Noritz EZTR75NG Condensing Tankless Water Heater, Natural Gas, 75-Gal Class

The Noritz EZTR75NG is a condensing natural gas tankless water heater that performs like a 75-gallon storage tank. It modulates from 18,000 to 199,000 BTU and delivers up to 11.1 GPM, making it a practical upgrade for homes that need plenty of hot water.

A typical tankless retrofit calls for new venting through an exterior wall and a larger gas line. This model avoids much of that: its top water connections match a tank layout, 2 in. polypropylene venting runs through the existing B-vent chimney, and it works with a 1/2 in. gas pipe. An N-Flex Kit and an attached power cord come with the unit, and it suits indoor or outdoor placement.

Built with 316L stainless steel, the heater resists corrosion and scale buildup. Presets of 120°F, 130°F and 140°F are available, with a remote thermostat for adjustment, Wi-Fi compatibility and the Noritz Connect app for diagnostics and maintenance reminders.

Highlights

• 18,000 to 199,000 BTU input with up to 11.1 GPM

• 0.96 UEF with direct electronic ignition, no pilot light

• Vents through an existing B-vent chimney

• N-Flex Kit included

• 316L stainless steel construction

• Wi-Fi compatible with Noritz Connect app control

Specifications

In the box

• N-Flex Kit

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.