86 



The Weekly I^nists^ Review. 



Deckhbbb 21, 1911. 



glass in the side. The other house is 

 17 X 72 and eight and one-half feet to 

 the ridge. The sides are three and one- 

 half feet high and are boarded. There 

 is glass in one end. While this may 

 seem an unreasonable question to ask, 

 yet I believe it is one that concerns 

 every florist. Perhaps a symposium on 

 the subject would be helpful. 



A. B. E. 



A good deal depends on the severity 

 of the weather during a given winter, 

 as well -as on the construction and ex- 

 posure of the houses, the perfection 

 of the heating apparatus and the skill 

 and attention of the fireman. However, 

 to heat two houses, 17 x 108 and 17 x 72, 

 to 55 degrees, under the conditions men- 

 tioned and with other circumstances 

 about average in character, will re- 

 quire from twenty to twenty-five tons 

 of hard coal for the five winter months. 



BOILER AND PIPING. 



I see a great variety of questions 

 asked and answered in the columns of 

 The Eeview and I am taking the lib- 

 erty of asking one or two on my own 

 account. 



I am building a greenhouse, 22 x 86 

 and nine feet to the ridge. I have an 

 Ideal heater, for either steam or hot 

 water, with 2,000 feet capacity for hot 

 water, or perhaps a little more. It has 

 seven sections. How do you figure 

 the heating capacity of boilers? I am 

 placing the boiler four feet below the 

 floor of the greenhouse. I have Sy^- 

 inch mains and li/4-inch returns. How 

 many returns are needed and how 

 should they be placed to give the most 

 efficient service for general greenhouse 

 purposes? I wish to grow carnations, 

 geraniums and roses and I want my 

 present plant to suffice until the de- 

 mand requires a larger one. I am put- 

 ting the house two feet below the level 

 of the ground and am building a 4-foot 

 concrete wall, with two feet of glass 

 under the eaves. The house runs north 

 and south, with ventilators on the east 

 side. The heating plant is at the north 

 end. The house is not at present pro- 

 tected on the west. My location is 

 western Illinois. R. C. C. 



The capacity of a boiler should be, 

 to a considerable extent, proportionate 

 to the size of _ its grate, although this 

 would vary with the amount of grate 

 surface. In practice, however, it is 

 found that when a boiler has horizontal 

 sections the grate may be smaller than 

 when the sections are vertical. The 

 form of the sections and the thickness 

 of the water columns must also be con- 

 sidered. Some manufacturers rate 

 their boilers at 200 feet of hot water 

 radiation for one square foot of grate, 

 while others count on less than 100 

 square feet. The Ideal heater runs 

 about 200 square feet of hot water 

 radiation and 100 square feet of steam 

 for each square foot of grate surface. 



For the house described, the heater 

 should have a rating for 1,200 square 

 feet of water radiation. If open tank 

 hot water radiation is to be used, three 

 2%-inch flow pipes and fourteen 2-inch 

 returns will be desirable, but either 

 with combination steam or using a 

 generator for hot water, three 2^^- 

 inch flow pipes and sixteen 1^-inch re- 

 turns will give about the same tempera- 

 ture, though with a little more expendi- 

 ture for fuel. 



An Innovation In Steam Trap Design 



and Construction 



THE NEW 



u 



RETURN TRAPS 



in defiid •! ill uieceMiy 



■echuisB. 



Every pirt desUsed, mmfictvtd 



ud isMBbled witii tke idn if 



penuieice firemnt 



Every tilt if tke trip sktwi that 



it's wiridit— dniiiif every dtap 



ef ceideiMtiei trea tke keiti^ 



lyitem ud iitenuticilly retiniig 



it te tke btiler— m iimpi — m 



tiMUe. 



Return it directly to the boiler 



Condensation is the purest kind of boiler feed water. Don't waste it< 

 by "Detroit" Return Traps and prevent scale formation. 



Ask us to mail you advance bulletin, No. saO-FR. 



American Blower Gompany 



DETROIT. MICH . 



U. S. A. 



Mention The Review when you write. 



The Travis 



PATENTKD 



UNIVERSAL 



ROCKKR 



Grate 



The only mash finger Gra*e that can be opened 

 wid-4 and not become oloBsed. 



With cinders on them 12 inches deep and with 

 3 inches of Are on top, we guarantee that you 

 can grind out the bottom and settle the fire down 

 to the grates practically unmoleiited. 



Write us for prices and literature. 



G. E. Travis Co. 



HKNRT. ILL., U. 8. A. 



Mention The Review when you write. 



200rc 



'O 



Our sales to Florists for 1910 were 200>i in- 

 crease over 1909 and every customer satiifled. 



RETURN TRAP 



/7^'fr- 



A4iiiftment 



Cleu out Plar 



Steam Inla 



Taylor Steam Specialty Co. 



BAHLE CREEK, MICH. 



Write Department F, for new catalogue. 



Mention The Review when you write. 



HIGH-GRADE BOHfRS 



ei^^Ji'ue ror GREENHOUSES 



STEAM and HOT WATER 



GiBUN ft CO., ""vSsatsrr^ 



Mention The Review when you write. 



MPROVED RETURN TUBULAR 

 FIREBOX BOILER 



Johnston Heating Co. 



131 B. 26th St., Svw Yc»rk City 



Mention The Review when you write. 



50<fo SAVED 



Pipes, Flues 



and casing thoroughly overhauled and guaran- 

 teed. Greenhouse flttingrs of every descri^on. 



ILLINOIS PIPE & MFG. CO. 

 tll5 8. Jatlerson Street, CHICAGO 



