Noritz EZTR40-NG Tankless Water Heater, 40-Gallon Tank Replacement, Natural Gas
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The Noritz EZTR40-NG is a natural gas tankless water heater built to take the place of a 40-gallon tank. With up to 120,000 BTU, top water connections and venting that runs through existing B-vent, it lets an installer convert a home in about the time a tank swap takes.
Retrofit work stays simple: flex lines attach at the top just as on a tank, the gas inlet ties into an existing 1/2 in. line, and the flexible venting connects straight to the old B-vent. The compact cabinet allows installation in tight spaces.
A built-in display offers preset outlet temperatures of 120°F, 130°F and 140°F. Safety functions cover flame, overheat, lightning and freeze protection, with temperature lockout, high-elevation adjustment and built-in troubleshooting aids for quick fault finding.
Highlights
15,000 to 120,000 BTU input
0.87 UEF, Energy Star
Vents through existing B-vent
Top-mounted water connections accept flex lines
Works with an existing 1/2 in. gas line
Preset temperatures of 120°F, 130°F and 140°F
Specifications
Brand | Noritz |
Model | EZTR40-NG |
Input | 15,000-120,000 BTU/h |
Efficiency | 0.87 UEF |
Fuel | Natural gas |
Ignition | Electronic |
Temperature range | 115-140°F |
Water pressure | 15-150 psi |
Connections | 3/4 in. |
Venting | Direct, B-vent compatible |
Voltage | 120 V |
Amps | 0.3 A |
Mounting | Wall |
Height | 27.2 in. |
Width | 18.3 in. |
Depth | 9.4 in. |
Weight | 50 lb |
Certifications | Energy Star, CSA, ANSI Z21.10.3/CSA 4.3, UPC, NSF, Low NOx, AHRI |
Good to know
Gas-fired appliance: it must be installed, vented and commissioned by a qualified installer in line with local codes and the manufacturer's installation manual.