. The American florist : a weekly journal for the trade. Floriculture; Florists. A. Boiler, B, B. Flow pipe, C. C. Return pipe, D. Vent pipe, E. Expansion tank. F. Supply pipe attached to return pipe. C. c;reenhonse. J. Ash pit, K. smokestack. trespass on the columns of this paper to explain the plan of securing good circu- lation, when from any cause it is neces- sary to set the boiler above the ground line. The annexed diagram will show the system to be employed much better than words can explain. We can refer to many florists who will testify to perfect success in heating their houses by th


. The American florist : a weekly journal for the trade. Floriculture; Florists. A. Boiler, B, B. Flow pipe, C. C. Return pipe, D. Vent pipe, E. Expansion tank. F. Supply pipe attached to return pipe. C. c;reenhonse. J. Ash pit, K. smokestack. trespass on the columns of this paper to explain the plan of securing good circu- lation, when from any cause it is neces- sary to set the boiler above the ground line. The annexed diagram will show the system to be employed much better than words can explain. We can refer to many florists who will testify to perfect success in heating their houses by this arrange- ment of pipes and boiler. After the pipes enter the greenhouse the same plan of laying them may be adopted as if the boiler was below the ground line. If the radiating pipes have a rising incline through the length of the line a vent pipe must be inserted at the highest point reached, but if the pipes have a gradual fall through flow and returns back to the boiler, no vent, stand pipe or expansion tank will be needed, save those shown near the boiler. J. D. C.\rmodv. A Conv Sliding Ventilator. The sliding ventilator has an advan- tage over one which is lifted from the fact that it is not so liable to catch the wind; lifting a ventilator from the up- per instead of the lower end obviates this defect of lifting ventilators to a con- siderable extent, but not entirely. Tslr. A. T. Jackson, of Bowmanville, near Chicago, after trying various styles of ventilating, has adopted the sliding ven- tilator, of which a sketch is shown on this page, as the best suited to the pur- pose. The drawing plainly shows the principle upon which it works. The great difficulty with a sliding ventilator has usually been from their sticking in the frame by the swelling of the wooden sash when wet; this, Mr. Jackson has overcome, by beveling the edge of both sash and frame to correspond, so that when the sash swells it may lift the sash a trifle, but still make a tight joint and can always be


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea