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AO Smith®
AO Smith® 100227698 ATO-110U Tankless Water Heater, Natural Gas Fuel, 140000 Btu/hr Heating, Outdoor, Non-Condensing, 6.6 gpm Flow Rate, Direct/Power Vent, 0.81, Commercial/Residential
AO Smith®

AO Smith® 100227698 ATO-110U Tankless Water Heater, Natural Gas Fuel, 140000 Btu/hr Heating, Outdoor, Non-Condensing, 6.6 gpm Flow Rate, Direct/Power Vent, 0.81, Commercial/Residential

BrandAO Smith®
MFR Part NoATO-110-U
TSCO Part Number544429

Warranty Length

  • 15 Years Limited on Heat Exchanger in Residential Application/5 Years Limited on Heat Exchanger in Commercial Application and 5 Years Limited on All Parts

Features

  • Built-in freeze protection
  • Manual reset hi limit (up to 194 deg F)
  • Overheat cutoff fuse
  • Inlet and outlet thermistors for constant temperature monitoring
  • Air fuel ratio rod
  • Flame sensor
  • 3 in combustion air intake
  • 60 ft max length, 6 elbows max
  • Outdoor models include remote control as a standard feature
  • Outdoor models are certified from 0 to 6000 ft elevation
  • Copper heat exchanger - 25x better heat transfer than stainless steel thus stabilizing outgoing water temperature quicker and reducing pressure drop across the heat exchanger

Standard Approvals

  • ANSI Z21.10.3 AHRI Certified
  • CSA Certified
  • Low Lead IAPMO R and T
  • SCAQMD Rule 1146.2