6.6 GPM Natural Gas Outdoor Tankless Water Heater The T-KJr2-IN-NG model is the smallest unit in the Takagi line-up. The T-KJr2-IN-NG is perfect for light residential (i.e. small apartment units) and radiant heating applications. This small but powerful unit, with gas inputs up to 140,000 BTU per hour, can meet all the hot water needs of a small American Home or apartment with one or two bathrooms. This unit will flow at a maximum of 6.6 gallons per minute. The Takagi T-KJr2-IN-NG can virtually do anything a 40 gallon tank-type water heater can do and more! The wall mounted T-KJr2-OS can support hydronic baseboard or radiant floor heating applications, as well as provide domestic hot water to plumbing fixtures and appliances. Features: Capacity 1-2 Showers (Depending on climate) Gas Fired Tankless Water Heater Outdoor Installation Only Safety Features: Air-Fuel Ratio Sensor (AFR), Exhaust and Water Temperature Safety Control, and Overheat Cutoff Fuse Internal Freeze Protection System Manual reset switch Specifications: Min 19,500 BTU/h Max 140,000 BTU/h Energy Factor - 0.82 Dimensions - H 20.3" x W 13.8" x D 8.5" Weight - 33 lbs Clearance- Top: 36", Bottom: 12", Front: 24", Back: 1", Sides: 2" Venting: No venting required Electric Ignition Accessories: TK-RE02 - Temperature Remote Control TK-PCJr2 - Pipe Cover 9007674005 - Heater Recess Box Why choose Takagi? Takagi produce some of the most highly efficient tankless water heaters in the industry. With a commitment to innovation and quality, they are constantly creating new technology to keep up with their customers’ ever-changing hot water needs. Takagi sets the bar with the most stringent of durability testing standards for all of our models. For 15 years, Takagi has provided the most eco-friendly, energy-efficient water heating solutions in North America.