(800)865-5931 Mon-Tue 7am-7pm, Wed-Fri 7:30am-6:30pm, Sat 9am-2pm CT
EST. 2002
Home Air Products™
My Location: Ashburn, VA [Change]
Free Shipping See Details
No Sales Tax See Details
Enter your zip for personalized product and service recommendations.
Actual product may vary from photos.
The Rinnai RV53iN (Item No. 607890) has been discontinued.
Please call us for a suitable alternate product.

(800) 865-5931

Mon-Tue 7am-7pm, Wed-Fri 7:30am-6:30pm, Sat 9am-2pm CT

This Rinnai RV53iN (Item No. 607890) has some damage incurred during shipping. For detailed photos please click 'See Additional Images' above. This Rinnai RV53iN (Item No. 607890) meets the full manufacturer's specifications, comes with the full manufacturer's warranty, and includes Alpine's premium guarantee.

For product specs and photographs of product in its original condition, click here.

Rinnai's V53i interior-mount tankless water heater efficiently delivers up to 5.3 gallons per minute (GPM) of hot water, making it perfect for your one- or two-bathroom home. This easy-to-install, ultra-compact unit lets you enjoy all the benefits of Rinnai tankless water heating. You'll experience clean, reliable hot water at a consistent pre-set temperature, while saving energy and precious floor space in your home.

Standard Features

  • Available in interior (RV53i) or exterior (RV53e) models
  • RV53i Models are now certified for installation in manufactured (mobile) homes
  • Pre-set at 120ºF (adjustable to 140ºF)
  • Significant space savings over tank-style water heaters 
  • Included isolation valves to insure professional and serviceable installations 
  • Energy Factor of .82 for both gas types
  • Compatible with full line of Rinnai digital controllers
  • Meets California and Texas NOx emission rules
  • ENERGY STAR® qualified
  • 10-year heat exchanger / 5-year parts 


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
150000 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
15000 BTU
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
0.6 - 5.3 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
84 %
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
140 - 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
51 lbs
Meets CSA Standards

Canadian Standards Association

Meets CSA Standards
13 22/25 Inches
8 4/5 Inches
23 3/5 Inches
Heat Exchanger Warranty
10 Years
Parts Warranty
5 Year
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

$61.99 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)

$43.99 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:
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")

$319.99 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:
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:
MC-91-1S Front
Rinnai MC-91-2S

Standard Control for Rinnai Tankless Water Heaters - Silver

$61.99 Qty:
MC-91-1W Front
Rinnai MC-91-2W

Standard Control for Rinnai Tankless Water Heaters - White

$61.99 Qty:
Honeywell AMX3-T
Honeywell AMX300T

Thermostatic Mixing Valve Kit with 8" Flex Connector

$99.99 Qty:
Get expert assistance from our team
Call our product specialists at 800-865-5931
Mon-Tue 7am-7pm, Wed-Fri 7:30am-6:30pm, Sat 9am-2pm CT
Please enter a message
Please use a valid email
Phone (optional)
Please use a valid phone number
Name (optional)
Please use a valid phone number