Features:
- Never run out of hot water again with a steady 10 GPM flow rate
- Conveniently mounts to your wall for a low profile installation
- Comes packaged with a remote control for simple operation
- 4″ category III power venting required with a maximum length of 50′
- Electronic ignition ensures you never have to mess with a pilot light again
- Complies with lead-free standards and SCAQMD rules for NOx emissions
- Protected by a multitude of built-in safety features such as freeze protection, an overheat cutoff fuse, constant temperature monitoring, air fuel ratio rod, and flame sensor
- Includes a 15-year limited warranty on the heat exchanger (6-year in commercial applications) and a 5-year warranty on all parts
- Easily link up to 4 units without needing additional parts or accessories, and up to 20 units with the TM-MC01 (sold separately)
- Durable heat exchanger is constructed of commercial-grade copper resulting in greatly increased heat transfer and resistance to erosion
- Designed for outdoor use only
Specifications:
- Height: 20-1/2″
- Width: 13-3/4″
- Depth: 10″
- Max BTU Input: 199000
- Maximum Flow Rate: 10 GPM
- Fuel Type: Natural Gas
- Energy Factor: 0.82
- Altitude Certification: 6000 Feet Above Sea Level
Product Variations:
- ATO-110U-N: 6.6 GPM Outdoor Tankless Water Heater
- ATO-310U-N: 8 GPM Outdoor Tankless Water Heater
- ATO-510U-N (This Model): 10 GPM Outdoor Tankless Water Heater












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