TAKAGI 20L AU5 Continuous Flow LPG Hot Water Heater Gas, Replace Rinnai Rheem DUX

Frequently Asked Questions

Is the Takagi 20L LPG compatible with my existing hot water setup in Australia?

Yes, the Takagi 20L AU5 is fully compatible with Australian installations. It meets all Australian safety standards including Gas Approval Certificate and Watermark compliance. The connection sizes are 1/2" BSP (15mm) for cold/hot water pipes and 3/4" BSP (20mm) for gas inlet, which are standard in Australian plumbing. It can replace Rinnai, Rheem, or DUX units, and works as either a standalone heater or as a solar-compatible gas booster for existing solar systems.

What's the difference between the Takagi and more expensive brands like Rinnai or Rheem?

The Takagi 20L offers exceptional value without compromising on quality. It's manufactured by the original Japanese OEM (Original Equipment Manufacturer) that produces Eternity T Series, Kelvinator, and Thermastar units. You're getting the same engineering and reliability at a significantly lower price point. With a 6-star energy efficiency rating, 3-year replacement warranty, and 10-year heat exchanger warranty, the Takagi delivers premium performance at AUD $1099—making it one of the best value continuous flow gas heaters available in Australia.

How much hot water will this heater actually supply, and is it enough for a family?

The Takagi 20L supplies up to 26L/min of continuous hot water—meaning you'll have unlimited hot water as long as the heater is running. This capacity is ideal for families and handles multiple simultaneous uses (shower + kitchen tap, for example). The 20L rating refers to the flow rate at a temperature rise of 25°C. For most Australian households, this is more than sufficient for everyday needs without running out of hot water.

Can I adjust the temperature, and what's the preset setting?

The heater comes preset at 50°C and is user-adjustable from 40-50°C in 5°C increments using controls on the unit itself. If you need finer temperature control or want to set it up to 55°C, you can purchase an optional remote controller (sold separately). This flexibility means you can optimise comfort and energy efficiency for your household needs.

How do I order this, and what's your delivery and return policy?

Ordering the Takagi 20L LPG from Yarra Supply is straightforward—add it to your cart on yarrasupply.com.au. We offer Australia-wide free shipping on this product, so installation costs won't be inflated by delivery fees. If you're not completely satisfied, we provide a 30-day returns policy. The heater also comes with a 3-year replacement warranty and 10-year heat exchanger warranty, giving you complete peace of mind with your purchase.

Does this heater need special protection in cold climates, or can it handle Australian winters?

Yes, the Takagi 20L includes built-in anti-frost protection, making it suitable for frost-prone areas across Australia. This is particularly valuable if you're in Tasmania, the Victorian highlands, or other regions with freezing temperatures. The anti-frost function automatically protects the internal components during winter, ensuring your heater continues to operate reliably year-round.

What's included in the package, and what will I need for installation?

The package includes the Takagi 20L LPG Gas Water Heater, instruction manual, and mounting screws. For installation, you'll need a qualified gas fitter to connect the gas inlet (3/4" BSP) and plumber to connect the water pipes (1/2" BSP cold and hot water). The heater is compact (515mm H × 350mm W × 230mm D) and weighs only 17.2kg, making it relatively straightforward to install. We recommend having a licensed professional handle the setup to ensure safety and warranty compliance.