150 



The Rorists^ Review 



Aphil 28, 1921 



Connect each supply pipe with a coil of 

 six 2-inch returns running each way 

 from the end door to the corners of the 

 house and thence along the side walls. 

 In case bottom heat is desired for any 

 of the middle benches, it can be pro- 

 vided by using only four lines in each 

 of the side coils and arranging two 

 coils to contain three pipes each to run 

 under the benches, or in the walks if 

 solid beds are used. 



A 3-inch flow pipe should be used to 

 supply the dwelling. The expansion 

 tank should, if possible, be located well 

 above the radiation. Pipes should be 

 run from the highest i^art of each flow 

 pipe to the pipe leading to the expan- 

 sion tank. 



ARRANGING THE COILS. 



I have erected a greenhouse, 13x32 

 feet, with 4-foot walls of glass. It is 

 ten feet high at the ridge and has glass 

 in only one end, since the east end abuts 

 against the boiler house. The green- 

 house extends east and west and is pro- 

 tected from strong winds. It is built 

 of second-hand material and is fairly 

 tight, but the temperature here some- 

 times drops to 20 degrees below zero 

 for short periods. 



I have an upright tubular boiler, two 

 feet in diameter and six feet high, 

 which I wish to use. Since the top of 

 the boiler will be about two feet higher 

 than the bods, whore shall I place the 

 flows and returns, and how many will 

 be needed? What sizes would be best? 



C. M.— Pa. 



No mention is made of the tempera- 

 ture desired in the house, but we judge 

 that it will be ample if 60 degrees can 

 be maintained. 



Wo suggest the use of three 2-incli 

 flow pipes, placing one on each side 

 wall jilate and the other on the north 

 row of purlin posts. At the farther 

 end of the house, connect the flow pipes 

 with the return coils. For these we 

 should use l^A-inch pipes, with three 

 lines on 'each of the two rows of purlin 

 posts and four lines on each of the side 

 walls. The coils on the purlin posts 

 should be four or five feet above the 

 tops of the beds, while those on the 

 walls should be well up toward the 

 plates. All pipes should have a slight 

 fall, but this need not be more than 

 one inch in ten feet. This arrangement 

 of the coils is for the ])urpose of bring- 

 ing them above the top of the boiler, 

 and will serve the same^ purpose as the 

 lowering of the boiler. 



We cannot give an accurate estimate 

 of the capacity of the boiler described 

 above, but if it is fairly efficient, a 

 boiler with a grate two feet in diameter 

 should supply 800 scpiare foot of radia- 

 tion, while less than 300 square feet 

 will be needed for the house described. 

 If the grate is only eighteen inches in 

 (uamotor, the Ijoiler is none too large 

 for this liouse. 



FROM STEAM TO WATER. 



I have a greenhouse, 4.')x]2.1, with 7- 

 foot side walls, three feet of concrete 

 and four feet of glass. It is twenty 

 feet to the ridge, which runs east and 

 west, and the house has a 10-foot lean-to 

 on the north side. It is now heated 

 with steam. I should like to change to 

 hot water. There is a 3 inch flow down 

 through the center of the house about 

 seven feet below the ridge. There are 

 fourteen I'/j-inch returns placed in the 



Easily molded to fit any place 



How Are Your Furnaces 



Lined? 



If your side walls, front-door arches, baffles, combus- 

 tion-chamber arches, and bridge walls are made of 



LINING 



you know what real SERVICE means. A 

 complete PLIBRICO setting is your insur- 

 ance against fuel waste and your gu&ranty 

 that your furnaces are always tight and 

 your settings whole. 



PLIBRICO is quickly and easily installed. 

 Xc forms are needed. It is pounded into 

 shape with a mallet and smoothed with a 

 trowel. Any man can install f LIBRICO. 



There are no joints in PLIBRICO where dis- 



integration can start, no cracks to hold 

 clinkers, no chance for heat to escape. 



The furnaces equipped with PLIBRICO 

 now will be ready when steam demand is 

 highest in the autumn and winter. 



Sold only in steel containers of dit- 

 tinctive appearance as shown below 

 (and above). Warehouse stocks ready in 

 all principal cities. 



Send for Booklet D20 on Furnace Building. 



PIPE- 



Wrought Iron of sound second-hand quality 

 with new threads and c upling, 16-ft. lengths 

 and up. Also pipe cut to sketch. We guarantee 

 entire satisfaction or return money. 



ALSO NEW PIPE AND FITTINGS 



Pfaff & Kendall, r^^j^t. Newark, N. J. 

 Pipe— Second - Hand 



ALL SIZES FITTINGS 

 AND BOILER TUBES. 



Pipe cut 

 to sketch. 



We guarantee entire satisfac- 

 tion or money refunded. 



Philadelphia Second-Hand Pipe Supply Co. 



1003 N . Tth Street, PHILADELPHIA, PA. 



wjilks .and four IVt-inch returns in the 

 lean to. The boiler is a Funiian sectional, 



#= 



3IE 



% 



BOILER FLUES 



We make a specialty of handling 

 carefully selected Boiler Floes. 4 

 Inches In diameter and other sizes 

 for Ketabiiicr Boilers. Also 

 Flues for greenhouse piping, etc. 



All flues are thorouKhly cleaned 

 inside and out, trlnimed and are 

 readyforuse. General saleHaRent 

 for Stuttle's Patent Clamp and El- 

 i>ow for Joining flues— no packing, 

 no leaks. New Standard Pipe and 

 all kinds of Greenhouse Fittings. 

 Right prices and prompt shipment. 

 H. MUNSON 



Est. 1898 Phone Superior 672 

 1483 M. Wells St., Ghloaso 



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inff I 



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Mention The ReTiew when you write. 



with a grate surface 30x48 inches. The 

 top of the boiler is about one foot below 



