. Florists' review [microform]. Floriculture. RIPPLEY HEATERS Will heat 800 ft. piping. Heat regulated antomatically. $ for this complete No. 200 Heater, recommended by Florists, etc. Catalogue free. RIPPLEY MFG. CO. Box 10, GRAFTON, ILL. Mention The Review when you write. Simonds Heating & Specialty Co. Grand Rapids, Mich. QRBENHOUSE ONE POUND PRESSURE VACUUM HBATINQ SYSTEMS Mention The RcTlew when yooi write. Greenhouse Heating. Subscribers are invited to write the editor of the Heating Department, de- scribing their troubles or asking any questions regarding the heating of green- h
. Florists' review [microform]. Floriculture. RIPPLEY HEATERS Will heat 800 ft. piping. Heat regulated antomatically. $ for this complete No. 200 Heater, recommended by Florists, etc. Catalogue free. RIPPLEY MFG. CO. Box 10, GRAFTON, ILL. Mention The Review when you write. Simonds Heating & Specialty Co. Grand Rapids, Mich. QRBENHOUSE ONE POUND PRESSURE VACUUM HBATINQ SYSTEMS Mention The RcTlew when yooi write. Greenhouse Heating. Subscribers are invited to write the editor of the Heating Department, de- scribing their troubles or asking any questions regarding the heating of green- houses, the piping or boiler-room. But please do not ask us to make a choice of apparatus for you. Each boiler adver- tised in The Review is a good boiler, and the advertisers sell them on their merits. SIZE OF BOILER. Kindly let me know what would be the necessary horse-power of a tubular steam boiler to heat 25,000 square feet of glass here, in central Illinois. E. R. The size of the boiler will vary with the temperature desired. While one rated at fifty horse-power would answer when 45 to 50 degrees is needed, it will be advisable to have at least sixty horse-power if a temperature of 60 de- grees is to be maintained, and the ca- pacity of the boiler should be propor- tionately increased for higher tempera- tures. ' AMOUNT OF RADIATION. Will you kindly let me know the number of square feet of radiation re- quired for a plant house having ap- proximately 5,000 square feet of glass? The house measures 40x60 and the ridge is about twenty-five feet above the floor. Steam heat will be used, under about five pounds of pressure. The pip- ing will consist of wrought-iron pipe coils, made of IVt-inch pipe, with the coils one pipe high. A temperature of 70 degrees inside is desired, and this should be maintained when the outside U -rX*'. will add to the ef- ficiency of Your Heating System and Reduce Your Coal Bills. To keep steam coils drained of condensation leaves full area of pipes
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