High Capacity Performance Rated for 45 applications, delivering on-demand hot water for up to 3 bathrooms simultaneously. Powerful Output 7.0 GPM at 180,000 BTUs with a 45° rise; the largest capacity model in the Eccotemp Builder Series, ideal for single-family homes, townhomes, condos, cabins, apartments, or light commercial use. Certified Safe & Efficient CSA-certified for installation in the US and Canada; meets and exceeds DOE safety and efficiency requirements. Advanced Technology Generation 3 computer board with high-performance processing and smart adjust technology for optimized operation. Enhanced Safety Built-in incoming and outgoing water temperature sensors ensure reliable temperature control and protection. Outdoor Installation Designed for outdoor use; requires no venting system. Long-Term Reliability 10-year heat exchanger warranty, 5-year components, 30-day parts/accessories, plus live chat and self-help guides. Optional Maintenance Kit Compatible with the patented EZ-F