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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.

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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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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 RU98IN 9.8 GPM Indoor Condensing Natural Gas Tankless Water Heater
    • Free Shipping!
    • $1,350.00
  • Rinnai RL94iNG Internal Whole House Natural Gas Tankless Water Heater 9.4 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,065.00
  • Rinnai RL94iLP Internal Whole House Liquid Propane Tankless Water Heater 9.4 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,185.00
  • Rinnai V53eNG External Whole House Natural Gas Tankless Water Heater 5.3 Gallons Per Minute Less Isolation Valves
    • Free Shipping!
    • $569.95
  • Rinnai RV65iNG Indoor Natural Gas 6.6 GPM Tankless Water Heater from the Value Series
    • Free Shipping!
    • $799.00
  • Rinnai BC-100V-1 Bath Fill Tankless Water Heater Remote Controller with 98°-140°F Temperature Range
    • Configuration: Remote Thermostat
    • Height: 4
    • Depth: 1
    • Product Weight: 2
    • Width: 6
      $106.33
  • Rinnai RL75iNG Internal Whole House Natural Gas Tankless Water Heater 7.5 Gallons Per Minute with Isolation Valves
    from 1 customers
    • Free Shipping!
    • $899.00
  • Rinnai RU98EN Exterior 9.8 GPM Natural Gas Tankless Water Heater
    • Fuel Type: Natural Gas
    • Outdoor Installation: Yes
    • Free Shipping!
    • $1,250.00
  • Rinnai RU80iNG Ultra Collection Natural Gas, High Efficiency Condensing Internal Whole House Tankless Water Heater 8.0 Gallons Per Minute
    • Free Shipping!
    • $1,169.00
  • Rinnai RU98IP 9.8 GPM Indoor Condensing Propane Tankless Water Heater
    • Free Shipping!
    • $1,390.31
  • Rinnai R98LSiLP Internal High Volume Liquid Propane Tankless Water Heater 9.8 Gallons Per Minute
    • Free Shipping!
    • $1,229.00
  • Rinnai V53eLP External Whole House Liquid Propane Tankless Water Heater 5.3 Gallons Per Minute Less Isolation Valves
    • Free Shipping!
    • $619.00
  • Rinnai RV65eNG Outdoor Natural Gas 6.6 GPM Tankless Water Heater from the Value Series
    • Free Shipping!
    • $769.00
  • Rinnai 169044 Pipe Clamp for Indoor Water Heater System
    from 2 customers
    • Configuration: Pipe Clamp
    • Product Weight: 1
    • Csa Approved: Yes
      $4.29
  • Rinnai RL94eNG External Whole House Natural Gas Tankless Water Heater 9.4 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,045.00
  • Rinnai 710342 White Wall Plate
    from 1 customers
    • Diameter: 8.8125
    • Configuration: Wall Plate
    • Depth: 1.5
    • Product Weight: 1
    • Csa Approved: Yes
      $4.29
  • Rinnai RL94eLP External Whole House Liquid Propane Tankless Water Heater 9.4 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,055.00
  • Rinnai R98LSeNG External High Volume Natural Gas Tankless Water Heater 9.8 Gallons Per Minute
    • Free Shipping!
    • $1,125.00
  • Rinnai RL75iLP Internal Whole House Liquid Propane Tankless Water Heater 7.5 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,002.00
  • Rinnai RC80HPeLP High Efficiency Condensing External Whole House Liquid Propane Tankless Water Heater 8.0 Gallons Per Minute Less Valves
      $952.00
  • Rinnai RL75eLP External Whole House Liquid Propane Tankless Water Heater 7.5 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $895.00
  • Rinnai RC98eNG High Efficiency Condensing External Whole House Natural Gas Tankless Water Heater 9.8 Gallons Per Minute
      $1,408.85
  • Rinnai MC-100V-1 Deluxe Tankless Water Heater Remote Controller with Clock And Call Features with 98°-140°F Temperature Range
    • Configuration: Remote Thermostat
    • Height: 4
    • Depth: 1
    • Product Weight: 2
    • Width: 2
      $93.87
  • Rinnai RV75eNG Outdoor Natural Gas 7.5 GPM Tankless Water Heater from the Value Series
    • Free Shipping!
    • $949.00
  • Rinnai RV75iLP Indoor Liquid Propane 7.5 GPM Tankless Water Heater from the Value Series
    from 1 customers
    • Free Shipping!
    • $1,002.47
  • Rinnai RV75iNG Indoor Natural Gas 7.5 Tankless Water Heater from the Value Series
    • Free Shipping!
    • $1,049.00
  • Rinnai RL75eNG External Whole House Natural Gas Tankless Water Heater 7.5 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,002.00
  • Rinnai PCD03-SM2 Pipe Cover Enclosure for External Luxury Series
    from 2 customers
    • Configuration: Covers
    • Product Weight: 11.5
    • Csa Approved: Yes
      $93.87
  • Rinnai RV65eLP Outdoor Liquid Propane 6.6 GPM Tankless Water Heater from the Value Series
    • Free Shipping!
    • $722.33
  • Rinnai RU80iLP High Efficiency Condensing Internal Whole House Liquid Propane Tankless Water Heater 8.0 Gallons Per Minute
    • Free Shipping!
    • $1,195.00
  • Rinnai R98LSi-ASMENG ASME Certified Internal Whole House Natural Gas Tankless Water Heater 7.5 Gallons Per Minute with Isolation Valves
    • Free Shipping!
    • $1,088.00
  • Rinnai RU98EP Commercial Liquid Propane Tankless Water Heater
      $1,352.73
  • Rinnai 224080PP 39” Vent Pipe Extension for Condensing Tankless Water Heaters
    from 1 customers
    • Length: 39
    • Vent Construction: Double Wall
      $30.00
  • Rinnai 224053 39” Plastic Vent Pipe Extension for Non-Condensing Tankless Water Heaters
    from 1 customers
    • Configuration: Straight Pipe
    • Product Weight: 5
    • Csa Approved: Yes
    • Length: 39
      $39.25
  • Rinnai 223177PP 21” Horizontal Termination Kit for Condensing Tankless Water Heaters
    from 1 customers
    • Pipe Inside Diameter: 4
    • Vent Construction: Double Wall
      $57.65
  • Rinnai 184118-S 18" Above Roof Discharge Plastic Termination
    • Pipe Inside Diameter: 4
      $63.79
  • Rinnai 223181 11-1/2” Universal Non-Condensing Plastic Horizontal Termination Kit
    from 1 customers
    • Configuration: Termination Kit
    • Product Weight: 3.5
    • Csa Approved: Yes
    • Length: 11.5
      $69.92
  • Rinnai 189950 Polymer Rubber Roof Flashing for 1/12 To 6/12 Pitch
    • Height: 20.4
    • Pipe Inside Diameter: 6
      $42.93
  • Rinnai 184162PP 38" Roof Discharge Termination
    • Pipe Inside Diameter: 4
    • Vent Construction: Double Wall
      $55.20
  • Rinnai 222053 Condensate Trap II
    • Height: 7.8
      $29.44
  • Rinnai WRIK-LF-F Plumbing Installation Kit Lead Free (Webstone-Female Iron Pipe)
    from 1 customers
    • Configuration: Valve System
    • Product Weight: 4
      $110.00
  • Rinnai 223176PP 12" Horizontal Termination Kit for Condensing Tankless Water Heaters
    from 2 customers
    • Vent Construction: Double Wall
      $55.20
  • Rinnai 224050 45 Degree Plastic Vent Pipe Elbow - Set of 2
    from 1 customers
    • Configuration: Elbow
    • Csa Approved: Yes
    • Product Weight: 2
      $43.55
  • Rinnai 223187 21” Non-Condensing Horizontal Termination Diverter Kit
    from 2 customers
    • Pipe Inside Diameter: 4
      $62.56
  • Rinnai 224079PP 19-1/2” Vent Pipe Extension for Condensing Tankless Water Heaters
    from 4 customers
    • Length: 19.5
    • Vent Construction: Double Wall
      $27.99
  • Rinnai 224078PP 90 Degree Vent Pipe Elbow for Condensing Tankless Water Heaters
    from 1 customers
    • Vent Construction: Double Wall
      $22.08
  • Rinnai 224087PP 10” Vent Pipe Extension for Condensing Tankless Water Heaters
    • Length: 10
    • Vent Construction: Double Wall
      $19.63
  • Rinnai 223182 21” Universal Non-Condensing Plastic Horizontal Termination Kit
    • Configuration: Termination Kit
    • Product Weight: 4
    • Csa Approved: Yes
    • Length: 21
      $73.60

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