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Thermann Smart Electric 125L Storage Hot Water System – Compact Size, Smart Power, Everyday Comfort
Summary
The Thermann Smart Electric 125L Hot Water System is the compact, energy-efficient solution designed for singles, couples, and small spaces. With app-based Wi-Fi control and energy-saving smart modes, this system delivers powerful performance without taking up much room. Installed by JR Gas & Water—your award-winning hot water experts in Brisbane & the Gold Coast.
Why Choose the Thermann Smart Electric 125L?
Perfect Size for 1–2 People
This 125L model is ideal for units, studios, apartments, or smaller homes needing a reliable hot water system without overpaying for unused storage capacity.
Control It from Anywhere
Use the Thermann Smart App to:
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Turn your system on or off remotely
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Monitor your energy usage in real-time
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Set custom heating schedules
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Track performance and reduce energy waste
It's hot water on your terms—with smarter, leaner power bills.
Built-In Smart Operating Modes
Choose from four intelligent settings that work with your lifestyle:
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Eco Mode: Automatically adjusts based on your usage habits to lower electricity use
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Schedule Mode: Program specific heating times around your day
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Holiday Mode: Pause the system when you’re away to save power
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Manual Mode: Full user control when you need it most
Engineered for Tough Aussie Conditions
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Built-in protection for hard water areas
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Enamel-coated steel tank for durability
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10-year tank warranty for complete peace of mind
This system is made to withstand Queensland's climate and water quality.
Fast & Flexible Heating Options
Available in 1.8kW, 2.4kW, or 3.0kW elements:
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Recovery rate of up to 51.6L/hour @ 50°C rise
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Fast, efficient heating—even with limited space
Installed by the Experts at JR Gas & Water
Don’t risk a DIY or handyman job—our licensed team ensures:
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Full QBCC compliance and paperwork
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Safe and reliable installation
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Removal of old unit
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Setup of Wi-Fi app and system operation
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All new valves and fittings included
Key Benefits at a Glance
✅ Ideal for 1–2 people – Perfect for apartments, studios & small homes
✅ Wi-Fi App – Control it from your phone
✅ Eco Mode – Learn your usage and save money
✅ Hard Water Compatible – Built for Brisbane & Gold Coast
✅ 10-Year Tank Warranty – Long-lasting performance
✅ Smart Scheduling – Avoid heating during peak rates
✅ Installed by 3-time Best Plumber Winners – JR Gas & Water
What’s Included in Your JR Gas & Water Installation?
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Thermann Smart Electric 125L Storage System
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All valves and fittings
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Licensed plumbing and electrical work
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QBCC Form 4
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Old system removal
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App setup and tutorial for ongoing control
Questions About This System
1. Is 125L enough for my home?
Yes—perfect for 1–2 people or small homes with moderate hot water use.
2. What makes it “smart”?
Wi-Fi connectivity and an easy-to-use app let you control everything from your phone, including turning it off while you're away.
3. How does Eco Mode help me save money?
It learns your daily habits and reduces heating when it’s not needed—helping you cut back on electricity bills.
4. Is it good for hard water?
Yes, it’s designed for long life in areas with hard water, like many parts of Brisbane and the Gold Coast.
5. Is installation fully included?
Absolutely. We take care of everything—from removal to setup and compliance forms.
Use collapsible tabs for more detailed information that will help customers make a purchasing decision.
Ex: Shipping and return policies, size guides, and other common questions.
Electric Hot Water System Package Selection Guide
(Please rotate mobile device to landscape for easy viewing)
Choosing the right electric hot water system package depends on your installation needs, household size, and whether additional electrical work is required. Use this guide to compare package levels and find the best fit for your home.
Selecting the right package helps streamline installation, but we understand that needs may change, and that the purchaser isn’t a plumber. We’re flexible and can make adjustments, such as upgrading to the next package as needed.
💡 Which Package is Right for You?
IMPORTANT - All online packages are for EXTERNAL installations only, for internal installations please complete our quote request form.
✅ Base – For compliant replacements of Existing EXTERNAL installations
Ideal for direct swaps where the existing system meets compliance. No extra plumbing or electrical work included.
(EXAMPLE - A Rheem 250L 491250 replacing complaint Rheem 250L 491250 not a Rheem 250L 101250)
✅ Silver – For minor upgrades
Includes pipework alterations and a valve kit but does not include electrical modifications or system disposal. Designed for those swapping a similar system and working to a tight budget.
(EXAMPLE - Swapping a 10year old Rheem 250L with a new Rinnai 315L where the existing installation is good but requires pipework alterations to adapt the new unit and new valve set for warranty)
🏆 Gold (Best Seller) – For standard installations
Covers old system removal and plumbing modifications, making it the most common choice for standard installations.
(EXAMPLE - Swapping a 20year old Dux 125L with a new Vulcan 315L, Strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)
💰 Sapphire (Best Value) – For installations requiring electrical work
Adds electrical safety features like an isolator, safety switch, and cable extensions to ensure a compliant and safe electrical connection.
(EXAMPLE - Swapping an old heat pump with a new Everhot 400L that requires a hardwired electrical connection, then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)
✅ Diamond – For homes needing extensive electrical work
Provides extra plumbing and electrical modifications, including a new electrical circuit, making it ideal for homes without existing wiring for an electric system.
(EXAMPLE - Swapping an old Gas System with a new Rheem 315L that needs its own dedicated electrical circuit, type then strip all down and redo the valves, pipework, drain lines, support base and dispose of the old unit)
✅ Platinum – The ultimate package
Includes everything – system relocation, extensive plumbing and electrical upgrades, and a new electrical circuit for complete installation flexibility.
(EXAMPLE - Replacing any existing system of any type then relocating it to a new position on the house that requires the electrical/plumbing to be installed or relocated to the new installation position)
🏆 Package Comparison Guide
| Feature | Base | Silver | Gold 🏆 Best Seller | Sapphire 💰 Best Value | Diamond | Platinum |
|---|---|---|---|---|---|---|
| Existing Unit Must be Identical Make/Model/Series as Purchase | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Form 4 (Compliance Certification) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Pipework Alterations | ❌ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Valve Kit (Required for System Operation) | ❌ | ✅ | ✅ | ✅ | ✅ | ✅ |
| Included Altered Pipework (m) | ❌ | 2m | 8m | 8m | 8m | 20m |
| 🏆 Package Comparison Guide | Base | Silver | Gold 🏆 Best Seller | Sapphire 💰 Best Value | Diamond | Platinum |
| Support Base (For Uneven or Soft Ground) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| Waste & System Disposal (Old System Removal) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| System Drainlines (Prevents Flooding & Improves Longevity) | ❌ | ❌ | ✅ | ✅ | ✅ | ✅ |
| Electrical Isolator (Ensures Safe Operation & Maintenance Access) | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ |
| Electrical Extension (Required for Distance to Power Source) | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ |
| 🏆 Package Comparison Guide | Base | Silver | Gold 🏆 Best Seller | Sapphire 💰 Best Value | Diamond | Platinum |
| New Electrical Circuit (For Homes Without Existing Power Supply) | ❌ | ❌ | ❌ | ❌ | ✅ | ✅ |
| Safety Switch (Protects Your Home from Electrical Faults) | ❌ | ❌ | ❌ | ✅ | ✅ | ✅ |
| Included Altered Cabling (m) | ❌ | ❌ | ❌ | 2m | 10m | 10m |
| System Relocation (Move System to New Position) | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ |
| Requires Existing Installation to be Compliant | ✅ | ✅ | ❌ | ❌ | ❌ | ❌ |
Whenever a product is required, we only source from trusted, warranty‑backed manufacturers:
- Valves – AVG, RMC, Rye Metal (and subsidiaries)
- Copper – Type B Kembla or Crane
- PEX Systems - Ezipex
- Insulation – eFlex or K‑Flex
- Electrical switches & timers – Hager
- Conduit – Medium Duty PVC Vinidex or GTS
- Brassware – Brasshards
- Hydraulic crimp fittings – EziPress, Viega, Kembla
- Sealants – Loxeal
Feel free to let us know if you have any other preferred brands!
IMPORTANT - All online packages are for external installations only, for internal installations please complete our quote request form.
🛠 Need Help Choosing?
Not sure which package is right for you? Contact JR Gas & Water, and we’ll help you select the best solution for your home!
ZipPay – 6-Month Interest-Free on All Products
ZipPay allows you to buy now and pay later, offering flexible, interest-free payments for up to 6 months on all JR products. It’s easy to set up, and you can customize your repayment schedule to suit your budget. Payments can be made weekly, fortnightly, or monthly, with a $6 fee if the balance isn’t paid off by the due date.
Humm – Up to 12 Months Interest-Free
Humm provides interest-free payment plans on purchases up to $30,000, perfect for both small and large buys. For items over $2,000, you can spread payments over 12 months. Humm also offers flexibility in scheduling payments based on when you get paid
Afterpay – 8 Weeks, No Interest
With Afterpay, spread the cost of purchases across four equal installments, due every two weeks, over an 8-week period. There’s no interest, and as long as payments are made on time, there are no fees. Perfect for purchases between $100 and $1,500
Plenti Finance – For Reclaim Systems Only
Plenti Finance is available exclusively for Reclaim Energy systems. This option offers tailored repayment terms with competitive interest rates, helping make eco-friendly choices more affordable. For more detailed information on Plenti’s terms and eligibility for Reclaim systems, visit the Reclaim Energy finance page
Brand - Thermann
Model Number -
Volume - 125L
Width - 530mm
Height - 1090mm
Manufactured In - Australia
Cylinder/ Heat Exchange Material - Steel Enamel
Cylinder/Heat-Exchange Warranty - 10 Years
Noise Level - NAdBa
Dry Weight - kg
Energy Source -
Wifi Controller Built in or Compatible - Yes
Built In Timer - Yes
LED/LCD Status Indicator - No1
Coefficient of Performance (COP) -
If you're in Queensland and considering a new electric hot water system, JR Gas & Water is the company to choose. Here's why:
Experience and Expertise: JR Gas & Water has over 10 years of experience in the gas and plumbing industry. Their team of licensed and insured professionals is highly skilled and knowledgeable about all aspects of electric hot water system installation, maintenance, and repair. They can provide expert advice on the best system for your needs and ensure a smooth installation process.
Quality Products: JR Gas & Water uses only high-quality products from trusted brands to ensure your electric hot water system is reliable and efficient. They also offer a range of options to suit different budgets and requirements.
Competitive Pricing: JR Gas & Water offers competitive pricing for their electric hot water systems, ensuring that you get a great value for your investment. They also provide a detailed quote upfront, so there are no surprises or hidden costs.
Customer Service: JR Gas & Water is committed to providing excellent customer service. They are always available to answer any questions or concerns you may have and are committed to ensuring your satisfaction.
Local Business: JR Gas & Water is a locally owned and operated business in Queensland. By choosing them for your electric hot water installation, you are supporting a local business and contributing to the local economy.
Warranty and Guarantee: JR Gas & Water provides a warranty and guarantee on all their products and services, giving you peace of mind knowing that your system is covered in case of any issues.
Energy Efficiency: Electric hot water systems can be energy efficient, and JR Gas & Water can help you choose the right system for your needs. They can provide advice on energy-saving features and options, such as timers and thermostats, to help you save on your energy bills.
Safety: JR Gas & Water is committed to safety and ensuring that all installations are done to the highest safety standards. They are also familiar with local safety regulations and requirements, ensuring that your electric hot water system is installed safely and in compliance with all relevant codes.
JR Gas & Water is a reliable and experienced choice for your electric hot water system installation in Queensland. With a commitment to quality products, competitive pricing, excellent customer service, and safety, they can help you make the switch to a more efficient and cost-effective solution for your hot water needs. Contact them today to learn more about their services and how they can help you.
