The perfect combination of high efficiency, comfort and value in a propane gas tankless water heater from Rinnai. Ideal for small to medium homes or remodels, compact, easy-to-install, reliable and perfect for indoor locations; Rinnai products provide peace of mind with warranties that surpass the competition. Features: Professional installation required; call 84-GO-Rinnai for assistance. Uniform Energy Factor of 0.82 Improve your lifestyle by never running out of hot water. Save time with hot water whenever and wherever you need it, any size home, even for simultaneous uses at multiple fixtures Save energy and reduce utility costs by operating only when hot water is needed Maximum output, minimum space. Suitable for exterior in non-traditional spaces. Optimized concentric vertical or horizontal PVP/CPVC venting system termination configurations available -featuring inner pipe for exhaust and outer pipe for fresh outdoor air; resulting in a direct-vent system with one penetration through the wall or roof. Wi-Fi Ready; requires control-r® module Residential warranty: Limited 15-years on heat exchanger, 5-year on parts, and 1-year on labor (Register within 90 days and receive an additional 4yrs of labor coverage FREE a $250 value). Commercial Warranty: Limited 8-years or 12,000 hrs. on heat exchanger, 5-years on parts, and 1-year on labor (Register within 90 days and receive an additional 1 year of labor coverage). Specifications: Width: 14-1/16 Height: 27-1/4 Depth: 10-3/4 Fuel Type: Liquid Propane Gas Connection: 3/4" Water Connection: 3/4" Water Pressure (Min): 20 psi Water Pressure (Max): 150 psi Temperature (Min): 98°F Temperature (Max): 140°F Voltage: 120V Frequency: 60 Frequency: 61