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AO Smith®
A.O. Smith 100374812 ATHR-199X3 100 Tankless Water Heater, Natural Gas Fuel, 199000 Btu/hr Heating, Indoor/Outdoor, Condensing, 10.5 gpm Flow Rate, Direct/Power Vent, 0.95, Residential
AO Smith®

A.O. Smith 100374812 ATHR-199X3 100 Tankless Water Heater, Natural Gas Fuel, 199000 Btu/hr Heating, Indoor/Outdoor, Condensing, 10.5 gpm Flow Rate, Direct/Power Vent, 0.95, Residential

BrandAO Smith®
MFR Part No100374812
TSCO Part Number1245433

Features

  • ENERGY STAR® certified with a UEF of 0.95
  • Flexibility in Installation—Field convertible from natural gas to liquid propane; PVC venting flexibility (2” up to 75’ & 3" up to 150’); Install indoor or outdoor (outdoor kit sold separately)
  • Save up to $116/year on annual operating costs—When compared to a standard 50-gallon atmospheric natural gas tank water heater.
  • Lasts 3x Longer!—with X3® Scale Prevention Technology provides protection for the heat exchanger.
  • Improved Efficiency & Reliability—Patented heavy-duty, stainless-steel heat exchanger features only two weld points and eliminates the need for a secondary heat exchanger
  • Reduced Wait Time for Hot Water—Integrated recirculation pump assists in the delivery of hot water quickly (recirculation plumbing from fixture to unit required)
  • Expandable for Larger Applications—Cascade up to 12 like heaters when multiple water heaters are required to work in conjunction (cable included)
  • Built-in Control Display—Check status, error codes and settings and review up to two (2) recirculating schedules using the built-in display
  • Optional Remote Activation—An optional kit allows the user to engage the heater to recirculate hot water at a touch of a button for on-demand, continuous hot water