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A.O. Smith® Commercial Indoor Tankless Water Heater

Part 627551
Please Note
In lower 48 states

Product Details

  • A.O. Smith® Commercial Indoor Tankless Water Heater
  • Energy Star Qualified
  • Flow Rates Up To 10 GPM
  • ULN Compliant
  • Primary Copper Heat Exchanger for Better Heat Transfer
  • Natural Gas
  • Indoor Model
  • Electronic Ignition
  • No Pilot Light
  • Factory Installed Power Cord
  • Exhaust, 3 PVC Venting Up To 70' Or 4 PVC Venting Up To 100'
  • 199,000 Btu
  • Mfg #ATI-540H-N
California residents: Prop 65 Warnings


Cancer and Reproductive Harm -

Product Specs

Make & Model
Brand A.O. Smith
Country of Origin JAPAN
UNSPSC 40101825
Manufacturer Part No ATI-540H-N
Vent Type Per Local Building Codes
Commercial/Residential Commercial or Residential
Max Gallons Per Minute 10
Water Connection Size 3/4"
Energy Factor 0.93
Indoor/Outdoor Indoor
BTU Heat Rating 199,000
Gas Type Natural Gas
Water Connection Location Bottom
Assembled Dimensions
Product Height 23.63"
Product Weight 71 Lbs
Product Depth 11.25"
Product Width 17.75"
Height 24
Certifications & Standards
Made in the USA No
ADA Approved No
UL Listed No
TAA/BAA Compliant Yes
GSA Scheduled Yes
AbilityOne No
Hazardous No
Packaging Dimensions
Height 24.000
Width 18.000
Size Measure IN
Weight 59.000
Weight Measure LB
Length 12.000

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