At a Glance: Sanden Eco Plus scores 4.25 out of 5
Scoring is based on our heat pump scorecard, which is consistently applied to each brand and heat pump on the Australian market.
$$$$$ Price: The Sanden Eco Plus 250L typically sits around $5,900 to $6,800 supply only in the Australian market, depending on dealer, inclusions and whether the Wi-Fi controller is bundled. That keeps it firmly in the highest cost tier of the Solar Choice heat pump scorecard.
- Company Backing and Trustworthiness – Score 4/5: Sanden is a global company with over 45 years of operation in Australia and is highly diversified across automotive and climate systems. Their heat pumps are manufactured in Japan and distributed through trusted local suppliers.
- Warranty Offer – Score 5/5: Sanden offers one of the strongest warranty packages in the Australian heat pump market. The stainless steel tank is covered by a 15-year pro-rata warranty, while the standard heat pump unit is backed by a 6-year warranty. On eligible Eco Plus systems sold with the Sanden Wi-Fi controller package, heat pump unit coverage extends to 10 years.
- Customer Reviews – Score 5/5: On Solar Choice’s independent platform, Sanden’s Heat Pumps units have limited but flawless customer reviews, averaging 5.0 stars. This places it in the top bracket for user satisfaction.
- Functionality – Score: 3/5: The Sanden unit offers ultra-low noise (37 dB) and high heating performance (15.8 W/L), but lacks ability to set multiple heating cycles and Wi-Fi app control functionality unless the optional controller is purchased separately.
Sanden Company Background
Sanden Heat Pump Models Available in Australia
- GAUS-315FQTS: With a 315L stainless steel tank, this model is suited to larger households with higher hot water demand.
- GAUS-300FQTS: This 300L stainless steel model suits medium to large households seeking premium heat pump performance.
- GAUS-250FQTS: With a 250L stainless steel tank, this model is generally suited to average-sized households.
- GAUS-160FQTS: This 160L stainless steel model is designed for smaller households or homes with lower hot water demand.
- GAUS-315FQTV: This variant pairs the Sanden heat pump with a 315L vitreous enamel tank.
Sanden Hot Water Heat Pump Wi-Fi Controller
How much do Sanden Heat Pumps Cost?
| Model | Tank Size | Estimated Price Range | Scorecard Price Tier |
|---|---|---|---|
| GAUS‑250FQS | 250 litres | $5,800 – $6,750 | $$$$$ Highest Cost |
| GAUS‑300FQS | 300 litres | $5,800 – $6,750 | $$$$$ Highest Cost |
| GAUS‑315FQS | 315 litres | $5,800 – $6,750 | $$$$$ Highest Cost |
- For state-specific support, check Victoria rebates or NSW rebates.
- Prices shown are supply only and do not include installation or rebates.
- The Wi-Fi controller is an optional add-on, priced between $279 and $400, and required to unlock features like multiple timers and remote app control.
- Sanden systems qualify for STC rebates, and many state programs (like Victoria and NSW) offer additional savings.
- Use the Solar Choice heat pump savings calculator to estimate your potential energy bill reductions and ROI.
Sanden Warranty Terms & Conditions
| Component | Warranty Duration |
|---|---|
| Stainless Steel Tank | 15 years (pro-rata) – parts and labour included |
| Heat Pump Unit | 6 years standard / 10 years with Wi-Fi controller |
| Wi-Fi Controller | 1 year (parts and labour) |
🔧 Important Notes:
- The 10-year heat pump warranty applies to eligible Eco Plus systems sold with the Sanden Wi-Fi controller package under the relevant FQTD model variants.
- Warranty coverage is void or restricted in regions with water quality issues—especially if chloride levels exceed 200 mg/L or pH falls outside 6.5–8.5.
- Changing water supply (e.g. switching between rainwater and mains) may affect warranty eligibility.
- Warranty terms may differ slightly between standard tanks and vitreous enamel variants—check the Sanden product documentation for more detailed conditions.
For full peace of mind, customers are strongly advised to:
- Confirm local water quality meets Sanden’s specifications.
- Ensure systems are installed by a certified professional.
- Retain proof of purchase and installation to support future warranty claims.
Sanden Eco Plus Hot Water Heat Pump – Pros & Cons
PROS
- Quiet operation at just 37 dB(A), among the quietest heat pumps in Australia.
- Exceptional warranty coverage, with up to 15 years on the stainless steel tank and if you purchase wifi controller up to 10 years on the heat pump.
- Manufactured in Japan with a proven track record of quality, reliability, and performance in Australian conditions.
- Environmentally friendly R744 (CO₂) refrigerant, offering minimal global warming potential and excellent thermal efficiency.
- High heating performance and thus hot water recovery times
CONS
- Highest cost category on the Solar Choice scorecard, with most systems priced above $5,800 (supply only).
- Wi-Fi controller sold separately (approx. $279–$400), required to access multiple timers and remote app control and extended warranty conditions.
- No included scheduling support out of the box—only basic LCD control unless the optional controller is added.
- Larger upfront investment may not be justifiable for smaller households or low hot water usage homes.
- Warranty exclusions apply for installations in areas with poor water quality (high chloride or unbalanced pH), which may limit eligibility in some regions.
Verdict for Homeowners
The Sanden Eco Plus GAUS‑250FQS is a premium heat pump solution best suited to homeowners who are prioritising long-term reliability, ultra-quiet performance, and energy efficiency. While the high upfront cost and add-on Wi-Fi controller may deter budget-conscious buyers, households planning to stay put and maximise energy savings over time will likely find the investment worthwhile.
Frequently Asked Questions (FAQ)
How much energy does a Sanden Eco Plus heat pump use?
Where are Sanden heat pumps made?
How long does a Sanden heat pump last?
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Reviews from Australians who have installed Sanden Heat Pumps
Great appearance. Very quiet running noise.
Appearance was fine . Longevity woeful. Service and backup woeful. Our plumber was disgusted.
Extremely satisfied with our new Sanden Eco300l heat pump. The quality of the system is evident on all levels. Aesthetics, design functionality, quality of components and verifiable data on performance history. As the recognized market leader in the HP HWS arena, we believe that we have purchased a unit for the long term, with a comfortable peace of mind.
With heat pump systems like most other purchases, you get what you pay for. Sanden equipment comes at a higher cost but the quality, efficiency and long warranty period justifies the extra expenditure when compared to alternative systems.
Installation Photos
So far, all good.
It works and I'm very happy with it.
Review left 6 years after system installed
So, it would be useful to understand how much energy is required to heat from cold at say 15c ambient, maintain heat with x % of use. That way I have a chance to estimate how expensive it is compared to gas to make a decision to change
Hi Martin,
Agreed, that would be the perfect data for calculations. We have provided some estimates of savings on this page and fully disclosed our assumptions for your reference:
https://www.solarchoice.net.au/heat-pumps/
Cheers
Solar Choice Team