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Aquamax 390 Gas Stainless Hot Water - 10 Yr Warranty

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Quick Overview

The Natural Gas Hot Water Heater with a 155 Litre Stainlees Steel tank. The AquaMAX 390 patented inbuilt mixing valve adds a controlled mix of cold water and gives you 390 litres first hour delivery with a five star energy rating. You can also install optional twin temperature for warmer water in the kitchen and laundry.

Benefits & Features

  • In-built mixing valve
  • 390 Litre first hour capacity
  • 5 Star Energy Rating
  • 10 year cylinder warranty
  • External installation

Star Rating
Aquamax 390 Gas Stainless Hot Water - 10 Yr Warranty

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While the tank holds 155 litres, the stainless steel cylinder can store water at a much higher temperature than a vitreous enamel tank. The mixing valve (Control A) adds a controlled mix of cold water at the unit's hot water outlet, giving 205 litres or more hot water delivery in the initial draw, at 60ºC or at the setting you choose when Control B is set at 4.5 or higher.

With 185 litres recovery per hour after that, the 390 is the largest volume domestic storage water heater available.

Twin Temperature Delivery

Available as an installation option, your plumber can install twin temperature delivery. You can enjoy the convenience of 65ºC hot water in the kitchen and laundry when you need it, while taking comfort in the knowledge that it is safer for kids with bathroom hot water taps at 50ºC or lower.


  390 SS (with mix)
Cat. No. G390SS
Gas type Natural
Tank Capacity 155 Litres
Nominal gas consumption 40 MJ/Hr
AGA Star Rating Index 5 Stars
Recovery rate at 45°C rise 185 Litres/Hr1
Installation type External only
Pressure & Temperature Relief Valve setting 1400 kPa/99°C
Max. water supply pressure 1100 kPa
Tank material stainless steel
Water inlet connection Rp ¾" (20mm) Female
Water outlet connection Rp ¾" (20mm) Female
Gas connection ½" flared compression
Warranty (Cylinder) 10 years
WaterMark Licence No. WMKA00200
Overall height 1625mm
Width (approx.) 520mm
Depth (approx.) 610mm
AGA Approval No. 6114
Weight empty (approx.) 65 kg
Number of people 3-6

Aquamax Gas Hot Water Brochure

Additional Information

Energy Star Rating 5


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Aquamax 390 Gas Stainless Hot Water - 10 Yr Warranty 0 out of 1 5 based on ratings. user reviews.