SU80 Indirect Hot Water Heater, 77.4 Gal


Brand: Bosch

Mfr Part#: 8718541924

Model: SU80

Usually ships: within 2-3 business days
Qty Price
$1,735.95 / each & Free Shipping
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Buderus S80 is a vertical, single-coil indirect hot water tank with rear side connections and 77.4-gallon DHW capacity. It features Thermoglaze ceramic coating (on both tank and coil) and (2) magnesium anode rods for superior corrosion protection, as well as large front clean-out for easy access and maintenance.

Technical Specifications:

  • Domestic Water Capacity (Gallons): 77.4;
  • Heat Exchanger Type: Single 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): 0.5;
  • Continuous Domestic Hot Water Flow (77°F Rise, 180°F Boiler Temp.) (Gallons/hr): 189.0;
  • 1st Hour Rating (77°F Rise, 180°F Boiler Temp.) (Gallons/hr): 264.0;
  • Min. Boiler Output (BTU): 119,000;
  • Min. Boiler Water Flow Rate (GPM): 11.4;
  • Dimensions (Diameter x Height): 26-3/8" x 58-7/8";
  • Empty Weight (lbs): 231.5.


6-year limited tank warranty for Residential Application / 2-year limited tank warranty for Commercial Application
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