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This is a natural gas, non-condensing tankless water heater rated at 160,000 BTU and up to 6.6 GPM, enough for roughly two showers plus a running appliance at once. It mounts indoors on a wall and vents through a concentric pipe, so it needs a single wall penetration rather than a rooftop flue. Its 0.81 Uniform Energy Factor and ultra-low NOx rating sit mid-pack among high-efficiency tankless units; condensing models do better on efficiency but cost more and need drain lines. It suits households of up to about six people replacing a tank, and owners generally praise endless hot water and the small footprint, while some note the minimum flow needed to fire and the cost of professional installation.
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Lowest price we've seen: $893.34 on Nov 9 at The Home Depot. Tracked across 2 stores since Nov 9.
Owners of Rinnai tankless units generally report reliable endless hot water and long service life. Common complaints center on installation cost, cold-water sandwich at startup, and the flow threshold needed to ignite the burner.
This Rinnai tankless water heater heats water on demand instead of storing it in a tank. It is a high efficiency, non-condensing model that runs on natural gas and is rated at 160,000 BTU. It delivers up to 6.6 gallons per minute and has a Uniform Energy Factor of 0.81.
The unit mounts on a wall and is installed indoors. It uses electric ignition and a concentric vent, and it has a 3/4-inch water connection. Output temperature can be set from 120 to 140 degrees Fahrenheit. Emissions are rated Ultra Low NOx.
It is a high altitude model and can be used in mobile homes. It is Wi-Fi compatible and is graded for commercial and residential use.
