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Rinnai V75iN

Interior, 7.5 GPM, Natural Gas, 82% Efficiency Tankless Water Heater

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Rinnai Value Line tankless water heaters do not come with an installation kit. The WRIK-LF-F installation kit is available on the Accessories page. 

Available in three models, suitable for small- to mid-sized homes, Rinnai’s new Value 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. 

Delivering an Energy Factor (EF) of .82, Rinnai’s tankless condensing units are ideal for residential and commercial applications and can be banked for even greater capacity.

Standard Features

  • Energy Factor (EF) of .82
  • Significant space savings over tank-style water heaters
  • Energy Star® qualified
  • Temperature range with standard MC-91-2US controller (included): 98°F to 120°F
  • Certified for installation in manufactured (mobile) homes
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Leak detection shuts off water to unit to limit property damage
  • Temperature lock prevents accidental or unauthorized changes to water temperature
  • Satisfies South Coast Air Quality Management District (SCAQMD) with requirements of less than 14 ng/J for ultra-low NOx emissions
  • Residential Warranty: 10-year heat exchanger / 5-year parts / 1-year labor


Installation Placement

Equipment can be placed inside or outside of the home.

Installation Placement
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
180000 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
10300 BTU
Gallons Per Minute
7.5 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 - 7.5 GPM
Thermal Efficiency

The percentage of the heat generated by combustion that goes into heating. The remaining percentage goes out the flue. The higher the efficiency rating, the lower the cost of operation.

Thermal Efficiency
82 %
Power Source
120 VAC (60Hz)
Fuel Type
Natural Gas
Ignition Type
Direct Ignition
Connection Type
NPT (Threaded)
Energy Factor
Temperature Range

The minimum and maximum temperatures on the thermostat.

Temperature Range
120 - 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
Piping Connections - Water
3/4 Inch(es)
Exhaust Venting
Product Weight
45.6 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
14 Inches
9 Inches
23 Inches
Heat Exchanger Warranty
10 Years
Parts Warranty
5 Years
Labor Warranty
1 Years

Rinnai 224049
Rinnai 224049

Metal Pass Through Plate

$24.99 Qty:
Roof Flashing
Rinnai / Ubbink 146141

Roof Flash Assembly - Flat Roof

$22.99 Qty:
169044 Front
Rinnai / Ubbink 169044

Concentric Venting Pipe Clamp

$4.99 Qty:
Roof Discharge 1
Rinnai / Ubbink 184118-S

Roof Discharge Terminal, 18" Above Roof, 21" Length Below Roof

$59.99 Qty:
Roof Discharge 1
Rinnai / Ubbink 184119

Roof Discharge Terminal, 38" Above Roof for Cold Climate

$87.99 Qty:
50171961 Front
Rinnai / Ubbink 189950

Roof Flashing Assembly - 1/12 to 6/12 Pitch (5-25 Degrees)

$40.99 Qty:
50171961 Front
Rinnai / Ubbink 189951

Roof Flashing Assembly - 6/12 to 12/12 Pitch (25-45 Degrees)

$40.99 Qty:
50171961 Front
Rinnai / Ubbink 189952

Roof Flashing Assembly - 8/12 to 16/12 Pitch (35-55 Degrees)

$42.99 Qty:
Condensate Trap Kit 1
Rinnai / Ubbink 222053 / 222050

Condensate Trap

$31.99 Qty:
Rinnai / Ubbink 223181

11.5" Universal Non-Condensing Termination Kit

$71.99 Qty:
Rinnai / Ubbink 223182

21" Universal Non-Condensing Termination Kit

$71.99 Qty:
Bug Guard Kit
Rinnai / Ubbink 224042

Bug Guard For Rinnai Water Heaters (except the R98i series)

$74.99 Qty:
224045 Expanded
Rinnai / Ubbink 224045

Thimble (For New Construction)

$35.99 Qty:
Rinnai Snorkel 4
Rinnai / Ubbink 224046

Raised Horizontal Termination Kit ("Snorkel")

$313.99 Qty:
224050 Contents
Rinnai / Ubbink 224050

(2-Pack) 45° Vent Pipe Elbows

$40.99 Qty:
Rinnai 224051
Rinnai / Ubbink 224051

10" Vent Pipe Extension

$23.99 Qty:
224052 Front
Rinnai / Ubbink 224052

19.5" Vent Pipe Extension

$36.99 Qty:
Rinnai 224053b
Rinnai / Ubbink 224053

39" Vent Pipe Extension

$40.99 Qty:
224063 Side
Rinnai / Ubbink 224063

90° Vent Pipe Elbow

$29.99 Qty:
224064 Inside
Rinnai / Ubbink 224064

Vertical Discharge Adapter, 4" Length

$26.99 Qty:
224069 Front
Rinnai / Ubbink 224069

Condensate Collector, 6" Length

$35.99 Qty:
710342 Front
Rinnai / Ubbink 710342

Rubber Wall Plate - White

$4.99 Qty:
710602 Front
Rinnai / Ubbink 710602

Rubber Wall Plate - Black

$4.99 Qty:
Rinnai BC-100V-1S
Rinnai BC-100V-1S

Deluxe Bathroom Control for Rinnai Tankless Water Heaters - Silver

$135.99 Qty:
BC-100V-1W Front
Rinnai BC-100V-1W

Deluxe Bathroom Control for Rinnai Tankless Water Heaters - White

$99.99 Qty:
MC-100V-1S Front
Rinnai MC-100V-1S

Deluxe Control for Rinnai Tankless Water Heaters, Silver

$88.99 Qty:
Rinnai MC-100V-1W Front
Rinnai MC-100V-1W

Deluxe Control for Rinnai Tankless Water Heaters - White

$88.99 Qty:
Ez-Flo Water Heater Connector
Ez-Flo 437718

18" Long, 3/4" Inner Diameter Flexible Water Heater Connector - For Installations Without Service Valves

$23.99 Qty:
Ez-Flo Water Heater Connector
Ez-Flo 437724

24" Long, 3/4" Inner Diameter Flexible Water Heater Connector - For Installations Without Service Valves

$19.99 Qty:
Honeywell AMX3-T
Honeywell AMX300T

Thermostatic Mixing Valve Kit with 8" Flex Connector

$130.99 Qty:
Rinnai WRIK-LF-F
Rinnai MIVK-T-LW

Lead Free Plumbing Installation Kit

$109.99 Qty:

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