Decembee 31, 1903. 



The Weekly Florists' Review* 



269 



fign 



O 



Section of 

 Turnacc 



Plan for Furnace and Flue wilh Hot Water Coil in Fire Box. 



FURNACE AND FLUE. 



I Tvaut to heat a greenhouse ISxoO feet, 

 even span, runuing- east and west, no 

 glass in ends or sides. The side walls are 

 four feet high and the roof is at an angle 

 of about 3.5 degrees. A night tempera- 

 ture of 50 degrees is necessary when it is 

 10 degrees below zero outdoors. I want 

 to use a tlue and would like full dircc-- 

 tious for building both furnace and flue. 



I also want to heat an adjoining 

 greenhouse 10x20 feet, glass in one end. 

 roof at an angle of 35 degrees, even 

 span, side walls four feet high. Here a 

 night temperature of 60 degrees is need- 

 ed. I want to use hot water to heat this 

 small house. How can I arrange pipes 

 in the furnace in the larger house to heat 

 the small one? Also how many and what 

 size pipes will it take to heat the house ? 



E. W. H. 



While the flue is not to be recommendeil 

 where other plans of heating can be af- 

 forded, the house in question can be 

 heated by a flue and furnace constructed 

 as shown in the sketches. Fig. I and II. 

 Locate the furnace at the wes^t end of 

 the house. Dig a pit about four feet 

 wide and two feet deep extending 

 at least five feet inside the gi-een- 

 house and any convenient distance on the 

 outside. Construct a drain of tile on 

 boards to carry off any surface water 

 which miglit get into the pit. In Fig. I 

 a plan of the furnace and flue is given. 

 The furnace extends about nine inches 

 outside the greenhouse wall; has walls 

 fhiitecn ii'chcs thick, nine inches com- 

 mon arch brick lined with Are brick. For 

 this building the furn&ce should bo three 

 feet long by one foot eight inches wide ;n 

 the clear on the inside, which gives the 

 furnace five square feet of grate surface. 

 An ash pit eighteen inches deep, count- 

 ing from the top of the grate bars, 

 should be provided. The fire box should 

 •ilso be at least twelve inches in height 

 from grate surface to position of the IVt 

 inch pipes shown in Fig. II, which should 

 be connected at the front of the furnace 

 with return bends and at the rear with 

 cast-iron manifolds. One pipe of each 

 of the five pair should be carried into a 

 manifold to receive the return water and 

 one from each pair carried a little far- 

 ther back into .a manifold to receive the 

 flow pipe wliich is tc heat the 10x20 



house. The flow had best be 2-inch pipe. 

 At the end of the manifold "T" on the 

 returns marked "exp." in Fig. II a 

 ^'4-inch reducer should be placed in the 

 tnd of the manifold and into tliis screw a 

 street "L" which should carry a -j,- 

 iueh pipe leading to the peak of the 

 greenhouse and into the bottom of an 

 expansion tank which should hold ten or 

 fifteen gallons. A second-hand steel wa- 

 ter tank is ideal for this purpose. The 

 2-inch riser or flow pipe cau be carried 

 from the heater directly under the 

 benches in the 10x20 house and thereby 

 i\ manifold be broken up into four 11^- 

 inch pipes running around the house and 

 again uniting in a manifold at the op- 

 posite side of the house. The cooled 

 water would be returned by a 114-inch 

 pipe to the manifold at the rear of the 

 furnace marked (ret) in Fig. II. The 

 heating surface in the furnace will be 

 made up of ten 11/4 -inch pipes running 

 from end to end of the furnace as shown 

 in Fig. II. 



The flue should run entirely around 

 the house and discharge into a chimney 

 built on top of or by the side of the 

 furnace. The throat "of the flue should 

 be four inches wide and about ten inches 

 deep at the end near the furnace and will 

 be most convenient if taken off at the 

 side of the furnace, as shown in Fig. I. 

 For the first thirty feet the flue should 

 be made of brick four inches and lined 

 with fire brick set on edge, thus making 

 a 6-ineh side wall, which should be 

 capped with a layer of fire brick and 

 jacketed with common brick. From 

 thirty feet on, the flue may be made of 

 ordinary 8-inch terra cotta pipe, using 

 elbows at the corners and packing the 

 .joints thoroughly with the best cement. 

 The earth or supjiorts for the flue should 

 make a uniform grade around the house 

 and have a rise of at least two feet in 

 the distance, which will be' about 110 

 feet. A "T" joint of terra cotta pipe 

 can be placed on top of the furnace at 

 the proper height to receive the end of 

 the flue, and by extending the perpendic- 

 ular portion of the terra cotta pipe the 

 chimney can be made. L. C. C. 



Hartford, Coxx. — Christmas trade was 

 very heavy and tlie weather is very cold, 

 below zero, which does not give the green- 

 house men much chance to rest up. 



THRIPS ON FICUS. 



We have in our collection a large rub- 

 ber tree six feet high which I think is 

 diseased, as enclosed leaf shows. Kindly 

 give me advice as soon as possible in the 

 Bevtew. b_ X. 



The leaf in question does not appear 

 to be diseased, but has been injured by 

 a bad attack of thrips, there being abun- 

 dant evidence of the work of these trou- 

 blesome insects. Unless there are some 

 tender plants in the same greenhouse 

 that may be injured by strong tobacco 

 smoke, I would suggest, as the easiest 

 method to get rid of the thrips, a strong 

 fumigation with tobacco dust, or Aphis 

 Punk on two or three evenings in succes- 

 sion. 



If not convenient to do this, the plant 

 could be carried out into the potting 

 shed, then laid upon its side on the bench 

 or floor, and given a thorough syringing 

 with strong tobacco water or solution of 

 tobacco soap, turning the plant around in 

 order to reach all the foliage with the 

 insecticide. From the fact that it is not 

 easy to reach all the insects with one ap- 

 plication, it may be found necessary to 

 repeat the dose. W. H. Taplin. 



A VISIT TO SYRACUSE. 



That wonderful carnatidn, Flamingo 

 needs no praise from me, but never hav- 

 ing seen it growing I was glad to step 

 off a fast train and take a trolley to 

 Delaware street, Syracuse. Wliile waiting 

 for the ear who should be waiting on 

 the opposite corner but C. W. Ward- 

 very strange but all the more pleasant'. 

 We found ilr. ilarquisee and several 

 assistants very busy with designs, etc. 

 Yet I know he was glad to see us and 

 soon we had viewed several houses of 

 Flamingo, one house allowed to flower 

 the others stopped back for propagating! 

 To me the house that was devoted to 

 flowers was a most beautiful sight. Most 

 of you carnation specialists have seen 

 the blooms of Flamingo, but only a few 

 have seen it on the benches. The writer 

 always carries a two-foot rule in his re- 

 volver pocket and a number of the stems 

 were measured. They would average 

 from soil to flower three feet. This 

 would give you a 30-inch stem without 

 crippling the plant. Surelv that is stem 



