Cyclopedia of heating, plumbing and sanitation; a complete reference work . Fig. 95. Upper-Floor Radiator with Sup-ply Connected at Top. Fig 96. Radiator Connections, OverheadDistribution System. The average temperatures will be 175 and 165, respectively. Theefficiency in the first case will be 175 — 70 = 105; and 105 X 1-5 =157. In the second case, 165 — 70 = 95; and 95 X = 142;so that the radiator on the first floor will have to be larger than thaton the second floor in the ratio of 157 to 142, in order to do the samework. llfi HEATING AND VENTILATION 107 This is approximately an increas
Cyclopedia of heating, plumbing and sanitation; a complete reference work . Fig. 95. Upper-Floor Radiator with Sup-ply Connected at Top. Fig 96. Radiator Connections, OverheadDistribution System. The average temperatures will be 175 and 165, respectively. Theefficiency in the first case will be 175 — 70 = 105; and 105 X 1-5 =157. In the second case, 165 — 70 = 95; and 95 X = 142;so that the radiator on the first floor will have to be larger than thaton the second floor in the ratio of 157 to 142, in order to do the samework. llfi HEATING AND VENTILATION 107 This is approximately an increase of 10 per cent for each storydownward to offset the cooling effect; but in practice the supplydrops are made of such size that only a part of the water is by-passedthrough the radiators. For this reason an increase of 5 per centfor each story downward is probably sufficient in ordinary cases. Where the radiators dischargeinto a separate return as in the caseof Fig. 88, or those at the right inFig. 90, we may assume the tempera-ture of the water to be the same onall
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