENHOUSES 



STEAM and HOT WATER 



CIBUN & CO., '""^ft^S^V^ 



Mention The Review when you write 



not heat much more than 1,000 square 

 feet of glass. For the house twenty- 

 three feet wide, three 2 Ms-inch flo* 

 pipes and six 2-inch returns should ^'^ 



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