AO Smith®

AO Smith® Cyclone® Mxi 100234946 BTH-400A Modulating High Efficiency Gas Water Heater, 119 gal Tank, 399900 Btu/hr Heating, Natural Gas Fuel, Power Direct Vent, Direct Spark Ignition, Tall or Short: Tall, Ultra Low NOx: Yes

1434458 MFG #: 100234946
$18,778.00 / ea
AO Smith® Cyclone® Mxi 100234946 BTH-400A Modulating High Efficiency Gas Water Heater, 119 gal Tank, 399900 Btu/hr Heating, Natural Gas Fuel, Power Direct Vent, Direct Spark Ignition, Tall or Short: Tall, Ultra Low NOx: Yes
  • Dimensions: 33-1/8 in Dia x 75-3/4 in H
  • Energy Efficiency: 95
  • Fuel Type: Natural Gas
  • Gas Connection: 1-1/2 in NPT
  • Heating Capacity: 399900
  • Ignition Type: Direct Spark
  • Material: Glass Lined Steel
  • Pressure Rating: 160
  • Recovery Rate: 1535 gph at 30 deg F Rise
  • Series: BTH-400A
  • Tall or Short: Tall
  • Tank Capacity: 119
  • Temperature Rating: 90 to 180
  • Type: Modulating
  • Ultra Low NOx: Yes
  • Vent Size: 4
  • Vent Type: Direct/Power
  • Water Connection: 1-1/2 in NPT
  • ASME Yes/No: Yes

AO Smith® Cyclone® Mxi Gas Water Heater, Modulating High Efficiency, Series: BTH-400A, 399900 Btu/hr Heating, Natural Gas, 1-1/2 in NPT Gas Connection, 119 gal Tank, Direct Spark Ignition, Power Direct Vent, 4 in Vent Size, 512 gph at 90 deg F Rise Recovery, 0.95 Energy Efficient, 1-1/2 in NPT Water Connection, 160 psi, Tall, Ultra Low NOx: Yes, Glass Lined Steel, 33-1/8 in Dia x 75-3/4 in H

The full line of A.O. Smith Cyclone® MXI condensing water heaters has been designed to provide years of dependable service and feature industry leading technology. Models are available from 120000 to 500000 Btu/hr and all deliver thermal efficiencies of 95% and higher. The unique helical coil heat exchanger limits weld joints for optimal service life while maximizing heat transfer. Cyclone® is the industry leader in high efficiency commercial water heating. The current Mxi modulating models adjust firing rate to the specific demand further increasing efficiency and money savings.

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  • Features
  • Intelligent control system with LCD display and iCOMM connectivity onboard
  • Submerged combustion chamber with helical heat exchanger coil positioned in center of tank
  • Powered anodes standard on all models provides long lasting tank protection in varying water conditions
  • PermaGlas® Ultra Coat™ glass lining glass coating is applied using a liquid slush coating technique to ensure uniform coating
  • Mechanical venting versatility conventional power venting or direct venting
  • High efficiency modulating premix powered burner down-fired pre-mix burner provides optimum efficiency and quiet operation
  • All models approved for installation from sea level to 10100 ft elevation
  • Standard/Approvals: ASME Tank Construction|CSA Certified and ASME Specified T&P Relief Valve|Certified By Underwriters Laboratories (UL) Inc. to ANSI Z21.10.3 - CSA 4.3 Standards|Complies With SCAQMD Rule 1146.2 and Other Air Quality Management Districts with Similar Require
  • INCLUDES: Temperature and Pressure Relief Valve
  • WARRANTY: 3 Years Limited Tank and 1 Year Limited Parts