Mizudo Natural Gas Tankless Water Heater 100,000 BTU, Up to 4.3 GPM Instant Hot Water Heater NG, Indoor Installation, CSA Certified, White

20.5'' x 13.0'' x 7'', 1/4 size of 50 gal tank heater,. Non-Condensing wall-hung to save space. Natural Gas, 100,000 BTU, Indoor, 120V. Up to 4.3 GPM hot water flow, UEF over 0.81. Hot water for 2-3 points, up to 2 showers simultaneously, depend on inlet water temp. Gas/Water connection: 3/4" NPT, Power Vent 3". Water pressure 15-150 PSI, Touch Panel with LED Display. Temperature range 95-149 F, precise temp control +/-1F. On-demand endless hot water, Oxygen-Free Copper to high heat transfer efficiency. Intake fresh air from inside the house, Nidec DC fan effectively prevents air backflow. Enclosed burner no loss of heat accumulation, Overheat and accidental flame failure protection. CSA certified, no anode rod needed, longer lifespan than tank water heater about 20-25 years. No anode rod needed, No water temperature sandwich.