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Rinnai Tankless Water Heaters

119 Products
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Tankless and Tank Product Types

Whole House
Whole House
  • These are your replacement water heaters for a whole house, intended to replace an old tank style heater and offer a house the most efficient water heater method on the market today.
Point-Of-Use
Point Of Use
  • These smaller, nearly portable units are designed to be mounted under a small sink or small shower to provide hot water at the source.
Commercial
Commercial
  • These larger units are designed to provide continuous hot water for restaurants, hotels and large houses.
Water Heater Types
Water Heater Types
  • Mobile Home
  • Residential or Commercial
  • Thermal Storage-Alternative Energy Source
Fuel Type
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Fuel Type

Electric
Electric
  • Requires battery or plug in for power.
solar
Electric
  • Active Solar- External electrical or mechanical equipment (pump).
  • Passive Solar- No external energy source, it relies on solar properties.
Natural Gas vs. Propane
Gas and Propane
  • Natural- One of the cleaner burning fuels available. Most equipment using natural gas as a fuel source is typically maintenance free and is the most common gas type provided in-home.
  • Propane- Heats quickly and efficiently.
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Shop Products that are in stock and ready to ship. See product page for further shipping information.

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Shop Products that are discounted and currently 10%-30% off of manufacturer pricing. Most Products are discounted on a monthly basis and this category will be updated on the 1st of every month.

New Products
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Made In America
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Shop Products that have been made right here in the U.S.A. Each product has been made using materials solely manufactured in the United States.

Features
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Features

Tankless Water Heater features can make a big difference depending on the installation demands.

Outdoor Vs. Indoor Installation - choose where your unit will be installed.

Hardwired - units are intended for permanent installations where as Plug In units are typically installed under a sink for instant hot water or in for a temporary shower head water heater unit.

Energy Star - rated units have higher effeiciency standards and will operate on less energy.

Electronic Ignition - (No Pilot Light) When water is in high demand such as a business, using a gas tankless water heater is more cost effective but for residential point of use location, using an electric model with an electronic igintion is a great choice.

Plug In -This product will need to be plugged into an outlet. Perfect for smaller homes, cabins or vacation homes.

Water Connection
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Water Connection

This is the required water pipe size for the unit.
Most commonly used sizes are listed first.

Gas Size Required
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Gas Size Required

This is the gas piping size requirement to ensure optimum gas volume to the unit.

Duct Size
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Duct Size

This is the size of the exhaust ducting required for installation.

Minimum Flow Rate
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Minimum Flow Rate

Tankless Water Heaters have a minimum and maximum flow rates requirements.

The minimum flow rate number refers to the required flow rate (measured in gallons per minute) for the tankless water heater unit to operate effectively.

Maximum Flow Rate
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Total BTU's Slider

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Function
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Function

A Non-Condensing tankless water heater will push hot gases through its vent to the outside. They will then cool down outside the unit. These gases have temperatures around 300 degrees F and must be vented through non-corrosive venting materials that can withstand the heat. This special stainless steel category 3 venting can be expensive but necessary for this type of tankless water heater.

Condensing units contain the steam and exhaust in an attempt to reuse more of the heat produced to increase efficiency; also because of this the exhaust from these units are lower in temperature and can be vented with PVC schedule 40 piping. These units boast up to 90% more efficiency rating.

Forced Combustion (Direct Vent) is a controlled system that forces the combustion air supply from the room. Essentially increases the efficiency and is also known as a "dual Chamber" exhaust/Intake system. Always use stainless steel pipe because of the higher exhaust temperatures.

Series
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Series

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Length
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Length

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Width
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Width

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Height
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Height

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Product Application
Product Subtype
  • Rinnai WRIK-LF-F

    Plumbing Installation Kit Lead Free (Webstone-Female Iron Pipe)

    • Configuration: Valve System
    • Product Weight: 4
    • $110.00
  • Rinnai FSVL3604SP

    4” X 36” Vent Pipe for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $41.40
  • Rinnai 224077PP

    45 Degree Vent Pipe Elbow for Condensing Tankless Water Heaters - Set of 2

    • Vent Construction: Double Wall
    • $30.67
  • Rinnai 223182

    21” Universal Non-Condensing Plastic Horizontal Termination Kit

    • Configuration: Termination Kit
    • Product Weight: 4
    • Csa Approved: Yes
    • Length: 21
    • $73.60
  • Rinnai 224069

    6" Length Plastic Condensate Collector

    • Diameter: 6
    • Configuration: Condensate Trap
    • Product Weight: 1
    • Csa Approved: Yes
    • Length: 8.25
    • $45.00
  • Rinnai 189951

    Polymer Rubber Roof Flashing for 6/12 To 12/12 Pitch

    • Height: 20.4
    • Pipe Inside Diameter: 6
    • $54.43
  • Rinnai 224054

    2-1/4" to 12" Telescoping Vent Length for Non-Condensing Tankless Water Heaters

    • Configuration: Straight Pipe
    • Product Weight: 3
    • Csa Approved: Yes
    • Length: 13.1
    • $36.80
  • Rinnai 104000059

    Freeze Protection Solenoid Valve Kit For External Units In Cold Regions

    • Configuration: Accessory
    • Product Weight: 5
    • $293.33
  • Rinnai MC-91-2W

    Remote 98° to 140° Temperature Controller for the Rinnai Tankless Water Heaters

    • $65.27
  • Rinnai PCD07-SM

    Pipe Cover Enclosure For The RC98 / RC80

    • Configuration: Covers
    • Product Weight: 7.5
    • $93.87
  • Rinnai FSELB4504SP

    4" Diameter 45° Elbow for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $22.36
  • Rinnai 184127

    18" Above Roof Discharge Metal Termination

    • Pipe Inside Diameter: 4
    • $76.67
  • Rinnai 223187

    21” Non-Condensing Horizontal Termination Diverter Kit

    • Pipe Inside Diameter: 4
    • $62.56
  • Rinnai 224042

    Universal Bug Guard

    • Height: 6.5
    • $79.73
  • Rinnai 224255

    90 Degree Metal Elbow for LS Series Tankless Water Heater Venting

    • Material: Galvanized Steel
    • Configuration: Elbow
    • Product Weight: 2
    • Csa Approved: Yes
    • $36.19
  • Rinnai FSAAU4SP

    4" Plastic Universal Appliance Adapter for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $19.32
  • Rinnai FSELB9004SP

    4" Diameter 90° Elbow for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $26.77
  • Rinnai 223184

    21” Universal Non-Condensing Plastic Horizontal Termination

    • Configuration: Termination
    • Csa Approved: Yes
    • Length: 21
    • $42.32
  • Rinnai 224045

    Wall Thimble for Indoor Tankless Water Heaters

    • Height: 18.26
    • Pipe Inside Diameter: 5
    • $42.53
  • Rinnai 224270

    39” Metal Vent Pipe Extension for Non-Condensing Tankless Water Heaters

    • Material: Galvanized Steel
    • Configuration: Straight Pipe
    • Product Weight: 7.5
    • Csa Approved: Yes
    • Length: 39
    • $48.45
  • Rinnai 223183

    11-1/2” Universal Non-Condensing Plastic Horizontal Termination

    • Configuration: Termination
    • Csa Approved: Yes
    • Length: 11.5
    • $45.47
  • Rinnai FSUCD4SP

    4” Plastic Vertical Condensate Drain for 98 Series Non-Condensing Tankless Water Heaters

    • Diameter: 4
    • Configuration: Condensate Trap
    • Product Weight: 1.5
    • Csa Approved: Yes
    • Length: 6.4
    • $77.38
  • Rinnai MCC-91-2W

    Commercial Remote 98° to 160° Temperature Controller for the Rinnai Tankless Water Heaters

    • $88.00
  • Rinnai REU-EZC-1US

    EZConnect® Two Tankless Water Heater Connection Cable

    • Configuration: Manifold Controller
    • Product Weight: 1
    • $16.13
  • Rinnai RGB-25U-MSAL

    Universal Moisture Seal Recess Box for Luxury External Units

    • Configuration: Covers
    • Product Weight: 5
    • $249.33
  • Rinnai RV65iLP

    Indoor Liquid Propane 6.6 GPM Tankless Water Heater from the Value Series

    • $777.33
  • Rinnai 146141

    Roof Flashing Assembly For Flat Roof

    • Pipe Inside Diameter: 5.5
    • $24.53
  • Rinnai 184119

    Cold Climate 38" Above Roof Discharge Vertical Termination

    • Configuration: Termination
    • Product Weight: 8
    • Csa Approved: Yes
    • Length: 61.4
    • $88.93
  • Rinnai 224245

    6" Length Metal Condensate Collector

    • Material: Galvanized Steel
    • Configuration: Condensate Trap
    • Product Weight: 2
    • Csa Approved: Yes
    • $56.47
  • Rinnai FSVPK4

    Vertical Venting Kit with Variable Pitch Flashing 4” for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $124.20
  • Rinnai FSWMKBS4-M

    Horizontal Venting Kit W/Birdscreen Termination for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $203.63
  • Rinnai 224047PP

    Raised Horizontal Termination Kit (Snorkel) for Condensing Tankless Water Heaters

    • Vent Construction: Double Wall
    • $278.67
  • Rinnai 109000144

    Replacement Door for RC98i Tankless Water Heater

    • $69.57
  • Rinnai PCD07-SM-BP

    Bottom Plate For PCD07-SM Pipe Cover for Rinnai Tankless Water Heaters

    • Configuration: Covers
    • Material: Metal
    • Number Of Pieces: 1
    • Outdoor Approved: Yes
    • Product Weight: 2
    • $26.40
  • Rinnai RGB-32-W

    Recess Box For Models: R98LSe/R98LSeASME

    • Configuration: Covers
    • Asme Approved: Yes
    • $266.20
  • Rinnai 189952

    Polymer Rubber Roof Flashing for 8/12 To 16/12 Pitch

    • Height: 20.5
    • Pipe Inside Diameter: 7
    • $52.07
  • Rinnai 223188

    12” Universal Termination Metal Kit for LS Series

    • Pipe Inside Diameter: 4
    • $83.41
  • Rinnai 224046

    Raised (Snorkel) Horizontal Termination Kit

    • Height: 9.5
    • Pipe Inside Diameter: 5
    • $334.27
  • Rinnai 224250

    45 Degree Metal Vent Pipe Elbow - Set of 2

    • Material: Galvanized Steel
    • Configuration: Elbow
    • Product Weight: 3
    • Csa Approved: Yes
    • $52.13
  • Rinnai 224265

    19-1/2” Metal Vent Pipe Extension for Non-Condensing Tankless Water Heaters

    • Material: Galvanized Steel
    • Configuration: Straight Pipe
    • Product Weight: 4
    • Csa Approved: Yes
    • Length: 19.5
    • $42.32
  • Rinnai FSBS4SP

    4" Bird Screen Assembly for Horizontal Terminations on 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $27.13
  • Rinnai FSCL4

    4" Support Clamp for 98 Series Non-Condensing Tankless Water Heaters - Set of 6

    • Pipe Inside Diameter: 4
    • $108.53
  • Rinnai FSEDVWMT04U

    8" to 18" Adjustable Wall Thickness Horizontal Concentric Termination for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $299.92
  • Rinnai FSFS4SP

    4" Firestop/Flat Flashing for 98 Series Non-Condensing Tankless Water Heaters

    • Height: 15
    • Pipe Inside Diameter: 4
    • $28.60
  • Rinnai FSVL2404SP

    4” X 24” Vent Pipe for 98 Series Non-Condensing Tankless Water Heaters

    • Pipe Inside Diameter: 4
    • $32.19
  • Rinnai FSWT4SP

    4" External Termination Wall Thimble for 98 Series Non-Condensing Tankless Water Heaters

    • Duct Size: 4" Round
    • Configuration: Wall Thimble
    • Product Weight: 5
    • Length: 10
    • $86.53
  • Rinnai E75C

    75000 BTU Tankless Condensing Gas Boiler with 2.1 Gallons Per Minute

    • E Collection
    • Depth: 16
    • Direct Vent: Yes
    • Height: 26
    • Maximum Flow Rate: 2.1
    • Maximum Gas Input: 75000
    • Width: 20
    • $3,046.91
  • Rinnai RV75eLP

    Outdoor Liquid Propane 7.5 GPM Tankless Water Heater from the Value Series

    • $1,002.47

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