72 



The Weekly Florists' Review* 



HKPTUMBIilB 15, 1910. 



without cost. Would this extra pressure 

 lielp thi' system any? J. T. 



I'lie effect of increasiii^; the lieight of 

 the expansion tank is to raise the tem- 

 perature at wliic'h the water in the 

 heater will boil. This makes it possible 

 to increase the amount of heat which 

 can be obtained for a given amount of 

 radiation, but if there is no trouble 

 from the boiling over of the tank, in 

 its present location, and if the amount 

 of radiation is suilicient to maintain 

 the temperature desired in the severest 

 weather, nothing would be gained by 

 giving the tank a greater elevation. 



PIPING IN PENNSYLVANIA. 



lMeas<' give nie some instructions 

 aliont the piping of my greenhouse. 

 It is :2].\72 and eleven feet high. It 

 is built alongside my old house, with 

 .in .11 -inch gutter lietween them. On 

 the other side there will be thi'ee feet 

 of gl.Mss. J intend to use a .S-inch flow 

 Mud twelve 2-inch returns. Would that 

 he enough or slunild the flow )»e larger? 

 The old house has a M-incli flow and 

 fifteen IVj-inch returns. 1 want n 

 night temperature of 't'2 to .">.■) degrees 

 ill zci'o weather. Wliat radiation 

 xhcnild the boiler have for the two 



houses, each 21x72x11 



f<. 8. 



There should be no ditticulty in main- 

 taining a temperature suitable for car- 

 nations with a .'i-inch flow and twelve 

 2 inch returns, but it will be found 

 more satisfactory if three 2Vo-inch 

 flows and nine 2-inch returns are used. 

 To heat two houses 21x72x11 feet, the 

 lioiler should be rated for heating 1.60(1 

 sipiare feet of radiating surface. 



IN THE CANADIAN NORTHWEST. 



IMeasc state the best method of heat- 

 ing the following houses with hot 

 water, in the Canadian northwest. The 

 liouses will be used for carnations. 

 The temperature outside is occasionally 

 4") degrees below zero. There are two 

 liouses, on the ridge and furrow plan, 

 running east and west. Each house 

 is 21\5!ixlUl), of King construction, with 

 five feet of glass in the sides and two 

 feet of boards. The height to the 

 gutter is seven feet; to the ridge, thir- 

 teen feet. The situation is rather ex 

 liosed. The floor of the boiler room is 

 six feet below the level of the gi*een- 

 liouse floor. 1 should like to use 4-inch 

 or .'Much flows, as we have :i quantity 

 of The^e; 2-incli rrtiiins would be 

 7>n'ferred. A. M. 



While the heating of the house un- 

 der the conditions outlined will require 

 .1 large amount of radiation, it is quite 

 certain that by using three '3-inch flow 

 pipes and eighteen 2-inch returns it 

 will be ;m easy matter to maintain the 

 temperature desired. If the end of the 

 house is exposed, the coils shoald ex- 

 tend around the end as well as along 

 the side walls. 



THE DIVIDED SEQION BOILOS 



gapskers;' 



Easy to Set Up. Easr to Operate. 



'Write for Catalogue. 



UNITED STATES RADIATOR CORPORATION 

 NfM Mficti, DNNKIM. N. T. IrMchn m aH lam cHiii 



Mention The Review when you write. 



This Adjustable THERMOSTAT 



$2.50 COMPLETE 



Outfit includes Thermostat, alarm bell, 2dr3- 

 battery cells, 150 ft. insulated wire, switch, 

 tape and staples. Directions with each outfit. 



Anybody Can Put It Up 



Simply set it at tlie minimuni temperature wHnte<l. Wlien that 

 temi»erature is readied it will ring a bell at tlio hea<l of your bed or 

 wherever you desire. 



No Worry -No Ruined Stock 



By sudden changes of temperature. 

 Order now before cold weather comes. Information and catalogue free. 



Manhattan Electrical Supply Co. 



188 Fifth Ave., CHICAGO, ILL. 



Mention The Review when you wrltp. 



Install the Best 



Return Trap You 



Can Buy 



It will save both money and 

 worry — all winter long. You can- 

 not afford any trap but a " Detroit." 



Get Our Proposition. 



American Blov/erGomrany 



• DtTROIT. MICM. 



S. 



Mention The Review when you write. 



Succegi>orii to the 

 John Davis Company 



No loss from sudden drops in 

 temperature if you use the 



Hughson Regulating Valve 



In eonnection with a steam heatinir plant. Carry 40 or 

 50 pounds pressure on the boiler and set the valve for 5 

 or 10 pounds— it will do the rest You'll bo free from 

 wprry next winter..if you follow this advice: " Install a 

 Huctaaon RecnUttinB Valve when makins; your 

 repairs." Ask fpr our Cataloirue. which also shows 

 Sttam Traps and other devices. 



HUGHSON STEAM SPECIALTY CO. 



5021-5023 S. State St., CHICAGO, ILL. 



Mention The Review when you write 



The Standard 

 Steam Trap 



Is acknowledged the 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. 



L HIPPARD, Youngstown, Ohio 



c 



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