Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . 118 GREENHOUSE CONSTRUCTION. of combustiou repeatedly in contact with the lieatingsurface, and if this is not sufficient to absorb all of theheat, the difficulty can be corrected by the addition ofmore sections. The first, third, and fifth sections areshown in Fig. G9, and the second and fourth in Fig water is spread out in a thin sheet in the sectionsand cannot enter the feed pipes until it has made a com-plete circui
Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . 118 GREENHOUSE CONSTRUCTION. of combustiou repeatedly in contact with the lieatingsurface, and if this is not sufficient to absorb all of theheat, the difficulty can be corrected by the addition ofmore sections. The first, third, and fifth sections areshown in Fig. G9, and the second and fourth in Fig water is spread out in a thin sheet in the sectionsand cannot enter the feed pipes until it has made a com-plete circuit of one section. By tlie arrangement of thewater column in the rear, the water having passed throughone section, is prevented from entering another. Thepoints claimed for this heater are, economy of fuel, per-fect and rapid circulation, readiness of cleaning, few andtight joints, and, in case of leakage or breaks, the readi-.
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Keywords: ., bookcentury1800, bookdecade1890, bookidgreenhouseco, bookyear1894
