Noritz NRC661 6.6 GPM Indoor Natural Gas Condensing Tankless Water Heater

Get energy-efficient, endless, hot water at a low installation cost.

Noritz's Energy Star rated NRC661 is the newest efficient condensing heater with a half inch gas line. It features the same energy-saving condensing technology used with other eco-TOUGH Series heaters. The NRC661 features an Energy Factor of 0.91 for natural gas. These ratings are almost 10 points higher than those of a comparably sized, conventional tankless heater, and about 30 points higher than standard, tank-type gas-fired water heaters.

With a maximum input of 120,000 BTUs per hour, using a 1/2 inch gas line up to 120' long. A more accurate interpretation of the National Fuel Gas Code allows the use of the gas pipes with a smaller-diameter for inputs of up to 174,000 BTUh, for as long as the water column pressure in the unit inlet is at a minimum eight inches.

Specifications

Installation	Indoor
Home Size	Southern climate: 2 baths Northern climate: 1.5 baths
Unit Dimensions	20.5” (H) x 13.8” (W) x 6.7” (D)
Weight	39 lbs.
Gas Consumption	Min: 15,000 btuh Max: 120,000 btuh
(NG & LP)	Natural Gas/Propane
Capacity Range	0.5-6.6 Gal./min.
Energy Factor	0.91 (NG) 0.93 (LP)
Thermal Efficiency	93%
Temperature Settings	100-140°F (In 5°F intervals) (9 Options)

  •  Technical specifications
  •  Install manual
  •  Owner's manual