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The Noritz NRC98-OD-NG is an outdoor, condensing tankless water heater that runs on natural gas and fires up to 180,000 BTU per hour for a maximum flow of 9.8 GPM. Its 93% condensing efficiency earns an ENERGY STAR rating, and because it mounts outdoors it needs no venting, which simplifies installation on exterior walls. Noritz sizes it for northern homes with two bathrooms or southern homes with three. The commercial-grade copper heat exchanger uses piping about 25% thicker than standard models, a durability point Noritz leans on against cheaper tankless units. It suits households replacing a tank or adding endless hot water where an outdoor wall is available.
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Lowest price we've seen: $2,327.00 on Nov 10 at Heat & Cool. Tracked across 2 stores since Nov 10.
Owners of Noritz condensing outdoor units generally report strong, consistent hot water and few problems when the unit is sized and installed correctly. Complaints center on installer errors, freeze protection in cold snaps and the maintenance tankless heaters demand.
The Noritz NRC98-OD-NG is a residential condensing tankless water heater for natural gas. It is an ENERGY STAR rated outdoor model, and it requires no venting. It has a maximum input of 180,000 BTU per hour and a flow rate of 9.8 GPM.
The heat exchanger is made with commercial grade copper. The piping is 25% thicker than in standard models. The unit is fully condensing and 93% efficient.
It is designed for northern homes with two bathrooms and southern homes with three baths.
