• Thermann R-Series 26L Continuous Flow Hot Water Unit
  • Thermann R-Series 32L Continuous Flow Hot Water Unit
  • Thermann R-Series 17L Continuous Flow Hot Water Unit
  • Thermann R-Series 21L Continuous Flow Hot Water Unit

  • R-Series Continuous Flow

    Gas · Continuous Flow Hot Water Systems

    Key Specifications

    Number of outlets
    2-4
    Fuel type
    Gas
    Installation
    External
    Nominal Gas Consumption (MJ/h) 17L
    126 (NG)
    127 (LPG)
    Nominal Gas Consumption (MJ/h) 21L
    159
    Nominal Gas Consumption (MJ/h) 26L
    195
    Nominal Gas Consumption (MJ/h) 32L
    250
    Commercial

    Not designed for commercial use

    Find units for business

    • Warranty Information
      Single Family Dwellings

      12 Year Heat Exchanger
      3 Year Parts and Labour


      Single Family Dwellings with a recirculation and on a timer (32L only)

      5 Year Heat Exchanger
      3 Year Parts and Labour


      All other applications

      1 Year Heat Exchanger
      1 Year Parts and Labour

    • Considerations
      Pros

      Save space with a small footprint mounted on your wall

      They heat water as you need it, so you will never run out of hot water

      Controllers can be installed to accurately deliver the required water temperature

      Cons

      You may need to upgrade your gas line which can add to your upfront costs

      Takes longer to deliver hot water than a storage heater

    Downloads

    Thermann Residential Hot Water Systems Brochure
    Thermann 32R Owners Guide
    Thermann 17R, 21R and 26R Owners Guide

    Always use a licensed plumber when installing a hot water system.

    The R-Series range now includes the 17R, 21R, and 26R 50°C and 60°C models in addition to the existing large capacity 32R model in 50°C and 60°C options. The range provides sizing options for applications big, small, and everything in between.

    The 26R model claims the title as the most efficient in its class*. It not only features an equivalent energy efficiency rating of 6.4 stars, but its low minimum flow rate makes it the perfect choice to combine with water efficient 6-star tapware.

    All models are available in both natural gas and LPG, and come backed by a 12 year warranty on the heat exchanger, and 3 years parts and labour.

    * The Thermann 26R has the lowest annual energy consumption of any non-condensing 26L/min continuous flow model in the Australian market

    How it works

    1. A hot water tap is turned on

    2. Water enters the heater

    3. The water flow sensor detects the water flow

    4. The computer automatically ignites the burner

    5. Water circulates through the heat exchanger

    6. The heat exchanger heats the water to the designated temperature

    7. When the tap is turned off, the unit shuts down

    Continuous Flow Systems GIF
  • R-series Line Drawing Dimensions
    Features 17L 21L 26L 32L
    No. of Outlets 2 2-3 3 4
    Energy Rating (stars) 6.0 6.1 6.4 5.8
    Capacity at 25⁰C rise (L/min) 17 21 26 32
    Capacity at 40⁰C rise (L/min) 11 13 16 20
    Gas Type Available NG, LPG NG, LPG NG, LPG NG, LPG
    Swipe
    Measurements 17L 21L 26L 32L
    Nominal hourly gas consumption (MJ/h) 126 (NG)
    127 (LPG)     		159 195 250
    Test point pressure NG (kPa) 0.61 0.62 0.69 0.25 (Min)
    0.70 (Max)
    Test point pressure LPG (kPa) 0.71 0.77 0.87 0.49 (Min)
    1.51 (Max)
    Minimum water pressure (kPa) 200 200 200 200
    Maximum water pressure (kPa) 1000 1000 1000 1000
    Minimum gas inlet pressure NG (kPa) 1.13 1.13 1.13 1.13
    Minimum gas inlet pressure LPG (kPa) 2.75 2.75 2.75 2.75
    Maximum gas inlet pressure NG (kPa) 3.0 3.0 3.0 3.0
    Maximum gas inlet pressure LPG (kPa) 3.5 3.5 3.5 3.5
    Minimum flow rate ignition (L/min) 2.5 2.5 1.5 2.0
    Input voltage single phase 50HZ (v) 230 - 240 230 - 240 230 - 240 230 - 240
    Maximum output current (A) 0.44 0.44 0.54 0.6
    Inlet gas connection male thread R3/4" (20mm) R3/4" (20mm) R3/4" (20mm) R3/4" (20mm)
    Cold water connection male thread R3/4" (20mm) R3/4" (20mm) R3/4" (20mm) R3/4" (20mm)
    Relief valve pressure setting (kPa) 1620 1620 1620 1620
    Weight dry (kg) 14 15 16 30
    Dimensions (DxWxH mm) 170x350x520 170x350x520 170x350x520 240x464x615
    Swipe
  • Product Name Number of Outlets Delivery Capacity (At 25 Deg C Rise) Gas Type Temperature Setting Gas Consumption
    Thermann 17R
    2
    2
    2
    2
    17L/min
    17L/min
    17L/min
    17L/min
    Natural
    Natural
    LPG
    LPG
    50 deg C
    60 deg C
    50 deg C
    60 deg C
    126 MJ/h
    127 MJ/h
    126 MJ/h
    127 MJ/h
    Thermann 21R
    2-3
    2-3
    2-3
    2-3
    21L/min
    21L/min
    21L/min
    21L/min
    Natural
    Natural
    LPG
    LPG
    50 deg C
    60 deg C
    50 deg C
    60 deg C
    159 MJ/h
    159 MJ/h
    159 MJ/h
    159 MJ/h
    Thermann 26R
    3
    3
    3
    3
    26L/min
    26L/min
    26L/min
    26L/min
    Natural
    Natural
    LPG
    LPG
    50 deg C
    60 deg C
    50 deg C
    60 deg C
    195 MJ/h
    195 MJ/h
    195 MJ/h
    195 MJ/h
    Thermann 32R
    4
    4
    4
    4
    32L/min
    32L/min
    32L/min
    32L/min
    Natural
    Natural
    LPG
    LPG
    50 deg C
    60 deg C
    50 deg C
    60 deg C
    250 MJ/h
    250 MJ/h
    250 MJ/h
    250 MJ/h
    Swipe

  • Thermann R-Series
    Main Controller

    Thermann R-Series Main Controller
    From
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    Thermann R-Series Bathroom 1 Controller

    Thermann R-Series Bathroom 1 Controller
    From
    View product

    Thermann R-Series Bathroom 2 Controller

    Thermann R-Series Bathroom 2 Controller
    From
    View product

    Thermann Comm Controller W/15m Cable

    Thermann 32R Commercial Controller W/15m Cable
    From
    View product

    Thermann 32R
    Half Recess Box

    Thermann 32R Half Recess Box
    From
    View product

    Thermann 17R 21R 26R
    Half Recess Box

    Thermann 17R 21R 26R Half Recess Box
    From
    View product

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