72 



The Weekly Florists' Review* 



July 20, l»il. 



M'-ntlon The Review when vou wtiw 



end connect' it with two 1^4 -inch 

 steam or two 2-inch hot water re- 

 turnH. 



To heat the two houses, 32x150 feet, 

 :uid tlie hotbed, 6x150, there will be 

 iibout 2,600 square feet of steam ra- 

 diating surface, and for this a forty 

 horse-power boiler will be required. 

 With hot water, fully 5,000 square feet 

 of radiation will be necessary and a 

 hot water boiler rated at not less than 

 6,000 square feet will be needed. 



FROM CLOSED TO OPEN SYSTEM. 



I have three greenhouses, heated by 

 a Hitchings boiler. No. 18, old style. 

 The boiler is connected with the piping 

 in the houses by a 3-inch main. The 

 boiler is at one end of houses No. 1 and 

 2, and the highest point in the piping 

 is at the opposite end of house No. 3; 

 in other words, the highest point is at 

 that part of the system farthest from 

 the boiler. I want to change the sys- 

 tem from closed presaure to open pres- 

 sure. Can this be done by merely in- 

 stalling open tanks over the highest 

 point? If not, what must be done! 

 There are air valves at the farther end 

 of the pipes. 



House No. 1 is 14x100 and the roof 

 has a pitch of seven feet; 2-inch pipe 

 is used in this house. Houses No. 2 

 and 3 are each 8x100, with a pitch of 

 six feet; each of these houses contains 

 eight runs of 1-inch pipe. 



I wish to connect with the same sys- 

 tem a small round boiler. In moderate 

 weather, in this mild Virginia climate, 

 the small boiler "alone would answer, 

 and in severe weather it would help. 

 How shall I make the connections? 



ne Users 

 Of Tke.». 



L 



SncceHHors tn the 

 John Davis Cumpany 



Hughson Regulating Valve 



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

 duplicate < niers is thH proof. Tliis Valve will main* 

 tain a steady pi esaure on ttie low side, no matter 

 how the initial pressure flurtuates. By carrying 40 or 59 

 pounds pressure on the boiler and setting the valve t* 

 carry 5 or 10 pounds on the line, yon always have a 

 reserve to fall back on in ra«e of a siitldpn drop in fr-m- 

 peratnre. Our new oatalosrue is Just out and if 

 you ront«>niplate makiuK any cuanges yuu had better 

 get one — it ia yours for the asking. 



We Also Make Traps and Other Devices. 



HUGHSON STEAM SPECIALTY CO. 



5021-5023 S. State Street, CHICAGO 



UeuuoD Ibe Review when vou wriw> 



BOILER FLUES 



4-inch and other sizes, cleaned and trimmed 

 ready for heating, retubing boilers or gutter 

 oosts. Pricrs right. Also sales agents for Siuttle's 

 Patent Clamp for joining flues. 



1405 Wells St., CHIC AGO. ILL. 



Telephone North 572 



Rednce Your Coal BiU 'S^^^Sftl^'^L^ 



your heat 50 to 100 per cent with our 



SriAM aRCUlATING AND CONOEKSATION PUMP 



us^d in connection with your 

 8TXAM HXATINO PLANT 

 Sold under guarantee. Write for description 

 and prices. 



10S9 rulton St., 

 » CHICAGO, ILL. 



Chicago Pump Company 



Will it matter if the water level in 

 the smaller boiler is below that of the 

 larger boiler? M. A. W. 



It is not advisable to try to use 1- 



We have genuine wrought iron pipe 



and *'P" quality vakes 



and fittings. 



WHETSTONE S CO. 



911 Filbert Street, PHIUDFLPHU, PA. 



Mention The Review when yo" write. 



509^0 SAVED 



Pipes, Flues 



and casing thoroughly overhauled and gnanln- 

 teed. Greeiihnute fittings of ev^ry descriptioTi. 



ILLINOIS PIPE & MFG. CO. 



8115 8. Jetferson Street, CHICAGO 



\i"ntion I'hp Kpvifw whpr vtm wnt<» 



inch pipe with hot water in a house 

 100 feet long, unless the top of the 

 boiler is at least six feet belew the 



„_*..■-', lA-I-^*--!, J.. 



