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84 



The Weekly Florists' Review. 



April 20, 1911. 



MONTGOMERY COUNTY COAI^ CO 



GOAL OF HEHIT 



FISHBR BTJILDING, CHICA.GiO 



Mention The Review v hen vnu write 



SMITH, LINEAWEAVER& CO. 



COAL 



AnthrMlte, Bltnminons, Coke and Gas Coal 



rruYt^^&'ufi^ni.. Philadelphia 



Mention The Review when you write. 



Greenhouse Heating. 



FEWER FLOWS, MORE RETURNS. 



I have a Kroesehell No. 2 hot water 

 boiler, with sufficieut capacity to heat 

 7,500 square feet of glass. At present 

 I am heating one house, 20x100 feet, 

 with the 4-inch boiler tube system. I 

 wish to build another house, 22x100, 

 and am planning to extend the 4-inch 

 pipe straight across and use 2-inch pipe, 

 placing all the piping under the 

 benches. I would place two 2-inch 

 flows and two 2-inch returns under each 

 side bench, and one 2-inch flow and one 

 2-inch return under each of the two 

 center benches. I will grow carnations 

 and sweet peas in the new house. Please 

 inform me whether the 1,200 feet of 

 2-inch pipe would be sufficient, in this 

 Indiana climate. C. A. E. 



To heat the house 22x100 feet to a 

 carnation temperature, it will be well to 

 use three 2i4i-inch overhead mains and 

 nine 2-inch returns. The twelve lines 

 of 2-inch pipe should be able to supply 

 tho needed iadiation, but the arrange 

 ment suggested, providing for a smaller 

 number of large flow pipes and a larger 

 number of returns, would be better. 



GATE AND CHECK VALVES. 



We have trouble with our heating 

 system. We run low pressure steam 

 and sometimes in warm spells we cut 

 out certain houses. While we have two 

 sets of check valves on the returns, 

 near the boilers, and also have a check 

 on each return in the houses near 

 where they enter the main return, yet 

 the hot water comes back through them 

 all in some way and fills the whole 

 system with hot water. Indeed, some- 

 times hot water blows out of the pet 

 cocks for a while and then steam puffs 

 out, it being so hot that you could not 

 hold your hand over it. Can you tell 

 me where the trouble is? 



We are using sectional boilers now, 

 but think of putting in a regular steam 

 boiler and running high pressure steam. 

 We have about 2.5,000 square feet of 

 glass and want a surplus capacity for 

 about 1,000 feet more. What size of 

 boiler should be put in? 



J. L. O. & C. 



In the statement regarding the ar 

 rangemcnt of the piping, the valves are 

 spoken of as "check valves." While 

 it is desirable that there be a check 

 valve on the main return pipe, this 

 should not be relied upon to keep the 



The New 



*' Detroit** Return Trap 



The only successful modifications in Tilting Traps made 

 in years have been embodied in the " Detroit." Improve- 

 ments in the design and construction of "Detroit" Traps 



have been made 

 possible by an- 

 other recently al- 

 lowed patent con- 

 trolled by this 

 company. 



In writing for 

 prices, advise 

 number of square 

 feet of glass in your 

 houses, together 

 with horse -power 

 of boiler and steam 

 pressure carried. 



American Blower Company 



-— — — DETROIT. MICH . ■ 



U- S. A. 



MennoD The Review when tou write. 



iThe Standard 

 r Steam Trap 



^ l8 acknowledged t!:e best lor the 



florist, because it is durable and does 

 & its work without trouble and anno7- 



^ ance. saving its cost by the economy 



^t in coal bills. 



^ t HIPPARD CO., Youngslown, 0. 



'fion The Review when "ou write 



Harrlsburg- Franklin Coal Co. 



1216 FISHER BLD6., CHICAGO 



The Better Grades ONLT of 



INDIANA AND ILLINOIS COALS 



Preparation and Quality as tbey should be. Write to-day for Prices* 



Mention The Review when you write 



We have genuine wrought iron pipe 



and "P" quality valves 



and fittings. 



WHETSTONE ft CO. 



1911 rilbert Street, PHILADELPHIA. PA. 



Uentioii Tbe Review when you write. 



water from backing up in the coils 

 when the steam is shut off from them, 

 nor should check valves be placed upon 

 the coils and relied upon for this pur- 

 pose. When it is desired to control 



Reduce Ynnr Cm] RiII ^'^^^ one-Fourth to 



ncuutC lUUr VUU DIU One-Half and increase 

 your heat 50 to 100 per cent with our 



STEAM CIRCUUTING AND CONDENSATION PUMP 



used in connection with your 

 STEAM HEATING PLANT 



Sold under guarantee. Write for description 

 and prices. 



Chicago Pump Company, &»?c^°Mi: 



Mention The Review when you write. 



the temperature in a house, not only 

 should there be a gate valve upon the 

 flow and return pipes to each coil, but 

 from one-third to one-half of the pipes 

 in each coil should have valves at both 



