Buderus SM80 is a vertical, dual-coil indirect hot water tank with 75.4-gallon DHW capacity. It features Thermoglaze ceramic coating (on both tank and coil), (2) magnesium anode rods for superior corrosion protection and large front clean-out for easy access and maintenance. Dual-coil design allows to use two heat sources (i.e. boiler and solar).
Technical Specifications:- Domestic Water Capacity (Gallons): 75.4
- Heat Exchanger Type: Dual Coil
- Domestic Hot Water (DHW) Connection: 1" NPT
- Domestic Cold Water Connection: 1" NPT
- Boiler (Heat Exchanger Coil) Connections: 1" NPT
- Hot Water Recirculation Connection: 3/4" NPT
- Max DHW Temperature: 203°F
- Max DHW Operating Pressure: 150 psi
- Max Boiler Water Temperature: 230°F
- Max Boiler/Heat Exchanger Coil Side Pressure (psi): 232
- Stand-by Heat Loss (°F/hr): 0.6
- Continuous Domestic Hot Water Flow (77°F Rise, 180°F Boiler Temp.) (Gallons/hr): 185.0 - Lower Coil
- 135.0 - Upper Coil
- 298.0 - Dual Coil
- 278.0 - Dual Coil (Parallel)
- 1st Hour Rating (77°F Rise, 180°F Boiler Temp.) (Gallons/hr): 257.0 - Lower Coil
- 135.0 - Upper Coil
- 363.0 - Dual Coil
- 345.0 - Dual Coil (Parallel)
- Min. Boiler Output (BTU): 112.4 - Lower Coil
- 78.2 - Upper Coil
- 178.8 - Dual Coil
- 156.7 - Dual Coil (Parallel)
- Min. Boiler Water Flow Rate (GPM): 11.4
- Dimensions (Diameter x Height): 36-3/8" x 58-7/8"
- Empty Weight (lbs): 260.
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