. Florists' review [microform]. Floriculture. A Steady Pressire will alwayi be main- tained in Jonr steam pipes, no matter ow the preainre at the boiler flnctnates, if yon equip vonr main lines with these vuvss. Oarry 40 or 60 poonds pressure on the boiler, set the Hughsoo Regulating Valve to carry 5 or 10 pounds on the line and yon will always have a reserve in case of a sudden drop in temperature. This valve saves both fuel and worry. Ask for catalogue and particulars. Hifhni Steu Spedaltf Ci. ,Cliciff MtntkiB TTie B*t1>w when yoa write. easy, especially under greenhouse con-


. Florists' review [microform]. Floriculture. A Steady Pressire will alwayi be main- tained in Jonr steam pipes, no matter ow the preainre at the boiler flnctnates, if yon equip vonr main lines with these vuvss. Oarry 40 or 60 poonds pressure on the boiler, set the Hughsoo Regulating Valve to carry 5 or 10 pounds on the line and yon will always have a reserve in case of a sudden drop in temperature. This valve saves both fuel and worry. Ask for catalogue and particulars. Hifhni Steu Spedaltf Ci. ,Cliciff MtntkiB TTie B*t1>w when yoa write. easy, especially under greenhouse con- ditions. In the first place, the gases are reduced in temperature by coming in contact with the comparatively cold boiler plates; again, the furnace tem- perature is lowered every time fresh coal is thrown on the fire. *#»». RETURN TRAPS Save condensation and it's heat. Automatically return both to boiler with out pumping. Let us show you what "Detroit" Traps would save in your coal bills—what they will do for your Heating System. Catalogue No. 352-FW upon request. American Blower Gompany '?" DETROIT. MICH. ————. U. S. A. Canadian Sirocco Company, Limited, Windsor. Ontario, Manufacturers for Canada. Mention The RcTlew when yon write. Possibly the best attempt at smoke- less hand firing is the coking system; that is, firing green coal only on the dead plate and the front part of the grate and gradually pushing it to the back after all the hydrocarbon gases have been driven off and it has become an incandescent mass. This method of firing is impossible unless the boiler is worked at a low rate, but can be employed in greenhouse boilers of suf- ficient size, as the coking process, dur- ing which the hydrocarbons are given off, is comparatively slow and the ef-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly res


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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912