Model NR-98-DVC (GQ-2857WX-FFA US) Residential Tankless Water Heater
Non-condensing, Natural Gas (NG)
Concentric Direct Venting
With plenty of power to heat multiple points of hot water use, the NR-98-DVC tankless water heater is perfect for mid-sized to large homes that have up to 4 showers. The Concentric Direct Vent model takes fresh air from the same vent pipe as the exhaust pipe. The exhaust is carried outside with the inner 3" pipe, and the fresh air is taken from the outside with the outer 5" diameter pipe layer.
♦ Gas consumption range from 16,000 BTUh to 199,900 BTUh
♦ Flow rate range from 0.5 GPM to 9.8 GPM
♦ Can be wall-mounted indoors with a Single Vent (-SV) or Concentric Direct Vent (-DVC) model, or outdoors with an -OD model
♦ Highest-quality heat exchanger: Manufactured with commercial grade copper, 25% thicker piping than standard models
♦ Venting options available in Power Vent (-SV), Outdoor (-OD), or Concentric Direct Vent (-DVC) model that requires either 4" Category III or 5"/3" Noritz concentric stainless steel pipe
♦ Durable steel case with polyester coating to maintain its finish for many years.
♦ Direct electronic ignition
♦ Quick-Connect: The same models can be linked together with the optional Quick Connect Cord (QC-2) for twice the hot water capacity.
♦ Includes remote thermostat for precise adjustment of output temperature from 100°F to 140°F
♦ 6-foot power cord included with -SV and -DVC models. Assembly is required for SV models. Please consult manual.
♦ Safety and product protection features:
◊ Flame Sensor
◊ Overheat Prevention Device
◊ Lightning Protection Device
◊ Freeze Protection
♦ Temperature Lockout
♦ High Elevation Capability
♦ New Scale Detection Function
◊ ANSI Z21.10.3/CSA 4.3 certified design
◊ UPC: This product complies with California AB 1953 Low Lead Law and Section 1417(d) of the Safe Drinking Water Act.
◊ Low NOx Approved by SCAQMD [<14ng/J or 20ppm]
◊ Approved for installation in manufactured and mobile homes (OD and DVC models only)
◊ Heat Exchanger warranty in residences: 12 years or 6500 operational hours, whichever occurs first
◊ 5 year warranty on parts
◊ 1 year warranty for reasonable labor
Refer to the Noritz Limited Warranty here for complete coverage details.
|Home Size||Southern climate: 3 to 4 baths
Northern climate: 2 baths
|Dimensions||23.6" (H) x 13.8" (W) x 9.4" (D)|
|Gas Consumption||Min. 16,000 BTUH
Max. 199,900 BTUH
|Fuel type||Natural Gas|
|Capacity Range||0.5 to 9.8 gallons per minute|
|Uniform Energy Factor (UEF)||0.81|
|Temperature Settings||100 to 140° F (in 5° F Intervals. 9 options)|
Temperature increase above incoming water temperature at various flow rates
This is how to determine whether this tankless water heater will heat the amount of water you require.
|Temperature Rise (°F)||30||40||45||50||60||70||80||90||100|
Flow Rate (GPM)
Note that PVC CANNOT be used for venting.