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122 



The Florists^ Review 



Sb^embob 23, 1920 



Greenhouse 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 the 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. 



CHANGING BOILER. 



Would you advise us to plan a change 

 of our heating system from hot water 

 to steam t 



For ten years we have used hot water 

 for heating and it has been satisfactory. 

 The range has been gradually added to 

 until the present. The heating equip- 

 ment is shoAvn in green on the sketch. 

 This consists of a 4i/^-inch headline 

 flow and return, with nine 2-inch flows 

 going to the far end of the houses, 

 where each drops into three returns, 

 sometimes four, which again flow into 

 4%-inch main returns and thence back 

 to the boiler. 



The old boiler is a 20-horsepower, 

 return tubular boiler, on which the 

 openings liave been enlarged, making 

 it into a hot water boiler. This boiler 

 would be worthless for steam, but could 

 be used a few more years for hot 

 water. Last year, in order to get more 

 heating capacity, we bought an addi- 

 tional boiler of seventy-five horse- 

 power, the Atlas steam boiler, on 

 which the state inspector will pass 

 us for eighty pounds. We connected it 

 in the battery with the smaller boiler, 

 so as to have more heating capacity. 

 If we are to continue using it for hot 

 water we must enlarge the openings. We 

 have hesitated about changing it until 

 we could be sure that we ought not to 

 consider a change from hot water to 

 steam. 



Both boilers are located together in 

 the cellar, so that the water level would 

 be below the lowest returns in case 

 steam were used. Therefore we sup- 

 pose the system should work equally 

 well for either Jiot water or steam. 

 Would we have to remodel all our pres- 

 ent heating pipes in case of a change, 

 or would the 2-inch flow pipes with 

 their 3-inch returns under each bench 

 work all right for steam just as they 

 are? They are valved on the 2-inch 

 flow pipes only, with gate valves. 



As we understand it, the hot water 

 plant should require less night atten- 

 tion, but the steam would give us better 

 forcing facilities for special crops; 

 steam would require a night man' 

 whereas we now get along fairly well 

 without one; the new radiation required 

 for the new houses will cost us more 

 for hot water than it would for steam, 

 but what we are desirous of knowing 

 definitely is, would there be enough 

 saving now and later to justify a 

 change f 



On the drawing the black lines indi- 

 cate the present building outlines; the 

 green lines indicate the present heating 

 pipes; the red lines indicate the heat- 

 ing pipes that must be installed this 

 summer and the yellow lines show that 

 we are contemplating doubling the whole 

 plant in the far future. The picture 



"Ain't it a Grand and Glorious Feeling?" 



Heat Your Houses with 

 Kroeschell Boilers 



YOU'LL BE HAPPIER 

 YOU'LL BE RICHER 



TO THE MAN WHO NEEDS A BOILER 



"The customer's interest first"-is the basis of the KROESCHELL standard. This 

 principle makes the KROESCHELL Policy the most liberal of all in the Green- 

 house Boiler business. The great variety of boilers that we make places us in a 

 commanding position. It is the KROESCHELL principle to supply only the type 

 of boiler best suited for the conditions. For this reason we always furnish the 

 most efficient boiler unit in every case. 



CAN SHIP 

 ANY SIZE 

 AT ONCE 



NOT 



CAST 



IRON 



NOT 

 CAST 

 IRON 



TELEGRAPH 



ORDERS AT 



OUR EXPENSE 



The KROESCHELL has proven its worth in many of the large establishments in 

 this country. It has frequently been selected by the most careful buyers in 

 competition with all other types of boilers. Its efficiency and capacity are com- 

 pletely beyond any other boiler. 



KROESCHELL BOILERS have no bulky, soot accumu- 

 lating surfaces— you avoid the disagreeable work and 

 trouble indispensable to cleaning boilers with compli- 

 cated and tortuous back and forth passages. 



The superiority of our boilers has resulted in the removal and abolishment of 

 hundredsof cast iron sectional boilers— in every instance KROESCHELL BOILERS 

 give more heat with the same piping with less fuel. 



WHEN YOU BUY - GET A KROESCHELL 



KROESCHELL BROS. CO., 



444 W. Erie Street 

 CHICAGO, ILL. 



