Rinnai RU98eN Outdoor Natural Gas Tankless Water Heater


$1168.70


Retail Price: $1780.00
Weight: 136.00 lbs
MPN: REU-KB3237WD-US

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Rinnai RU98eN Outdoor Natural Gas Tankless Water Heater

Stop planning your evenings and mornings around your water heater. Now, you can set your own schedule, all thanks to the RU98eN. It delivers up to 9.8 gallons of hot water per minute while saving energy and money.

Features

  •  ENERGY STAR Qualified
  •  Propane and natural gas models available
  •  Compatible with a full range of Rinnai digital controllers
  •  Enhanced scale detection lessens the possibility of serious, long-term damage
  •  Temperature lock function prevents unauthorized or accidental changes to water temperature
  •  Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission levels
  •  Built-in Rinnai Circ-Logic recirculation system cycles the external pump at pre-set temperatures and intervals to maximize comfort and efficiency

Warranty

Rinnai RU98eN Outdoor Natural Gas Tankless Water Heater Item Years of Coverage (from purchase date)
  Residential use  
  Residential and space heating  
  Commercial use  
Heat exchanger  12  10  5
All other parts  5 5  5
Reasonable labor*  1 or 5 1or 5  1 or 2
* Extended labor warranty avaiable the unit is registered with Rinnai within 30 days of purchase. 

Click here for more information about the warranty.

Temperature rise (or delta T) in ºF at various flow rates

Rinnai RV53eN Exterior Tankless Natural Gas Water Heater

Feature Table

   Model*  

Capacity

Input BTUs
in thousands

Hot Water Capacity
in gallons per minute
(GPM)

Energy
Factor

Energy Use

Temperature Settings

Normal,
Standby,
Anti-Frost

Min
Max
Activation   Min     Max   Indoor
model
 
Outdoor
model

Residential

Commercial**

Value Series - Value and comfort for small to medium homes
V53eN
V53eP
19
(N)

20.2
(P)
120 0.6 0.6 5.3 0.82
55 Watts,
2 Watts,
184 Watts
33 Watts,
2 Watts,

74 watts
120°F - 140°F Residential only
V65iN
V65iP
V65eN
V65eP
10.3 150 0.4 0.26  6.6 0.82 76 Watts,
2 Watts,
120 Watts
57 Watts,
2 Watts,
104 Watts
98°F - 140°F 98°F - 160°F
(indoor)

98°F - 185°F
(outdoor)
V75iN
V75iP
V75eN
V75eP
10.3 180 0.4 0.26 7.5 0.82 76 Watts,
2 Watts,
120 Watts
57 Watts,
2 Watts,
104 Watts
98°F - 140°F 98°F - 160°F
Luxury Series - High output for larger homes
RL75iN
RL75iP
RL75eN
RL75eP
10.3 180 0.4 0.26 7.5 0.82 76 Watts,
2 Watts,
104 Watts
57 Watts,
2 Watts,
104 Watts
98°F - 140°F 98°F - 160°F
RL94iN
RL94iP
RL94eN
RL94eP
10.3 199 0.4 0.26 9.8 0.82 97 Watts,
2 Watts,
184 Watts
65 Watts,
2 Watts,
104 Watts
98°F - 140°F 98°F - 185°F
Ultra Series - Ultimate efficiency, largest capacity
RU80iN
RU80iP
RU80eN
RU80eP
15.2 152 0.4 0.26 h8 0.96 42 Watts,
2 Watts,
146 Watts
41 Watts,
2 Watts,
168 Watts
98°F - 140°F 98°F - 185°F
RU98iN
RU98iP
RU98eN
RU98eP
15.2 199 0.4 0.26 9.8 0.95 64 Watts,
2 Watts,
146 Watts
63 Watts,
2 Watts,
168 Watts
98°F - 140°F 98°F - 185°F

* e = Exterior/Outdoor; i = Interior/Indoor; N = Natural Gas; P = Liquid Propane
** Commercial controller must be purchased separately

Technical Specifications:

Type of Appliance: Condensing, Tankless, Temperature controlled, continuous flow, gas hot water system, Energy Star  Qualified
Rinnai model number: REU-KB3237WD-US
Operation / Installation: Forced combustion; outdoor only
Minimum/Maximum Gas Rate (Input): 15,200 / 199,000 BTU/h
Electrical: Appliance: AC 120 Volts - 60 Hz
 Temperature Controller: DC 12 Volts
Electrical Consumption: Normal: 63 watts. Standby: 2 watts. Anti-frost protection: 168 watts.
Ignition System: Direct electronic ignition
Hot Water Capacity: Minimum flow rate: 0.26 GPM, Minimum activation flow rate: 0.4 GPM, Maximum flow rate: 9.8 GPM
Temperature: 98° - 120° F (factory default) Maximum temperature is selectable at 120° F or at 140° F; 98° - 185° F available with the MCC-91-2 controller for commercial and hydronic applications                                 
Temperature (without remote): 120° F (factory default) or 140° F
Approved Gas Types: Natural or Propane (ensure unit matches gas type)
Energy Factor (EF): 0.95 Propane: 0.95
Service Connections Natural Gas: Gas supply: 3/4 inch MNPT. Cold water inlet: 3/4 inch MNPT. Hot water outlet: 3/4 inch MNPT.
Isolation & Pressure Relief Valves Included: Heavy duty forged brass Webstone Isolator valves EXP E2, certified
  to NSF/ANSI 61-8 for potable water
Water Flow Control: Water flow sensor, electronic water control and by-pass control
Minimum/Maximum Water Supply Pressure : 15 - 150 PSI (50 PSI or above is recommended for maximum flow)
Controller: MC-91-2US (included), Deluxe controller: MC-100V-1US (optional), Bathroom controller: BC-100V-1US (optional), MCC-91-2US (optional; for hydronic and commercial applications)
Controller Cable: Non-polarized two-core cable, minimum 22 AWG
Safety Devices: •Flame failure - Flame Rod  •Boiling protection  •Combustion fan rpm check  •Over current - glass fuse  •Remaining flame (OHS)  •Thermal fuse, •Automatic frost protection,
Clearances from Combustibles: •Top of heater - 12 inches, •Front (Panel) - 24 inches, •Front (Exhaust) - 24 inches, •Back of heater - 0 inches, •Bottom of heater - 12 inches, •Sides of heater - 6 inches,
Clearances from Non-combustibles: •Top of heater - 2 inches
 * 24 inches require for serviceability •Front (Panel) - 0 inches *, •Front (Exhaust) - 24 inches, •Back of heater - 0 inches, •Bottom of heater - 2 inches, •Sides of heater - 1/8 inch
Min. / Max. Gas Supply Pressure: Natural Gas: min 5” W.C. max 10.5” W.C., Propane Gas: min 8” W.C. max 13.5” W.C.
Manifold Gas Pressure (inches W.C.): Natural Gas: high fire 3.0” W.C. low fire 0.46” W.C., Propane Gas: high fire 3.5” W.C. low fire 0.50” W.C.
Front cover material: Powder coated galvanized steel

Dimensions

Rinnai RU98eN Outdoor Natural Gas Tankless Water Heater

Measurement in inches (millimeters)

Documents

Installation and Operation Manual
Detailed Specifications: RU98e
Hot Water Design Manual

Frequently Asked Question

Q1: Can this heater be used with 1/2" pipe?
A1: The normal connection for both gas and water supply is 3/4" MNPT. For gas, you can use other pipe sizes as long as you maintain between 8 and 13.5" of water column. For water, you can use other pipe sizes; but since that will affect your flow rate, your output water temperature will be different from the calculations shown with 3/4" MNPT.

Installation Help and Recommendations

We recommend that you have a professional tankless water heater installer review the above recommendations. Need an installer? Get 4 FREE Tankless Water Heater Installation Estimates Now. It's Quick and Easy!
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Rinnai® is a registered trademark of Rinnai Corporation. GadgetsGo is not associated with or sponsored by Rinnai Corporation.

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