328 



HOKTICULTUEE 



August 30, 1913 



"•.^?* :. _>c^»)tei 



Up Chiminiey 

 Or Iimto Yoiuir Coils: 

 That^s Tlba Oyestioim 





■■•\ 



'^' 



>u- 





To still better show yon •x.i.tly how 

 the Arc comes up the side Hue openings 

 :in(I then commences its back and forth 

 fire travel, we cut the top off tbis fash- 

 ion. It Is peculiar looking, but it cer- 

 tainly does show things. 



IF it were possible for the heat that 

 goes up and out of your chimney to 

 show in visible dollars instead of in- 

 visible heat we would at once cut out 

 our advertising, and Burnham Boilers 

 would sell themselves. Seeing would 

 then be believing. 



By actual Burnham tests made over 

 and over again, the gases going up the 

 chimney have recorded themselves as 

 containing only the necessary amount 

 of heat to create the required chimney 

 draft. 



The same tests have shown that the 

 water in the coils was recirculated at 

 a velocity and temperature in excess 

 of results produced by other cast iron 

 vertical boilers of same size burning 

 an equal amount of coal. 



We have bought other boilers and 

 put them side by side with the Burn- 

 ham, and given each a most careful 

 comparative test under exactly the 

 same condition and same quantity and 

 quality of fuel. 



Of course business ethics would not 

 permit our mentioning here the names 

 of the boilers so tested. The fact, how- 

 ever, that in every test their circula- 

 tion was slower and the water a lower 

 average temperature, proved beyond all 

 doubt what we have stated over and 

 over again, that a greenhouse boiler to 

 be economical for greenhouse work 

 must be designed and made especi- 

 ally for such work. 



The Burnham is that kind of a 

 boiler. It is the result of over 40 

 years of greenhouse heating engineer- 

 ing thought and development. 



If you want a greenhouse boiler, the 

 Burnham's the logical boiler to buy. 



We can ship same day order is re- 

 ceived. 



Interior view of a No. ."iO Burnham See 

 tionnl Water Boiler. 



