A Comprehensive Review of the Rheem 135L Gas Hot Water System

When considering a gas hot water system, homeowners prioritize long-term reliability, cost efficiency, and energy savings. The Rheem 135L 4-Star Gas Hot Water System is a popular choice for families looking for affordable, high-performance hot water. But does it live up to the hype? In this review, we’ll break down its durability, energy efficiency, user experiences, and real-world performance to help you make an informed decision.

🔹 Key Highlights of the Rheem 135L 4-Star Natural Gas Hot Water System

✅ 4-Star Energy Efficiency – Lower gas consumption means reduced running costs and a smaller carbon footprint. The 4-star energy efficiency uses less gas compared to older heater systems. ✅ 135L Capacity – Ideal for households of 3-4 people, delivering up to 248L of hot water in the first hour. ✅ Durable Construction – Built with thick steel cylinders and anode protection for longevity. ✅ Reliable Hot Water Supply – Maintains mains pressure, so multiple taps can be used simultaneously. ✅ 10-Year Cylinder Warranty – Backed by Rheem’s trusted after-sales support and a network of service professionals.

💡 Considering an upgrade? The Rheem 135L is a solid mid-range gas water heater that balances affordability with performance.

📋 Product Details – Specifications and Features

The Rheem 4 Star 135L Gas Water Heater is a reliable and energy-efficient solution for your hot water needs. Here are some key specifications and features that make it stand out:

• Model Number: 347135

• Product Name: Rheem 4 Star 135L Gas Water Heater

• Energy Efficiency Rating: 4 Star

• Storage Capacity: 135L

• First Hour Capacity: 248L

• Fuel Type: Natural Gas

• Mains Pressure: Yes

• Suitable for: Residential use

• Warranty: 10-year warranty on the cylinder, 1-year labour warranty on the cylinder, and 1-year parts & labour warranty on all other components for domestic (non-commercial) installations

This gas water heater is designed to provide a consistent and efficient hot water supply, making it an excellent choice for households looking to reduce their gas consumption and carbon footprint. With its robust warranty and high first hour capacity, the Rheem 4 Star 135L ensures you have hot water when you need it most.

🔧 Energy Efficiency – How Much Will You Save?

The Rheem 135L 4-Star Gas Hot Water System is designed for cost-effective energy use, making it a great choice for homeowners looking to cut down on gas bills.

The high first hour capacity of 248L ensures less waiting time between showers, making it convenient for households with multiple users.

💰 4-Star Energy Rating – Uses less gas than older models, resulting in lower running costs. 💰 Smart Thermostat Technology – Maintains water at an optimal 73°C, reducing wastage and excessive reheating. 💰 Average Annual Running Costs – Estimated between $295 - $665, significantly cheaper than electric hot water systems ($700 - $925 per year).

🔹 Verdict: The Rheem 135L is an energy-efficient choice that delivers long-term savings, especially when replacing an older gas model.

🛠 Durability & Lifespan – How Long Does It Last?

A hot water system is a long-term investment, and durability is key. The Rheem 135L is engineered to last up to 15 years with proper care.

✔ Thicker Steel Cylinder – Enhances durability and resists wear and tear.
✔ Protective Anode – Prevents corrosion and extends the life of the system.
✔ Reliable Performance – Handles daily high-demand usage in family homes.
✔ 10-Year Cylinder Warranty – Peace of mind with long-term support.

🔹 Verdict: With proper maintenance, the Rheem 135L outperforms many mid-range gas water heaters in terms of longevity.

🔥 Hot Water Supply – Does It Deliver Enough?

The Rheem 135L ensures a continuous and reliable hot water supply, making it ideal for small to medium households.

💧 135L Storage Capacity – Designed for 3-4 people. 💧 248L First-Hour Delivery – Supports multiple showers and taps running simultaneously. The system's efficient design ensures less waiting time between showers, even when multiple taps are in use. 💧 Maintains Mains Pressure – No drop in water pressure when multiple outlets are used.

🔹 Verdict: If you have a family of 3-4, this system offers a steady, reliable hot water supply. Larger families may want to consider the 170L or 360L models.

💵 Cost Breakdown – Is It Worth the Investment?

The Rheem 135L 4-Star Gas Hot Water System is competitively priced compared to similar models, offering excellent value for money.

🛠 Unit Cost – Approximately $1,200 - $1,500.
🛠 Installation Cost – Between $400 - $700, depending on complexity.
🛠 Fully Installed Price – Around $1,800 - $2,200.
🛠 Running Costs – $295 - $665 per year, cheaper than electric water heaters.

🔹 Verdict: While the initial cost is moderate, the low running costs make it an affordable long-term investment.

🛠 Installation & Compatibility – Easy Upgrade from Older Models

One of the standout benefits of the Rheem 135L is that it’s designed for easy installation, particularly as a replacement for older gas hot water systems.

✔ Standard Connection Points – Simple swap-over for existing gas units.
✔ Outdoor Installation – Compact design fits well in backyards or side passages.
✔ Professional Installation Recommended – Ensures optimum performance and warranty coverage.

🔹 Verdict: If you’re replacing an older gas system, the Rheem 135L is a hassle-free upgrade.

🔧 Maintenance & Servicing – Keep It Running at Peak Performance

Like any hot water system, regular maintenance is essential for long-term efficiency.

✔ DIY Maintenance – Perform visual inspections for leaks and test the pressure relief valve regularly.
✔ Professional Servicing – Every 5 years to ensure warranty compliance.
✔ Anode Replacement – Extends system life by preventing cylinder corrosion.

💡 Tip: Scheduled servicing helps reduce breakdowns, extend lifespan, and maintain efficiency.

🔍 Comparison with Other Models – How Does It Stack Up?

The Rheem 4 Star 135L Gas Water Heater is an energy-efficient replacement for most older gas water heaters. Here’s how it compares to other models:

• Energy Efficiency: With a 4 Star energy efficiency rating, the Rheem 4 Star 135L uses less gas than most older heaters, making it a cost-effective and environmentally friendly option.

• First Hour Capacity: Boasting a 248L first hour capacity, this model provides more hot water in the first hour than many other gas water heaters, reducing waiting time between showers and ensuring a steady supply.

• Mains Pressure: The mains pressure feature ensures a strong flow of hot water, making it suitable for households with multiple showers or appliances running simultaneously.

• Warranty: The Rheem 4 Star 135L comes with a 10-year warranty on the cylinder and a 1-year labour warranty on the cylinder, along with a 1-year parts & labour warranty on all other components. This comprehensive warranty provides peace of mind and underscores the product’s durability.

In summary, the Rheem 4 Star 135L Gas Water Heater stands out as a superior choice for those seeking an energy-efficient, high-capacity, and reliable hot water system. Its advanced features and robust warranty make it a worthwhile investment for any household.

👥 Customer Reviews – Real User Experiences

🔹 What customers love:
✅ Reliable hot water supply for 3-4 people.
✅ Lower gas bills compared to electric models.
✅ Mains pressure system means no drop in hot water flow.
✅ Long lifespan with proper maintenance.

🔹 Common complaints:
❌ Some users report pilot light issues after 7-8 years.
❌ Requires occasional servicing to prevent performance issues.

🌱 Environmental Impact – Does It Reduce Carbon Footprint?

The Rheem 135L is a more sustainable alternative to electric water heaters.

🌍 4-Star Energy Rating – Uses less gas, lowering carbon emissions.
🌍 Efficient Gas Burners – Reduces wasted energy compared to older models.
🌍 Lower Carbon Footprint – Better than coal-powered electric systems.

🔹 Verdict: A good eco-friendly option, but if you want an even greener solution, consider heat pump or solar hot water systems.

📢 Final Verdict – Should You Buy the Rheem 135L?

The Rheem 135L 4-Star Gas Hot Water System is an excellent mid-range choice for small to medium households looking for affordability, reliability, and efficiency.

✅ Best for:
✔ Families of 3-4 people needing consistent hot water.
✔ Homeowners upgrading from older gas models.
✔ Those wanting lower gas bills and a long-lasting system.

⚠ Consider other options if:
❌ You have 5+ people in the home (consider a larger model).
❌ You live in a cold climate where gas efficiency drops.

💡 Bottom Line: Reliable, efficient, and cost-effective – a great all-rounder for Aussie homes!

🛒 Where to Buy?

✔ Fast & Reliable Australia-Wide Shipping
✔ Professional Installation Services Available
✔ Competitive Pricing & Best Price Guarantee

💧 Upgrade Your Hot Water Today! Order the Rheem 135L 4-Star Gas Hot Water System and enjoy reliable, affordable hot water for years to come. 🚀