AO Smith BT80

BT-80 74 Gallon 75,100 BTU Commercial Gas Water Heater

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AO Smith BT80

AO Smith BT-80 74 Gallon 75,100 BTU Commercial Gas Water Heater
Rating: (1 Reviews)
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Quick Specs:
Brand: AO Smith
UPC: 671657999216
Stock Id: SID290876
Fuel Type: Natural Gas
Width: 26.5"
Height: 61.125"
Depth: 26.5"
Technical Details
Warranty: 3 Yr Limited Tank
Weight (lbs): 271 lbs
Application: Plumbing
Diameter: 26-1/2"
Usage: Commercial
Efficiency: 80%
Capacity (Gallons): 74 Gallon
BTU Input: 75100
Vent Type: Type B
Vent Size: 4"
Water Connection: 1"
Gas Connection: 1/2"
Recovery 100F Rise: 73 GPH
Recovery 40F Rise: 182 GPH
Recovery 140F Rise: 52 GPH
Max Pressure (PSI): 150 PSI
Max Pressure: 14" W.C.
Tankless: No

For millions of consumers, business owners, property managers and engineers worldwide, A. O. Smith has delivered innovative hot water solutions for over 70 years. Sold exclusively by plumbing wholesalers and plumbing contractors, A. O. Smith’s selection of residential and commercial water heaters, boilers and storage tanks is unmatched for quality and diversity. Anywhere hot water is needed, A. O. Smith can provide an energy-efficient solution with maximum value during and for years after installation. And, A. O. Smith stands behind its products and its customers with world-class service, combining cutting-edge technology with committed people who take pride in being the very best.


  • 80% Thermal efficiency
  • Installed ASME T & P valve
  • Glass lined tank, foam insulation
  • Handhole cleanout on BT80 and BT100
  • Fully automatic controls with safety shut off
  • Draft diverter
  • Gas pressure regulator
  • Max working pressure 150 psi
  • 3-Year warranty on tank assembly


  • Application: Plumbing
  • Fuel Type: Natural Gas
  • Height: 61.125
  • Vent Size: 4"
  • Vent Type: Type B
  • Diameter: 26-1/2"
  • Efficiency: 80%
  • Capacity (Gallons): 74 Gallon
  • Water Connection: 1"
  • Gas Connection: 1/2"
  • Max Pressure (PSI): 150 psi
  • ASME: Yes
  • Weight (lbs): 271 lbs
  • BTU Input: 75100
  • Max Pressure: 14" W.C.
  • Recovery 40°F Rise: 182 GPH
  • Recovery 100°F Rise: 73 GPH
  • Recovery 140°F Rise: 52 GPH
  • Warranty: 3 Yr Limited Tank

AO Smith BT80 Reviews & Ratings

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Elaine R. Andrews
From: Jacksonville, FL
Reviewed on: November 9, 2012
Overall Rating: 5.0

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Verified Owner
"I'm Satisfied with this water heater. Easy to install, great price and sufficient features. Works Well!" Will Recommend: Yes
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