- Max Flow Rate up to 10.5 GPM
- 180,000 BTU input
- Highly Efficient – 0.82 UEF
- Cascade up to 12 units with one cable per heater (cable included)
- Ultra Low NOx Emissions
- Ease Of Installation – 3/4” Gas Line or larger
- Certified from Sea Level to 7,800 ft
- Approved for installation in manufactured homes
- 5-year limited warranty on all parts in residential applications
- 10-year limited warranty on heat exchanger in residential applications
State Adapt® NC Non-Condensing Tankless water heaters with X3® scale prevention technology deliver exceptional performance for indoor or outdoor installations. X3® models feature patented technology which eliminates the need for annual descaling and extends the unit's life up to three times longer than unprotected heaters. Base models offer the same robust performance and ease of installation – using 3/4” (or larger) gas line, but require annual maintenance to prevent scale buildup.
With a maximum flow rate of up to 10.5 gallons per minute and ultra-low NOx emissions, all models provide reliable, energy-efficient hot water on demand. These high-performing tankless water heaters feature a uniform energy factor of 0.82, comply with strict NOx emission standards, and provide freeze protection down to -5°F. Enjoy peace of mind with a 10-year heat exchanger warranty for base models (excludes coverage for hard water conditions) and a 15-year heat exchanger warranty for X3® models (no hard water exclusions). Indoor models use convenient concentric venting, while outdoor models come equipped with outdoor-rated power cords, and all X3® models include a pressure relief valve for added safety.
