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104 



The Florists' Review 



?»^:i<^t^"T ■ .^T™\- TT|.f'«P i^*^" - 



Mat 1, 1919. 



GreenhODse Heating 



Subscribers are invited to write the 

 Editor of this Department with regard to 

 any details of greenhouse heating that 

 are not understood. When information 

 is desired regarding the capacity of boil- 

 ers, or t&e amount of radiation required 

 for a greenhouse, the needed temperatures 

 should be stated in the inquiry, as well 

 as the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often help- 

 ful, also, to have a sketch showing the 

 location of the houses. 



A EANGE OF FOUS HOUSES. 



Will you kindly advise me about the 

 piping of a range of four houses which 

 I intend to build this season? As indi- 

 cated in the sketch which I am enclos- 

 ing, the houses all run east and west. 

 House No. 1 is at the south side of the 

 range and is 21x72. It is twelve feet 

 high to the ridge. The south wall is six 

 feet high and consists of wood, except 

 the upper thirty inches, which are 

 glass. Will eight %-inch steam pipes, 

 four on each side wall, heat this house 

 to 55 degrees when the outside tempera- 

 ture is 15 degrees below zero, or should 

 I use 1-inch pipe? The house is divided 

 irto two sections by an aisle that crosses 

 it at the center. Directly north of the 

 aisle are the boiler room and office. I 

 am planning to run a 3-inch feed pipe 

 crosswise of the house, above the aisle, 

 so I can add to the house when neces- 

 sary. 



East of the boiler room and north of 

 house No. 1 is No. 2, which is 12x50 and 

 eleven feet high to t^e ridge, with thirty 

 inches of glass in the partition. The 

 partition is six feet high and of the same 

 construction as the outside wall of house 

 No. 1. Will four %-inch pipes, two on 

 each wall, heat this house to 60 degrees? 

 House No. 3 is north of No. 2 and is 

 of the same dimensions and construc- 

 tion, except that the north wall is all 

 wood and is eight feet high. The de- 

 sired temperature also is the same — 60 

 degrees. West of the boiler room and 

 north of house No. 1 is No. 4, which is 

 14x30 and twelve feet high to the ridge, 

 with thirty inches of glass all around, 

 in the 6-foot wall. This vrill naturally 

 be the coldest ho'ise, being at th*» north- 

 west corner. It will be run at a tem- 

 perature of 55 degrees, with the piping 

 on the walls. 



My boiler is an American Ideal sec- 

 tional, marked 6-22. I am using it now 

 as a hot water boiler. C-n I change it 

 to a steam boiler and, after adding one 

 or two sections, use it to heat the whole 

 range of houses, which are all connect- 

 ed? Steam at low pressure, say ten 

 Sounds, would be used. The boiler will 

 e in a cellar, seven and one-half feet 

 deep, under the office. W. A. — Wis. 



The sketch shows that house No. 1 

 has only the south side and two end 

 walls exposed. In house No. 2 one end 

 and about twenty-five feet of the south 

 wall are exposed. House No. 4 has the 

 north side and one end wall exposed. 

 All the other walls are protected either 

 by the workroom or by the other houses, 

 except the east end of house No. 3 and 

 its north wall of boards. 



Instead of using %-inch pipes for 

 the coils, we would suggest the use of 

 1-inch pipes, and if they were more than 



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: THE KROESCHELL 



HOT WATER BOILER ° 



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Here is the boiler that is making the most wonderful greenhouse 

 heating record in the world. Florists and gardeners who have 

 used other makes are constantly giving the KROESCHELL Green- 

 house Boiler the highest praise. 



3.974,605 square feet of glass was eauipped with KROESCHELL 

 Boilers during 1916-1917. You will find the KROESCHELL in 

 every State in the Union and Canada. The supremacy of KROE- 

 SCHELL Boilers is proved by their country -wide adoption. 



Every boiler made at our works is of the highest standard. Ma- 

 terial—governed by Kroeschell specifications— the best that money 

 and brains can produce. Workmanship— the kind that is an in- 

 spiration to all boiler makers. Boiler efficiency— determined by 

 actual tests under iworking conditions. Boiler ratings— honest 

 and true blue— guaranteed actual working capacities. 



..d^pm-p 



The superiority of our boilers has resulted in the removal and 

 abolishment of hundreds of sectional cast-iron boilers. In every 

 instance KROESCHELL BOILERS give more heat with the same 

 piping and with less fuel. 



WHEN YOU BUY- GET A KROESCHELL 



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" KROESCHELL BROS. CO., '^h%/.''.*,?£ 



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