132 



The Florists^ Review 



Mav -jr.. l'.r_'-_' 



Greenhouse Heating 



Subscribers are invited to write the 

 editor of this department with regard to 

 any details of greenhouse heating that arc 

 not understood. When information is de- 

 sired regarding the capacity of boilers, or 

 the amount of radiation required for a 

 greenhouse, the needed temperatures 

 should be stated in the inquiry, as well 

 as the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often help- 

 ful, also, to have a sketch showing the 

 location of the houses. 



HEATING FIVE HOUSES. 



We have Sfiit you u ]ilaii of tlic 

 groeiiliouses wli it'll we are going to 

 linild iiiid should like to have you sug- 

 gest a i)lau for the heating arrange- 

 iiieuts. There will he five liouses, each 

 18x90 feet. There is a slope to the 

 north of al)Out two and one-half feet. 

 Tlie l)oih'r room will he located at tlii' 

 lower side of the houses. Our i)lan is 

 to make four benches in each house. 

 The side benches will he two and one- 

 half feet wide and the two inside 

 henelies will bo four feet wide, with two 

 18-inch walks between them and the 

 side benches and a 12-foot walk between 

 the center benches. 



It is our plan to use tliree 2-inch 

 flows and eiglit 2-incli returns. One 

 flow will run on each side of the gutter 

 |)late and one through the center. The 

 i-enler flow will have four 2-inch returns, 

 two under each middle bench. Kacli side 

 liow will have two 2-iuch returns. We 

 want to run two main flows and two 

 main returns along the center walk. 

 How large shoiild we have the main 

 flow and return? The return will he 

 level with the top of the boiler. The 

 two side liouses, which join the boiler 

 room, will be heated sejiarately from 

 tlie boiler. 



We have an American Kadiator Co. 

 sectional ste.am holier, No. 8.22-7, with a 

 24x42-inch grate. The boiler also has 

 three 4 inch flows and six 4-inch re- 

 turns. We should like to be able to 

 carry fiO degre«^s in zero weather and 

 use natur.'il gas. The side walls of the 

 houses will have four feet of double 

 bojirds. with jiajier between, and two 

 fovi (if ylass. Tlie ridge will be eleven 

 feet liijili. Will this boiler be large 

 enough to tak(> i-aic of the heating 

 ]u-ohleMi .' B. G.- -W. Va. 



The sketch shows the boiler room to 

 be located in the middle of the north 

 house and exactly north of the center 

 of each of the other houses. From the 

 boiler room a P>foot walk runs ;icross 

 the middle of each house. For con- 

 venience the hot water mains should 

 run in this walk, but it will not work 

 out well. It would be preferable to run 

 the houses north and south, with the 

 boiler room at the north end. 



With houses piped as proposed, there 

 would be no difficulty in keeping up 

 :i temi)eiature of 60 degrees, when it is 

 10 below zero outside, exce]it in the 

 south hotise, which has two feet of ex- 

 posed glass. An additional return 

 would 1)0 required for 60 degrees in this 

 house. 



For .")0 degrees it will only be neces- 

 sary to run a 2'/^-inch flow jiipe on each 

 of the gutter plates and conuect each 

 tlow pijie with a coil of three 2-inch 



Kroeschell Boilers 



Are used by the largest, most 

 successful growers. You can 

 make no mistake by install- 

 ing a boiler that has won the 

 favor of men who are expeits 

 on greenhouse requirements. 

 Get a Kroeschell. 



ALL TYPES 



We make all types and sizes 

 of boilers for Hot Water and 

 Steam and can furnish a 

 Kroeschell Boiler that meets 

 exactly the healing require- 

 trents of your greenhouses, 

 insuring a dependable, eco- 

 nomical heating system. 



Encinecrinc Advice and Quota- 

 tions cheerfully submittod— 

 Lot us know your requiroments 



ORDER NOW 



Orders may be placed now 

 for delivery during summer 

 or fall of 1922. You can save 

 5 to 10 per cent if you pur- 

 chase a boiler during this 

 month. Take advaniage of 

 this offer. 



WHEN YOU BUY - QET A KROESCHELL 

 "THE BOILER OF UNEQUALED FUEL ECONOMY" 



KROESCHELL BROS. CO. 



444 W. Eri* Street 



CHICAGO, ILL. 



