Eccotemp i12-NG Tankless Water Heater Whole home indoor, gas powered tankless water heater, rated at 3 GPM that activates only on demand and no pilot light needed, reducing energy consumption Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls Features fully automatic temperature controls with an energy saving mode and child lock technology Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord Uses standard 1/2" NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation