ThermoMate CZ422NG, Natural Gas Tankless Water Heater Indoor, Up to 5 GPM | 113,000 BTU, High Efficiency Instant On-Demand Hot Water for Bathroom, Kitchen, Residential, Multi-Point Heating

ThermoMate CZ422NG, Natural Gas Tankless Water Heater Indoor, Up to 5 GPM | 113,000 BTU, High Efficiency Instant On-Demand Hot Water for Bathroom, Kitchen, Residential, Multi-Point Heating

• [Max 5 GPM & 113,000 BTU] – The ThermoMate instant water heater delivers hot water on-demand for two showers at the same time, maintaining a stable 105°F (based on 65°F inlet temperature). No waiting, no cold-water interruptions—perfect for busy homes. Its smart flow sensor and control chip adjust heating 20,000 times per second, ensuring ±1°F temperature consistency.
• [Safety & Reliable] - Certified by CSA, this residential gas water heater features boil-dry, freeze, flame-out, overheat, over temperature, timeout, pipe blockage, high-temperature lock, and excessive air pressure protections for safe and dependable operation. The freeze protection automatically activates at 41°F (5°C).
• [Energy Efficient & Save Money] – Built with an oxygen-free copper heat exchanger for efficient heat transfer and corrosion resistance, this natural gas water heater delivers up to 98% thermal efficiency with a UEF of 0.81. Its energy-efficient design reduces energy waste and can lower annual operating costs by approximately 30% compared with traditional water heaters.
• [Easy to Install & Save Space] – Designed for whole house use, this indoor water heater measures only 21"H × 13"W × 7"D and occupies less than one-third of the space of traditional water heater models. Standard 3/4" NPT water inlet/outlet connections, a 1/2" NPT gas inlet, a 3" OD vent connection, and UL-approved 120V plug make installation simple in most homes.
• [Smart Diagnostic Display] - Easily adjust water temperature (90–140°F) and keep track of flow, fan, and flame status on the 3.5-inch LED display. Advanced error codes allow fast troubleshooting, while the UL-certified 120V/5-foot cord keeps the system powered and monitored at all times.
• [Wind Resistant] - Engineered with a DC High-speed Fan (360Pa static pressure/3000 RPM), the system ensures powerful exhaust evacuation capable of withstanding winds from a major hurricane (Category 3 and above, >111 mph/178 km/h), eliminating safety risks like backdraft and flameouts during the most extreme weather.