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# Hot Water Storage Tanks - Capacities vs. Dimensions

Hot-water storage tank dimensions and capacities:

Hot Water Storage Tanks - Capacities vs. Dimensions of Tanks
Tank Diameter (inches)

Hot-Water Storage Capacity (Gallons)
Tank Length (ft)
12345678910
20 16 32 48 66 82 98 114 131 147 163
22 20 40 60 80 100 120 140 160 180 200
24 24 48 72 96 120 144 168 192 216 240
30 37 74 110 147 184 220 257 294 330 367
36 53 106 159 212 265 317 370 423 476 529
42 72 144 216 288 360 432 504 576 648 720
• 1 ft (foot) = 0.3048 m
• 1 in (inch) = 25.4 mm = 2.54 cm = 0.0254 m
• 1 Gallon (U.S.) = 3.785x10-3 m3 = 3.785 dm3 (liter)

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