Eccotemp FVI12-LP Liquid Propane Gas Tankless Water Heaters, White Whole home indoor,gas powered tankless water heater, rated at 3.6 GPM that activates only when in use, making it an energy saver. For indoor installation with safe, efficient power ventilation and perfect for any small home, cabin or apartment. Easy to read digital temperature display, on a compact and space-saving design with minimal noise output. Safe electronic ignition system; plugs into standard 120v electrical outlet with UL-listed cord. Uses standard 1/2" NPT water fittings and is equipped with easy to use manual water temperature controls.