II 



The Florists^ Review 



Septembbb 4, 1919. 



How the Burnham would look 

 cut through at the side. Note 

 the leases koIdk up through 

 the side flue opcninKS between 

 EACH SECTION. 



Note the chalk mark. That's 

 how the hot sases travel in the 

 boiltrs that have only back 

 flue openings. 



Burnham Boiler 



Side Flue Openings 



Prevent Back-Section "Gas-Scooting" 



CONSIDER what happens in a boiler that has no side 

 flue openings. 



The only way the gases can get up into the "upper 

 story," where the fire travel starts, is at the back. The 

 draft pulling on the hot gases, draws them away from the 

 front, against the back sections. They follow about the 

 course that our friend above has indicated with his chalk 

 line. 



The back sections are over heated. The front sections 

 under heated. 



Such uneven heating is not efficient heating. 



That's why the Burnham has side flue openings on each 

 side of the boiler, between each section in the Burnham. 



The oval illustration at the left shows how the hot gases 

 are led up into the "upper story," between each sec- 

 tion, equally heatiti£f each. 



No scooting of the gases to a single flue opening at the 

 back. No heating the rear sections at the expense of the 

 front ones. There are hard-headed common sense reasons 

 back of every point in the Burnham 's construction. 



Our catalogue points out 99 more of the 

 Send for it. 



reasons. 



i«3 IRVINOTON 



New York 



CHICAGO 

 Continental Bank RldK. 



Western Factory 



DES PLAINES. ILL. 



[or4& fWnham^. 



Builders of Greenhouses and ConierVatories 



SALES OFFICES: 



NEW YORK CITY BOSTON 



42nd St. Bldg. Little Bids. 



CLKVELAND 

 2063 E.4th St. 



TORONTO 

 Royal Bank Bldg. 



PHILADELPHIA 

 Land Title Bldg. 



MONTREAL 

 Transuoriation Bldg. 



SaMern Factory 



IKVINOTON, N. y. 



Canadian Factory 



ST. CATHAKINES. ONIARIO 



