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The Weekly Florists' Review* 



January 31, 1907. 



Purman Boilers for Greenhouse Heating: 



Valuable Oatalosrue on Modern Steam and Hot Water Heating, 

 mailed free on request. Address 



THK HKRENDKBN MANUFACTURING COMPANY, 

 Dept. R. Geneva. N. T. 296 Pearl St., New York 



FURMAN BOILERS have been awarded Certificate of Merit at five 

 different Florists' Conventions. They have a record of 20 years. Over 

 26,000 in use. SEL LINO AOKNTS : 



EDWARD S. DEAN, Bloomlngton, 111. 



HENION & HUBBELL, 61 K. Jefferson St., Chicacro. 



J 



Mention The Review when you write. 



Greenhouse Beating. 



PIPING A NEW HOUSE. 



I am building a greenhouse 21x104. 

 I have planned to use a 2 1^ -inch flow 

 with twelve 2-inch returns, four under 

 each bench. Have I allowed for enough 

 pipe for Connecticut climate? 



L. C. A. 



You do not state the temperature you 

 desire, but figuring your house on a basis 

 of 60 degrees, if you use a 3-inch riser 

 (2%-inch is too small) and twelve 2-inch 

 returns, as you have planned, you will 

 not go far wrong, assuming that you are 

 to use hot water at 180 degrees. If you 

 use less heat more pipe will be required, 

 and if you require a temperature of 70 

 degrees the piping should be increased 

 accordingly. L. C. C. 



GAS FOR FUEL. 



I would like to know if either natural 

 or manufactured gas is used for fuel 

 and what florists think of its value as 

 compared to coal. Is it harder on the 

 boiler and does it cost more or less 

 than coal? W. P. R. 



Yes, natural gas is frequently used 

 for greenhouse heating in localities 

 where this fuel is abundant and cheap. 

 It is a question how much one can af- 

 ford to pay for" it in comparison with 

 coal, for the gas makes no ashes to be 

 removed, requires no night fireman, and 

 when intelligently used is no harder 

 upon the boiler than other fuels produc- 

 ing heat of equal intensity. If the value 

 of the gas is to be determined solely by 

 its heat producing power, then it must 

 be figured that when the cost of 30,000 

 feet of gas exceeds the cost of a ton of 

 coal it is cheaper to produce the heat 

 from coal ; but as above suggested the 

 gas has other advantages which must be 

 weighed against the cost of coal. 



L. C. C. 



INSUFFICIENT RADIATION. 



We have installed a heating plant at 

 our house which is not doing well. The 

 overhead system of piping is used. There 

 are two 2-inch flows, one under each 

 ridge, with a rise of nine feet above the 

 heater, then gradually rising to the other 

 end of the house. There are four 1%- 

 inch returns along the south, east and 

 west walls; also four 1^4 -inch returns 

 through the center of the house. The 



THE JOHN DAVIS COMPANY 



Halst«d,22d«nd Union Sts , CHICAGO 



MANUFACTURERS OP 



Reducing Yilres, Back Pressure Valies, Steam Traps, Mean Goods 



Tbls Is wliat one of our customers tMnks of our valves: 



Lincoln, III., January 6, 1)N)6. 

 The John Davis Company, Cbicag-o, 111. 



Gentlemen:— You can stroafrly and unhesitatinrly recommend the 

 " Eclipse " piston type reducing valve to florists. We have two purchased 

 -5f you last year. We would not have them out for double their cost arfd 

 find them as sensitive as a watch. We will be in Chlcagro soon to take up 

 the vacuum system with you. Yours truly, 



W. H. GcLLETT & Sons. Florists. 



DO TOU SNOW ABOUT THX 



martin Rocking Grate 



IT SAVES COAL 



MARTIN 6RATE GO. "^^^'- 



Mention The Revlfw when yon write. 

 Write Us Your Wants in 



Heating Specialties 



We supply everything needed for a 

 GreenhouHe Heating Plant. Booklet 

 for the asking. 



HENION & HUBBELL 



61-60 N. Jefferson St., CHICAGO. 



S. WILKS MFG. CO. 



Manufacturers of 



Greenhouse Boilers 



35th and Shields Ave., CHICAGO, ILL. 



Mention The Review when .vou write. 



center run of returns is fed by two 

 1-inc'h pipes taken from the two 2-inch 

 flows. The returns along the wall are 

 fed by these same 2-inch flows. Our 

 heater is a No. 20 Wilks hot water 

 heater. The returns enter it through 

 throe 2-inch pipes. 



Our house is 29x48, double-span, ten 

 feet to the ridge. The south end of the 

 house is glass from the wall up and the 

 wall is three feet high. There are walls 

 three feet high on the east and west 

 sides and three feet of glass. The walls 

 arc made of cement blocks. There is an 

 office and workroom at the rorth end. 

 The heater is in the basement below the 

 office and workroom, nine and one-half 

 feet below the highest point in the sys- 

 tem. 



The expansion tank is two feet above 

 the highest point in the system and is 



?^. UNIVERSAL 

 FUEL BURNERS 



It not only bums any kind of fuel but g'ves the 

 best possible results to he obtaineH from it. Write 

 to us for caiaK pue aiid full infuimation. 



COLUMBIA HE4TER CO , Belvidere, III. 

 Sales Dept., 36 Dearborn St,, Cbicasro, 



Mention The Review when you write. 



conr.ected to tlie flow pipe nine feet 

 above the heater. There is a Honeywell 

 circulating apparatus connected to the 

 system jus-t below the expansion tank 

 and is also connected to the expansion 

 tank. 



Have we u«ed the right size of pipe 

 and enough of itf Is the pipe put in 

 right? Could v>e leave our piping as it 

 is and by installing a steam heater use 

 hot water during the spring and fall, 

 then when severe weather sets in draw 

 olT the water ar.d use steam f If not, 



