Rinnai Heat Pump Hot Water
Rinnai is one of Australia's most trusted hot water brands, known for decades of gas water heater dominance. Their heat pump range includes the AR Series designed and built in Keysborough, VIC - qualifying for the higher Victorian rebate tier. The widest installer network in Australia means service and parts are readily available. The AR 340L is the largest integrated residential heat pump in Australia.
Rinnai hot water heat pump price (2026)
Out-of-pocket assumes federal STCs + a typical state-level top-up. Victorian households can stack up to $2,700 in rebates ahead of the 2027 gas ban; NSW, SA and ACT have their own top-ups. Cheapest model: Rinnai E-Series 250L from $3,350. Largest: Rinnai AR 340L up to $4,800. Lowest running cost across the range: ~$300/yr.
Available Models
Rinnai E-Series 250L
Rinnai GR 280L
Rinnai AR 340L
Pros
- Australia's most trusted hot water brand
- AR Series is Australian-made (higher VIC rebate)
- Widest installer network in AU
- 340L is largest integrated residential heat pump in AU
- Smooth transition path from Rinnai gas
Cons
- Not the most efficient COP vs CO2 brands
- Only AR Series is Australian-made
- E-Series has shorter warranty
- Standard R134a refrigerant
Best for
Homeowners wanting a trusted household name with the best installer availability and AU-made option
Check Rinnai rebates in your state
Federal STCs plus state rebates can knock up to $2,700 off the installed price.
Rinnai hot water heat pump FAQ
How much is a Rinnai hot water heat pump installed in 2026?
A Rinnai hot water heat pump costs $3,350 - $4,800 fully installed in Australia before rebates. The cheapest model (Rinnai E-Series 250L, 250L) starts at $3,350; the largest (Rinnai AR 340L, 340L) tops out around $4,800. After stacking federal STCs (worth $780-$940 depending on the model and your climate zone) and state-based rebates, most households pay $1,500-$3,500 out of pocket.
Is Rinnai a good heat pump brand?
Rinnai is one of Australia's most trusted hot water brands, known for decades of gas water heater dominance. Their heat pump range includes the AR Series designed and built in Keysborough, VIC - qualifying for the higher Victorian rebate tier. The widest installer network in Australia means service and parts are readily available. The AR 340L is the largest integrated residential heat pump in Australia. Rinnai is best suited to homeowners wanting a trusted household name with the best installer availability and au-made option.
What rebates can I claim on a Rinnai heat pump?
Every Rinnai model attracts federal Small-scale Technology Certificates (STCs) worth $780-$940 at point of sale. On top of STCs, Victorian households can stack the Solar Victoria Hot Water Rebate ($1,000-$1,400) and Victorian Energy Upgrades discount ($500-$2,000) to reach up to $2,700 in rebates. NSW (PDRS), SA (REPS), and ACT (Sustainable Household Scheme) have their own state-level top-ups. Your installer applies the discounts at quote time so you do not chase paperwork.
What is the warranty on a Rinnai heat pump?
Rinnai backs its tanks with a 7-year warranty and the compressor with 5 years. Workmanship cover for the install itself comes from your installer separately and should be at least 12 months. Warranty claims require the system to have been installed by a licensed plumber and serviced according to the manual.
How efficient is a Rinnai heat pump?
The Rinnai E-Series 250L runs at COP 3.6 (every 1 kWh of electricity input produces 3.6 kWh of heat output). Annual running cost is around $350 for a 2-4 person household, compared to roughly $700/year for gas storage and $900/year for old-school electric resistive storage.
How long does a Rinnai heat pump last?
Modern hot water heat pumps last 12-15 years on average in Australian conditions. Tank life depends on water hardness (sacrificial anode replacement every 5 years extends life). Compressor life is the limiting factor and typically matches or exceeds the warranty period when the unit is correctly sized and serviced.
Rinnai vs other brands: which should I pick?
Rinnai sits at the budget end of the Australian market. It offers the widest installer network in Australia, so service and parts are easy to source. See the side-by-side comparisons below for direct head-to-head specs.
Compare with other brands
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