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120 



The Florists' Review 



AoaosT fi, 1M0 



end of eaeh house, is taken through the 

 east house to the boiler. After enter- 

 ing the eoils the water runs downhill 

 all of the way to the beiler. 



There will be nearly 2,400 square feet 

 of radiation in the three houses, in- 

 cluding the mains, while 1,000 square 

 feet is ample for a 4-inch flow. By 

 running 4-inch flows to the middle 

 and the west house and a 3-inch flow 

 to the east house, satisfactory results 

 should be obtained. The flows an^ re- 

 turns should be alike. 



The general plan for the piping is 

 excellent under the circumstances. From 

 the amount of radiation it is judged that 

 about 60 degrees is desired in the houses. 



HEAT FOB CARNATIONS. 



I am sending you a sketch of my 

 greenhouses and should like to know 

 an arrangement of pipes to keep a 

 temperature for carnations when it is 

 40 degrees below zero. I am building 

 additions to both ends of the houses 

 and will take the roof off the old 

 ones and put two under one roof. There 

 are eighteen inches of glass in the side 

 walls and four feet of concrete. Is 

 steam or hot water heat preferable! 

 Should the boiler be at the west end 

 or at its present location? How large 

 a boiler will be needed? 



A. D. — Minn. 



As it is understood, the greenhouses 

 when rebuilt will, with the additions, 

 measure 26x125 feet, with a flower store, 

 14x26 feet, across the end, to be heated 

 for carnations when the temperature is 

 35 to 40 degrees below zero. 



Whether steam or hot water is to be 

 used will depend in part upon the at- 

 tention that can be given at night to the 

 fires. Bteam requires firing at least once 

 in three or four hours, especially in 

 cold weather, and the only safe way 

 is to have a regular night fireman, 

 which of course is not practicable in a 

 small place. On the other hand, while 

 hot water requires less care and is more 

 economical of fuel, steam heating sys- 

 tems can be 'installed at about two- 

 thirds the cost of hot water heating 

 systems. 



In the present case, there is one ob- 

 jection to the use of hot water and 

 that is that 1%-inch pipes are rather 

 small for coils 125 feet lii length. It 

 would also require the purchase of con- 

 siderably more pipe for the flows and 

 returns. On the other hand, the present 

 piping will answer for a steam heating 

 system. 



I am not sure what use is to be made 

 of the "flower shop." It is noted that 

 on the sketch it is mentioned as a stor- 

 ing room. If the arrangement is such 

 as to permit it, the heating pipes can be 

 run through this section the same as 

 in the remainder of the house. In case 

 less heat is needed than in the main 

 house, the middle coil need not be car- 

 ried into this part of the house, while, 

 if the arrangement of the house makes 

 it impossible to run the pipes along the 

 walls, short wall coils may be used. 



To heat the house, run three 2%-inch 

 ■flow pipes through the house, placing 

 one upon each outside wall and the 

 others three or four feet under the 

 ridge. 



For the coils use five of the 1%-inch 

 pipes on each side wall and place two 

 returns under each of the two middle 

 benches, making fourteen 1%-inch pipes 

 in the three returns. If separate coils 

 fire to be placed in the storing room, 



" Whit* Coal 



Black Coal 



i 



Help Save the "White 

 Coal of Industry" 



The boiling hot water resulting from condensation in 

 your steam lines is worth money. You have paid for 

 it in terms of coal. It contains valuable heat units. 

 It is the "White Coal of Industry**— it should not 

 be wasted. 



And it need not be wasted. The Morehead Back-to- 

 Boiler System will save it for you by returning it to 

 the boiler at temperatures as high as 400 degrees 

 Fahrenheit. It reduces coal consumption an average 

 of 20%. At the same time your steam will be 

 "drier" and more efficient; your production speeded 

 up and profits increased. 



Write today for facts and figures on what the More- 

 head System will do in vour plant. 



Morehead Manufacturing Company 



Dapt. "M" 



Detroit, Mich., U. S. A. 



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