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Rinnai RU80eN

Exterior, 8.0 GPM, Natural Gas, Tankless Water Heater

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  • Liftgate Delivery $25

 Available in four models, suitable for mid- to large-sized homes, Rinnai’s new Ultra Series Condensing Tankless Water Heaters offer all the same benefits builders and homeowners have come to expect from Rinnai. Never run out of hot water again, and enjoy the space savings, convenience, ease of installation and peace of mind for which Rinnai is famous. 

 Rinnai’s unique condensing design incorporates two innovative heat exchangers to achieve optimum heating value from every cubic foot of natural gas or propane. The stainless steel system recaptures residual heat from flue gases to pre-heat incoming ground water, which then circulates to the primary copper heat exchanger.

Delivering an Energy Factor (EF) up to .96, Rinnai’s tankless condensing units are ideal for residential and commercial applications and can be banked for even greater capacity

RU Series interior-mount units can be placed in any room, vent directly to the outside and have an integrated condensate collector.  All RU units contain a newly designed, commercial-grade dual heat exchanger for optimum durability.  Homeowners get the reliability of commercial-grade construction and an industry-leading 12-year limited warranty.

Standard Features

  • Energy Factor (EF) up to .96
  • Condensing technology for high efficiency and energy savings
  • Enough capacity to supply continuous hot water simultaneously to multiple plumbing demands
  • Significant space savings over tank-style water heaters
  • Long-lasting design and reduced risk of flooding
  • Included isolation valves to insure professional and serviceable installations
  • Applicable for both residential and commercial applications due to commercial-grade heat exchangers
  • Temperature range with standard MC-91 controller (included): 98°F to 140°F
  • Temperature range with MCC-91 commercial controller: 98°F to185°F
  • Pair up with an air handler for efficient home heating
  • Meets California and Texas NOx emission rules
  • ENERGY STAR® qualified
  • Residential Warranty: 12-year heat exchanger / 5-year parts & labor
  • Commercial Warranty: 5-year heat exchanger & parts / 2-year labor
     

Installation Placement

Equipment can be placed inside or outside of the home.

Installation Placement
Exterior
Maximum Input BTU

The maximum amount of heat that the unit can produce. The amount delivered into the space will be the input minus the efficiency loss also know as the output. For example a 100000 btu furnace at 80% efficiency will give you 80000 out btus of heat. The same size furnace at 95% will give you 95000 btus of heat.

Maximum Input BTU
152,000 BTU
Minimum Input BTU

The amount of heat produced by the unit at the lower stage of heat. Having two stages of heat will allow for more consistent operation and greater comfort in the home.

Minimum Input BTU
15,200 BTU
Gallons Per Minute

Gallons Per Minute
8.0 GPM
Hot Water Capacity Range

The gallons per minute of hot water that the unit is rated to provide. The actual amount of hot water generated can vary depending on your ground water temperature.

Hot Water Capacity Range
0.4 - 8.0 GPM
Power Source
120 VAC (60Hz)
Fuel Type
Natural Gas
Ignition Type
Direct Ignition
Connection Type
NPT (Threaded)
Energy Factor
0.96
Temperature Range

The minimum and maximum temperatures on the thermostat.

Temperature Range
185 - 98 °F
ENERGY STAR® Qualified

Products earn the ENERGY STAR label by meeting the energy efficiency requirements set forth in ENERGY STAR specifications. The EPA establishes these specifications based on the following set of principles:

  • Product categories must contribute significant energy savings nationwide.
  • Qualified products must deliver the features and performance demanded by consumers, in addition to increased energy efficiency.
  • If the qualified product costs more than a conventional, less-efficient counterpart, purchasers will recover their investment in increased energy efficiency through utility bill savings, within a reasonable period of time.
  • Energy efficiency can be achieved through broadly available, non-proprietary technologies offered by multiple manufacturers.
  • Product energy consumption and performance can be measured and verified with testing.
  • Labeling would effectively differentiate products and be visible for purchasers.

ENERGY STAR® Qualified
Yes
Piping Connections - Water
3/4 Inch(es)
Exhaust Venting
Direct-Vent
Product Weight
70.5 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
Yes
Width
18 3/10 Inches
Depth
10 Inches
Height
26 Inches
Heat Exchanger Warranty
12 Years
Parts Warranty
5 Years
Labor Warranty
1 Years

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.