NORITZ 120,000 BTU, 6.6 GPM Residential Outdoor Condensing Front Exhaust Natural Gas Tankless Water Heater

The NRC66 is an ENERGY STAR rated, condensing model with a half inch gas line. Featuring the same energy-saving condensing technology as the rest of the Noritz eco-TOUGH Series of gas-fired residential tankless water heaters, the NRC66 has an Energy Factor of 0.91 for natural gas and 0.93 for LP. These ratings are nearly 10 points higher than that of a comparable sized, conventional tankless unit, and approximately 30 points higher than a standard, tank-type gas-fired water heater. A new, more accurate interpretation of the National Fuel Gas Code permits the use of the smaller-diameter gas piping for inputs up to 174,000 BTUh, as long as the water column pressure at the inlet of the unit is a minimum eight inches.|Standard input - gas consumption ranges from 15,000 BTUh to 120,000 BTUh|Capacity range - flow rates from 0.5 GPM up to 6.6 GPM (at a 30 degree temperature rise)|Compact design- ANSI Z21.10.3/CSA 4.3 certified design that can be wall-mounted outdoors|This unit does not require venting|Temperature controls - includes built in display that can preset the output temperature to either 120, 135, or 140 degrees Fahrenheit|Cold water connection size (in) 3/4|Hot water connection size (in) 3/4|Gas connection size (in) 1/2 up to 120 ft. in length|Power supply 120 VAC (60Hz)|Exhaust vent material requirements PVC or CPVC|Durable steel casing with polyester coating|For outdoor installations only