At a Glance: Thermann Split Heat Pump Scores 2.5 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 Thermann Split Heat Pump 250L is priced at more than $5,000 placing it in the highest cost bracket.
- 4/5 – Company Backing and Trustworthiness: hermann is a well-established brand in Australia with over a decade of operating history and a broader product range beyond heat pumps. However, we couldn’t confirm a large in-house support team. This earns a strong score for brand credibility.
- 3/5 – Warranty Offer: Thermann offers a solid 10-year tank warranty and 6 years on the heat pump unit. Labour is covered for only 2 years, which is standard but not outstanding. Overall, this warranty provides reasonable peace of mind.
- 0/5 – Customer Reviews:At this time, there are no verified reviews on the Solar Choice platform for this model. Homeowners should consider reaching out to others with experience using Thermann products or asking installers for additional insights. Score 0 points.
- 3/5 Functionality: The unit is quiet at just 37 dBA and delivers strong heating performance with quick hot water recovery times. However, it lacks smart features like app control or flexible scheduling, which are becoming more common in newer systems.
Solarchoice Score = 2.5 out of 5
Please note: The Solar Choice scorecard reflects our opinions only. Customers are encouraged to conduct their own research.
Company Background
What’s the Cost of Thermann Hot Water System Heat Pumps?
| System Type | Typical Price Range | |
| Hybrid Heat Pump | $3,500 – $4,200 | |
| Split System Heat Pump | $4,800 – $5,500 |
Thermann Heat Pump Model & Range
Thermann Split Heat Pump
- Models & Capacities: Available in 160L, 250L, 315L, and 400L, suitable for households ranging from 2 to 9 people.
- Key Features:
- Quiet Operation: Operates at 37 dBA, making it one of the quieter options on the market.
- Eco-Friendly Refrigerant: Uses R744 (CO₂) with a Global Warming Potential (GWP) of 1.
- Flexible Installation: The heat pump unit can be installed up to 5 meters vertically or 15 meters horizontally from the storage tank.
- High Pressure Tolerance: Designed to operate at pressures up to 850 kPa.
- Warranty: 10 years on the tank, 6 years on the heat pump unit, and 2 years on parts and labour.
Thermann Integrated Heat Pump
- Models & Capacities: Available in 220L and 300L, suitable for households of 3 to 6 people.
- Key Features:
- Manual Booster Element: Includes a manual booster for times of high hot water demand.
- Maintenance-Free Anode: Uses an impressed current anode, eliminating the need for regular replacements.
- Operating Range: Functions efficiently in temperatures from -5°C to 42°C.
- Refrigerant: Uses R134a, which has a higher GWP compared to CO₂.
- Warranty: 5 years on the tank, 2 years on the sealed refrigeration system, and 1 year on the T&P relief valve.
Warranty Overview for Homeowners
When investing in a hot water heat pump, warranty coverage is a critical factor. It not only protects you financially if something goes wrong but also reflects the manufacturer’s confidence in its product. Thermann offers two main types of heat pumps — Split and Integrated (Hybrid) — with distinct warranty terms.
Thermann Split System Warranty
Thermann’s Split System is positioned as their premium product, and its warranty reflects this higher standard:
- Tank Warranty: 10 years
- Heat Pump Unit: 6 years (includes major components like the compressor and fan)
- Parts & Labour: 2 years
What This Means:
Homeowners get long-term protection on the tank and the mechanical system itself, which is a strong indicator of durability. The 2-year labour coverage is typical in the market, covering installation-related faults or repairs during the initial use period.
Important to Know:
The warranty is valid only for professionally installed systems and requires that the system is maintained according to the manufacturer’s recommendations. Keep all proof of purchase and installation documentation.
See the owners guide with split system warranty information.
Thermann Integrated System Warranty
The Hybrid system is Thermann’s all-in-one heat pump offering — a more affordable and compact option. Its warranty is more limited:
- 7-year tank warranty
- 3-year labour warranty for the tank
- 3-year labour warranty for refrigeration and components
- 1-year warranty for other parts and labour
Note on Manufacturer:
The integrated systems are supplied by Stiebel Eltron under the Thermann brand and distributed by Reece. Any warranty claims must go through these entities depending on the product type.
See the integrated system owners manual & warranty guide.
Pros & Cons of The Therman Split System
Pros
- Quiet Operation: The split system’s 37 dBA rating is ideal for installations near living spaces.
- Eco-Friendly Refrigerant: The use of CO₂ in split systems is environmentally responsible.
- Flexible Installation: Split systems offer versatile installation options, accommodating various home layouts.
- Large Tank Sizes: Options up to 400L cater to larger households with higher hot water demands.
Cons
- High Upfront Cost: Split systems are priced over $5,000, which may be a barrier for some homeowners.
- Limited Smart Features: Lack of Wi-Fi connectivity and programmable scheduling may not meet the expectations of tech-savvy users.
- Refrigerant in Hybrid Models: The R134a refrigerant used in hybrid models has a higher environmental impact.
- Shorter Warranty on Hybrid Models: Compared to split systems, hybrid models offer shorter warranty periods.
Is Thermann Hot Water Heat Pumps Worth It?
If you’re a homeowner weighing up whether a Thermann heat pump is right for you, the key takeaway is that Thermann offers a dependable, no-frills solution from an established brand. Their split system stands out for its quiet performance and sturdy design, but it’s priced at the higher end of the market and doesn’t include features like WiFi connectivity or smart scheduling that many newer models now offer.
The Solar Choice scorecard gives Thermann a mid-range rating overall, reflecting a solid warranty, proven company backing, and good – but not exceptional – functionality. The lack of customer reviews is a noticeable gap, which means you’ll need to rely on installer guidance and independent research to assess real-world performance.
In short, Thermann is a solid option if you value brand credibility, quiet operation, and are okay paying more for simplicity. But if you’re looking for cutting-edge tech, extensive consumer feedback, or lower pricing, there are other systems on the market that might be a better fit. Matching the right system to your household’s needs and usage patterns is key – and comparing quotes from multiple suppliers will help ensure you get the best outcome.
