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84 



The Weekly Florists^ Review* 



February 16, 1911. 



Montgomery County Coal Co. 



GOAL OP BHIRIT 



FISHER BUILDING, CHICA.GO 



Mention The Review when you write 



SMITH, UNEAWEAVER& CO. 



C O'A L 



AnthrMite, Bltumlnons, Coke and Gas Coal 



TrZ'SnfSSn.. Philadelphia 



Greenhouse Heating. 



IN WASHINGTON STATE. 



I am sending you a sketch of our 

 proposed greenhouses, each 22^^x135 

 feet and twelve feet high to the ridge. 

 They will run east and west. We 

 should like to know how many square 

 feet of radiation will be required to 

 maintain temperatures of 60 and 50 

 degrees, when the outside temperature 

 is 12 degrees. We are located in the 

 western part of Washington state. We 

 also wish to know about the piping. 

 We will use hot water and will have 

 the piping under the benches. 



N, H. 



The sketch shows two houses, each 

 22V^xl35 feet, with one wall in com- 

 mon and with the north wall of one 

 house of solid boards, five feet high, 

 and the south wall of the other house 

 of the same height, but with the upper 

 half of glass. A boiler with a rating of 

 2,400 square feet of radiating surface 

 should be used. For each house use 

 three 2i^-inch flow pipes, placing one 

 on the center posts, about two feet 

 below the ridge, and the others on the 

 plates. In the south house, to be 

 heated to 60 degrees, use nine 2-inch 

 returns. Use six 2-inch returns in the 

 north house. Place one-third of the 

 returns under the benches and the 

 others on the walls or under the side 

 benches. 



THBEE MISSISSIPPI HOUSES. 



I have two houses, each 20x65, run- 

 ning north and south, with a lean-to 

 shed extending across their north ends. 

 I wish to place the boiler in the north- 

 east corner of the shed, run a main east 

 and west along the shed and take off 

 flows to go into each house. I also 

 wish to add another house, 20x65. As 

 the floor of the boiler pit can not be 

 more than two feet below the ground 

 level, I wish to hang the flows on the 

 purlin posts, as high as possible, and 

 place the returns on the side walls. I 

 want to use 2-inch pipe for the returns, 

 as I have that on hand. How large 

 should the main from the boiler be, in 

 the shed, and how large should the 

 flows be? What size of sectional boiler 

 will be required for the three houses? 

 The temperature needed will be 60 de- 

 grees, when it is zero outside. 



J. B. A. 



The boiler for heating three houses, 

 each 20x65 feet, to 60 degrees in zero 

 weather, should be' rated for 2,000 

 square feet of radiation. Take off a 



Special Thermostat 



style II 



For Greenhouse Use 



Style 11, diameter 6 in., price $10.00 each 



Arranged l-witb hernaetlcally 

 sealed case; !Bafe from the hose 

 or dampness. Padlocked; cannot 

 be tampered with. 



ArraoKed with an Indicating hand, 

 which will correctly Indicate the ac- 

 tual greenhouse temperature at all 

 times. It also has two contact hands 

 to be set with the set-stud through the 

 glass, one hand being set for the high 

 and the other for the low temperature. 

 Kings an alarm anywhere you please 

 to locate the bell whenever the tem- 

 perature hand reaches either of the 

 other hands. 



Anybody can put it up ; only a screw- 

 driver needed. All necessary direc- 

 tions with each Instrument. 



This is the best instrument 

 ever made for the special con- 

 ditions in sreenhouses. Order 

 today. 



Standard Thennometer Co. 



(Successors to Parker Rf far. Co.) 

 66 Shirley St., BOSTON, MASS. 



Mention The Review when you write. 



The Standard 

 Steam Trap 



Is acknowledged tLe best for the 



florist, because it is durable and does 

 its work without trouble and annoy' 

 ance, saving its cost by the economy 

 in coal bills. 



t HIPPARD CO., Youngstown, 0. 



Mention The Review when yoa ^rite. 



Harrlsburg- Franklin Coal Co. 



1216 FISHER BLD6., CHICAGO 



The Better Grades ONLY of 



INDIANA AND ILLINOIS COALS 



Preparation and QuaUty as they should be. Write to-day for Prloes* 



Mention The Review when you write. 



3-inch main to heat the east house, and 

 a 4-inch main for the other two houses, 

 using main returns of the same size. 

 For each of the houses run two 2V2- 

 inch flow pipes on the purlin posts, giv- 

 ing them a slight fall. Each of the 

 flows should feed a coil of five 2-inch 

 returns. Care should be taken to keep 

 both flows and returns as high as 

 possible. 



HABD OB SOFT COAL? 



The last few months have been un- 

 usually cloudy and, as a result, carna- 

 tions have not done well. One reason for 

 this is a dirty roof, caused by the soot 

 from soft coal, without enough rain to 

 wash it off. Now, I should like to know 

 the relative cost and heat making qual- 

 ities of soft and hard coal. Sort coal 

 in this Ol^io town costs from $7.50 to 



Ford & Kendlg Co. 



"Spellerized" Wrought Pipe 



Bspecially adapted for Greenhouse Work, 

 Flttlnes, Valves, Tools, etc. 



1428-30-32 Callowhill St. PHILADELPHIA. PA. 



Mention The Review when you write. 



$10.50 per hundred bushels for run of 

 the mines. My chimney is thirty-four 

 feet high from the top of the boiler. 

 I use a No. 1 Kroeschell hot water 

 boiler. Would that height of chimney 

 be sufficient for hard coalf The chim- 

 ney is a steamboat boiler flue, fourteen 

 inches in inside diameter. W. C. S. 



The best grade of soft coal is capable 

 of furnishing as much heat as hard 



