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84 



The Weekly Florists' Review* 



January 4, 1912. 



SNlTV,LINEAWEAVER&CO. 



COAL 



lathraelte, BitnmlBoai, Coke and 6m Ooal 



Philadelphia 



"West End 

 rrast Bnlldlnar. 



Greenhouse Heating. 



RXJN THE FLOWS DOWNHILL. 



In your answer to an inquiry in The 

 Review of December 14, page 123, you 

 gave an explanation of the advantages 

 that are secured by connecting the ex- 

 pansion tank with the flows rather than 

 with a return pipe. At what part of 

 the flows would you connect the tank? 

 In my heating system the highest point 

 is at the opposite end of the green- 

 houses from the boiler. I use a heat 

 generator. I am troubled with air in 

 the pipes. I find it necessary to let the 

 air off every time I start the fires up 

 at night. There are two air valves at 

 the highest point in the piping. The 

 heat generator is attached to the pipe 

 leading to the tank and is taken from 

 the return near the boiler. Please ad- 

 vise me «s.to the best way to get rid 

 of the air. W. J. H, 



There is always more or less trouble 

 from the pocketing of air in the flow 

 pipes when the uphill plan is used for 

 the flow pipes. This is entirely done 

 awav with when the flows are run down- 

 hill.' 



All that is necessary in the present 

 case is to raise the boiler end of the 

 flow pipes so that there will be a fall 

 of one inch in ten or fifteen feet. If 

 this brings the highest part of the 

 flows within a foot of the glass, it will 

 be necessary to lower the farther end 

 of these pipes, so that they will be at 

 least twelve inches from the glass at the 

 boiler end, and eighteen inches "would be 

 better. Then connect the present ex- 

 pansion pipe with the highest part of 

 one flow and run a smaller pipe, to act 

 as a vent, from this pipe to the high- 

 est point in the other flow pipe. The 

 generator will act in the same way as 

 at present and should be located, of 

 course, on the expansion pipe, betwe«n 

 the highest point in the flow pipe and 

 the expansion tank. It will be a good 

 thing to use a by-pass with a valve in 

 connection with the generator, so that 

 in mild weather the system can be run 

 without pressure. 



UNSATISFACTORY PIPING. 



Enclosed you will find a diagram of 

 the heating system in our greenhouse. 

 In our coldest weather we had to fire 

 hard to keep the north room at 50 de- 

 grees and the south room runs from 5 

 to 10 degrees colder, even with the 

 door in the glass partition open. There 

 are two valves in the piping for the 

 south room, one where it leaves the 

 heater and one where it enters the 

 other return. We expected that we 

 could heat the north room to 60 de- 

 grees easily and hold the south room 

 down to 50 degrees, but we cannot do 

 it, and think the trouble must be in the 

 connection of the returns. The flows 

 run downhill. The expansion pipe con- 

 nects with the lower pipe at the end 

 of the middle bench, about four feet 



AVOID A FREEZE-UP 



TblB Standard Tbermostat will aav • your stock 

 from a treeze-up. The Indlcatlnj band shows the 

 actu»l temperature at aU times. When It reaches either 

 of the other hands It 



RINGS AN ALARM 

 anywhere you please to locate the bell. 



J. B. HcFarland, of Granger. Wash., writes 

 ns as follows:—" I would like to say a werd 

 of praise for the thermostat. I hare had 

 mine and used It for two years In connec- 

 tion with the orchard heaters. It has always 

 given perfect satisfaction. Althoutrh I am 

 not over enthusiastic on the orchard heating 

 propositloj, I would not do without th* 

 frost alarm for twice the price. 



"At this time of the year, when the 

 weather Is so uncertain, I place the thermo- 

 stat in the packing shed. I can go to sleep 

 at night feeling sure that if the weather gets 

 too 8cv*re I will be awakened and can go 

 and take measures to protect the fruit in 

 storage: or If a fire should break out I 

 would be aroused." 



The Standai<d Thermostat Is Just as 

 useful in the greenhouse as In the orchard. 



Anybody can pat it up— only a screwdriver needed — 

 and full directions with tach Instrument. 



Style I. 



style I. diameter 6 inobes, 

 prtoe, $5.00 each. 



STANDARD THERMOMETER CO 



65 Shirley St., BOSTON, MASS. 



• ) (Successors to Parker Mfg. Co.) 



Mention The Review when you writ* 



TkeUten 

 Of He.... 



I 



Sncceasors to the 

 John Davis Company 



Hughson Regulating Valve 



V 



are all satisfied with the lesults it has given, and many 

 duplicate orders is the^proof . Thla Valve will main' 

 tain a steady inressure on che^low side, no matter 

 how the initial presstire fluctuates. By carrying 40 or 50 

 pounds pressure on the boiler and getting the valve to 

 carry 6 or 10 pounds on the line, you always have a 

 reserve to fall back on in rase of a sudden drop in tem- 

 perature. Our tiB-w eatalOBue Is lust out and if 

 you contemplate making any changes you had better 

 get one— it is yours for the asking. 



We Also Make Traps and Other Devices. 



HUGHSON STEAM SPECIALTY CO. 



5021-5028 S. State Street, CHICAGO 



Mention The ReTiew when tod write- 



COAL! 



BETTER TO SAVE COAL 

 THAN BUY IT CHEAP 



Oir AitiHitk Electric Condensation Pnmp 



SAVKB 20% TO 50% COAL. 



Draws Water and Air out of the Heating 



System. 

 Returns Condensation Water to Boilers. 



Makes Heatins Uniform 

 SAVES LABOR 



Write for particulars. 



CHICAGO PUMP CO. 



1050 Fulton Street, CHICAGO, ILL. 



Mention The Review when you write 



Pipe Fitfings — Imico Boilers 



FOR GRKXNHOUSS WORK 



ILLINOIS MALLEABLE IRON CO. 



1801-1825 DIVXR8KT BOULKVARD CHICAGO 



Mention The ReTiew when yon writs. 



from the heater, and when we are fir- 

 ing hard it gets warm for six feet up 

 or more, which we also think is the 

 effect of the crowded returns. This 

 winter we are using both rooms for car- 

 nations and geraniums. Our location 

 is central Michigan. J. F. T. 



The sketch accompanying the forego- 

 ing letter shows a house 15x20 feet, 



CAN YOU 



MAKE OUT A LIST NOW 



of your needs in PIPK and F11T1IIG8, so that 

 we can estimate on them ? 



It may save you money. 



WHETSTONE & CO. 



o il FUbert Street, Philadelphia, Pa. 



Always mention the Florists' Review when 

 writing advertisers. 



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