APRir, 2, 1914. 



The Florists' Review 



163 



The Heart of a Greenhouse 



The boiler plays a most important part in the science of growing flowers. 

 As much care should be taken in the selection of a boiler as in choosing 

 the material for the building of the greenhouse. 



Do you give it this consideration? 



The Superior Return Flue Firebox Boilers for Greenhouee 

 heating excel all others. First-class material is used throughout in 

 the construction of all our Boilers. Fire-doors and legs are made 

 with solid steel rings and not cast iron, thus avoiding trouble due to 

 cracked door rings. We claim ours to be the most economical 

 Boiler on the market. The simplicity of construction is readily seen 

 from the cut here shown. The back doors are amply large for con- 

 venient cleaning. The workmanship is guaranteed to be first-class. 

 Terms and prices on application. The Superior is endorsed by the 

 leading florists. 



The SUPERIOR Boiler 

 has them all beat for Result* in Green- 

 house Heating. 



WRITE TODAY FOR CATALOGUE 



Superior Machine & Boiler Works 



. 



Superior and Green Sts., 



CHICAGO, ILL. 



Mention Th«> Rpvlpn* nrhpn Von »rr1t# 



WROUGHT IRON PIPE FOItSALE 



Rethreaded, thorouKbly overhauled, 14 ft. and up, 



gruaranteed free from splits or holes. 



It will par yon to correspond with as. 



ALBERT a DAVIDSON 



ei7-23 Uiisa AvesM. BROOKLYN, iEW TIM 



Mention The Review when yon write. 



Full Weight «' Reading'' 



Wrought Iron Pipe 



Sizes >i-iD. to 12-in. from stock 



FORD & KENDIGXO. 

 PHUADELPHIA, PA. 



91 North "lih St. 

 ^4th and Wood Sts. 



M>.-*««>i The Review wh^n wnn ittIt. 



4-INCH 



BOILER TUBES, 63 



cents per foot. 



Now and S. H. PIpo. All Sizes. 



Tell U9 your wants. 



nXXNOIS PIPK U MFG. CO. 



ai7 S. Jefterson Street, CHICAGO, ILL. 



M»n»tnn T^e Revleir irhen rnn wHt* 



directions mentioned, but from north- 

 east to southwest would generally be 

 preferred. A boiler rated for 1,800 

 square feet of radiation will generally 

 suffiee, and it will be well to use three 

 SVj-inch pipes in each house for flows 

 and connect with six 2-inch returns. 

 Place two of the returns under each 

 side bench in each house and one under 

 each of the two other benches. 



The depth for setting the side posts 

 will vary with the condition of the 



GREENHOUSE HEATING 



WITHOUT FUEL AND COST 



IS IMPOSSIBLE. BUT YOU CAN 



•U. 



BY USING THE 



Save 50% of the Fuel 



HONTSCH 

 BOILER 



J. P. DAHLBORN 



GENERAL AGENT FOR THE U. S. A. 

 217 HacktNssck PI. M., WEEHAWKEN, N. J. 



Phone C5".» W. Union 



Mention The Rsrlew wban you wrtt» 



soil and the care given to supporting 

 the ridges of the houses. As a rule a 

 depth of three feet is ample. For sup- 

 porting the middle gutter, 2M:-inch 

 pipes w^ill be amply large. It should 



answer if they are set two feet deep 

 and the concrete is. eighteen inches in 

 circumference. The pitch given the 

 pipes need not be more than one inch 

 in ten feet, if they are well supported. 



