Thermann G-Series 20L 50 degree N/G Continous Flow Hot Water System

The Thermann 20 6* Pre Set system is a great choice for a growing family. These systems are more than capable of supplying water to a home with a pair of bathrooms and a bath-loving Otterhound, and their compact nature makes it easy to store them outside of your home.

With a 12-year warranty on the heat exchanger, you'll be able to keep this water heater for years to come.

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Unit price (RRP) $ 1,047.53
Labour $??.??
Supplies $??.??
Total $??.??
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Product Specifications

Size and Dimensions

Weight (Device Only) 14 kg
Width 350 mm
Depth 520 mm
Height 200 mm


Japanese-designed and manufactured
Available in 16L, 20L & 26L models, all in NG/LPG & 50 Degree C/60 Degree C models
Environmentally conscious (lead free internals & eco-packaging)
Includes a 12 Year Heat Exchanger and 3 Year Parts & Labour warranty
Achieves up to a 6.8* star equivalent energy rating

General Information

No. Of Outlets 1 to 2
Gas Type Natural Gas

Technical Information

Delivery Capacity (at 25 deg C rise) 20 ltr/min
Delivery Capacity (at 40 deg C rise) 13.2 ltr/min
Continuous Flow Unit - Gas Consumption 158 MJ/h
Gas Inlet Connection male thread R3/4" (20mm)
Cold Water Connection male thread R3/4" (20mm)
Hot Water Connection male thread R3/4" (20mm)

Pressure Information

Continuous Flow Unit - Maximum Water Pressure 1300 kPa
Continuous Flow Unit - Minimum Water Pressure 70 kPa
Maximum Inlet Pressure 5 kPa
Minimum Inlet Pressure 1.13 kPa
Relief Valve Setting 1600 kPa
Testing Pressure 0.81 kPa

Power Information

Energy Rating 6.8
Input Voltage 240 V
Output Current 0.38 (Maximum)

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