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October 10, 1912. 



T^ Hoists' I&view 



Do YoiL Dread Cold Weather? 



ERE IS NO NEED TO 



florist with 3000 square feet of glass or less, 

 who d||^ his own firing, will be able to go to bed 

 and stay there if he has one of our famous 



WILKS SELr-FEEDING BOILERS. 



No need of getting out of bed during the night. Just 

 fill the magazine and forget to worry about your fire. 

 It takes care of itself and maintains the even, contin- 

 uous fire that is necessary to flower culture. ' 



Wilks Self-feeding Hot Water Boilere 



are made of the best quality of steel, strongly riveted 

 and calked, with no cast-iron sections to crack. Our 

 Catalogue is yours for the asking. It tells 

 all about our heaters, shows their economy and gives 

 a plan for heating a model greenhouse. 



NEW CATALOGUE READY. WRITE FOR ONE. 



S. WILKS NFG. CO., 3523 Shields Ave., CHICAGO, ill 



Ueotlon Tbe Review when you write. 



We want to send jou the namea of the 

 nearest florists who are asing^ the Martin 



ROCKINQ GRATE 



We refer to Peter Beinberg, Emil Baettner, Baisett 

 & WaBhbnrn, Wietor Bros., Adam Zender, Sinner 

 Bros., Albert Dickinson Seed Co., and many others. 



See it workingr and you will order the Martin Rocking Orate for 

 the new boilers to be put in this season. Write for catalogue <£>* 

 prices. 



IT SAVES COAIi 



Martin Grate Co. 



343 S. Dearborn St., CHICAGO. 



SenA order «o»r— we wiO make up the crates and bold untH 



you say ship 



Mention 'Itie KeTiew when you write. 



to use three, two and one 2l^-inch 

 pipes in the respective houses, as flows, 

 and ten, seven and two 2-inch returns, 

 respectively. The present plant will 

 require a boiler with a rating of 2,500 

 square feet, and due allowance should 

 be made for any prospective increase 

 in the size of the plant. 



RETUIUre HAVE WEONO SLOPE. 



I am considering the renting of an 

 idle house, which I would want to heat. 

 The house runs north and south. It 

 is 28x150 feet and twelve feet high 

 to the ridge. The west wall is three 

 feet high, with glass ventilators. The 



east wall is of brick and is three feet 

 high. The gables are glass, above a 

 3-foot tile wall. I want a tempera- 

 ture of 50 degrees. The outside tem- 

 perature in this part of Pennsylvania 

 seldom drops lower than 12 or 14 de- 

 grees below zero. 



In the house at present there are 

 two 2-inch lines near the ridge. On 

 each side, along the walls, there are 

 four 1%-inch lines. These all fall 

 about one foot toward the north end 

 of the house. Now, I want to place a 

 ten horse-power, flue boiler at the south 

 end of the house, about twenty feet 

 from the end of the house, and it 

 would be fully six to eight feet lower 



than the floor level of the greenhouse 

 at the south end. The greenhouse 

 floor also has a fall of about one foot 

 toward the north end. 



What must I do to get results from 

 the boiler? How much more piping 

 will be required in the house? Would 

 it be practical to connect with the 

 boiler by means of a 3-inch pipe and 

 bring this, as a riser, up to the level 

 of the two 2-inch pipes near the ridge, 

 and would these two 2-inch pipes suf- 

 fice to feed all returns from the north 

 end? There are two purlins and I 

 could run one more line on each of 

 these. If necessary, I could make these 

 feed lines also, by connecting at the 



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