- ENERGY STAR® certified - Up to 96% thermal efficiency dramatically lowers operating costs
- Intelligent Demand Response control system senses large water draws and automatically adjusts the differential setpoint, increasing the hot water available when it is needed the most
- Submerged combustion chamber, with helical heat exchanger, positioned in center of tank, surrounded by water to virtually eliminate radiant heat loss from chamber
- iCOMM™ remote monitoring provides detailed diagnostic fault notifications and control of the set point and differential using the free A.O. Smith app
- Mechanical venting versatility with convention power venting or direct venting vertically or through side wall with low cost PVC Schedule 40 intake and exhaust pipe
- Direct-vent intake and exhaust pipe can terminate separately outside building or through single opening, using concentric vent assembly
- High efficiency modulating down-fired pre-mix burner provides optimum efficiency and quiet operation
- Permaglas® Ultra Coat™ glass lining coating is applied using a liquid slush coating technique to ensure uniform coating
- 3-year limited tank and 1-year limited parts warranty
The full line of A. O. Smith Cyclone® Mxi condensing water heaters have been designed to provide years of dependable service and feature industry leading technology. Models are available from 120,000 to 500,000 Btu/h 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. BTH-300 uses up to 300,000 BTU/h of gas to deliver 349 GPH at 100°F rise. A. O. Smith offers the largest commercial product selection available, including the most specified commercial unit in the U.S. We offer more than 500 different commercial models, including gas fired, oil-fired and electric configurations, ranging in capacities from 5 to 10,000 gallons, with input range from 50,000 BTU to the equivalent of 4,000,000 BTU. Our comprehensive line is the natural fit for spec jobs requiring everything from the smallest commercial installation up to the largest multi-structure complex.
Blocked Air Intake Error
Blocked Exhaust Error
Hardware Failure - Flame Rod Short
Cyclone MXI: Controls Overview
Ignition Failure Error
Low Gas Pressure Error
No Blower Speed Feedback