UIO 



The Weekly Flonsts^ Review* 



SEfXEUUEK 13, 1906. 



is to run the flow pipe along the side 

 nearest the boiler, then cross the houses 

 in the coils, returning in a pipe down 

 the opposite side of the ranges. In the 

 new houses can the returns be emptied 

 into a common main return, depending 

 on the trap to remove the air from all, 

 or do we need separate vents f If the 

 latter, how should the piping be done? 

 The south pipes in our present houses do 

 not heat properly in the coldest weather. 



D. F. Co. 



It is unfortunate that your flow and 

 return pipes can not be made to change 

 places. In general, it is better to carry 

 live steam to the most distant point in 

 the plant before beginning the distribu- 

 tion. When this is done the water of 

 condensation constantly moves toward 

 the boiler, which brings it back by the 

 shortest route and at a higher tempera- 

 ture, which is a decided advantage. 



In regard to heating the new houses, 

 [ think it will prove most satisfactory 

 if independent return pipes are installed 

 to return the condensation from these 

 houses direct to the hot well. This 

 should be near the boiler, and low 

 enough so that all condensation will re- 

 turn to it rapidly. If this is a tight 

 well, say a piece of 8-inch pipe two and 

 ;i half to three feet long, capped at 

 one end and bushed at the other to ad- 

 mit returns and exhaust pipe from the 

 trap, there should be no uifSculty. 



Each system, however, will require air 

 vents, in fact every coU of pipe should 

 be vented so as to be certain at all times 

 that the circulation is complete. With- 

 out plenty of vents great care is neces- 

 sary in grading the pipes, to prevent 

 buckles and traps, which would impede 

 the flow. With plenty of air vents such 

 defects are overcome. It is desirable to 

 have check valves on the returns be- 

 tween the hot well and the system, but 

 not absolutely necessary to insure the 

 sDCcessful operation of the trap. 



L. C. C. 



PIPING FOR SMALL HOUSE. 



I wish to heat a house 15x50 to 50 

 degrees in zero weather. It is six feet 

 to the eaves and twelve feet to the ridge. 

 It is fifteen feet from the boiler, and 

 has boarded walls with two feet of glass. 

 How many runs of 2-inch pipe do I need, 

 and how large a flow from the boiler f 

 How much difference is there in the 

 heating surface of 4-inch and 2-inch 

 pipef C. E. A. 



The house 15x50 feet can be heated 

 by the use of ten lines of 2-inch pipe. If 

 it is convenient to make two of these 

 flow pipes and eight of them returns, 

 two manifolds can be made to do the 

 work. They can, however, be arranged 

 to suit the bench arrangement of the 

 house. 



Each foot of 2-inch pipe has 621 thou- 

 sandths of a square foot of heating sur- 

 face, while each foot of 4-inch pipe has 

 1.178 thousandths square feet of heating 

 surface. L. C. C. 



HEATING ONE HOUSE. 



How many runs of 1-inch pipe with 

 pressure at from two to five pounds will 

 it require to heat a house 21x60 feet, 7- 

 foot walls and two glass gables, to 60 

 degrees in zero weather? 



What is the practical relation between 

 a cubic foot of space and a square foot 

 of beating surface, or in other words, 

 will one square foot of radiation heat 

 OTIC cubic foot of space, conditions being 



Memlou 'i'Ue Itgvlew wheu yuu wrllg. 



THREE 



SUPERIOR 



BOILERS 



New, steel, each built to heat 11,000 

 feet of 4-inch pipe. 



READY FOR SHIPMENT 



SUPERIOR MACHINE 

 A BOILER WORKS 



J27- J33 West Superior St. 

 CHICAGO, ILL. 



Mention The Kevlew when yon write. 



■XORKNCK HKATKRS 



ODT8IDK AMD XN8ZDX 



r«t*t 



BOKO 



•iahX 



Robber Roofing 



The original flint coated. 

 Write fur catalog and samples. 



SALL MOUNTAIN ASBESTOS 

 MFG. GO. nt.cmi»..eiicMt 



as used in good construction? How much 

 heating surface is a lineal foot of 1-incb 

 pipef How do you figure to get the 

 cubic feet in the gable part of a green- 

 housef G. L. P. 



The house 21x60 should be provided 

 with a 2-inch flow pipe under the ridge 

 and nineteen 1-inch returns, arranged 

 under the benches or along the side 

 walls, as seems most desirable. One 

 lineal foot of 1-inch pipe contains 344 

 thousandths of a square foot of heating 

 surface. Greenhouse heating is not cal- 

 culated on the basis of cubic contents, 

 as is house heating, but upon surface ex- 

 posure. L. C. C. 



ADDITIONAL RADIATION. 



I have a house 16x80 feet, 10-foot 

 ridge, and the north wall is banked to 



C0IUMBI4 HEATING CO . Belvld«-re, III. 



High-Grade Boilers 



gaSSJu. For GREENHOUSES 



STEAM and HOT WATER 



6IBLIN&C0.,Utica.N.Y. 



\l»Miil«»n The Kerlew when yoo write. 



the gutter. My heating system has a 

 boiler rated for twice the glass I have, 

 but I have not enough radiation. I have 

 one 2-inch flow and three 1%-inch re- 

 turns on each side. The expansion tank 

 is two feet above the highest point in 



