Storage gas hot water systems are a reliable and energy-efficient choice for Australian homes. They provide consistent hot water, heat quickly, and remain operational during power outages, making them suitable for households with varying water demands. These systems also reduce greenhouse gas emissions compared to electric alternatives and offer significant long-term cost savings through lower energy use.
This guide explores their advantages, practical considerations, and how they compare to other options, helping you determine if a storage gas hot water system is the best fit for your home.
Key Advantages of Storage Gas Hot Water Systems
Storage gas hot water systems are favoured for their ability to deliver consistent performance under various circumstances. Their features are tailored to meet the demands of modern households. Here’s a closer look at their standout advantages.
| Feature | Details |
|---|---|
| Quick heating | Delivers hot water instantly by preheating and storing it in a tank. |
| Energy efficiency | Uses natural gas, which is both cost-effective and less energy-intensive. |
| Power outage resilience | Operates independently of electricity, ensuring reliable service. |
| Flexible temperature control | Adjustable settings for comfort during different seasons. |
| Environmentally friendly | Produces fewer emissions compared to electricity-powered systems. |
How Storage Gas Systems Work
Storage gas hot water systems function by heating water through a gas burner and storing it in an insulated tank. This tank maintains the water temperature until it is used, ensuring hot water is always available on demand. The insulation minimises heat loss, enhancing efficiency while reducing energy consumption.
Choosing the Right System for Your Home
Selecting the right system involves understanding your household’s water consumption, evaluating the tank’s capacity, and considering installation requirements. The following factors will help in making an informed decision:
- Tank Size
- Small households can opt for tanks ranging from 90 to 135 litres, while larger families may need tanks exceeding 200 litres. Matching the tank size to your daily water usage prevents overconsumption and reduces running costs.
- Energy Star Rating
- Systems with higher energy star ratings use less gas, lowering your energy bills and environmental impact. Investing in an efficient system pays off over time with reduced operational costs.
- Location of Installation
- Outdoor systems save indoor space and are commonly installed in Australian homes. Proper ventilation and accessibility for maintenance are essential for long-term performance.
- Natural Gas Availability
- Check the availability of natural gas in your area. While storage gas systems are cost-effective, they rely on a steady supply of gas to function optimally.
Maximising Energy Efficiency
Efficiency is a critical aspect when investing in a hot water system. Storage gas systems offer significant advantages, but proper usage and maintenance can further optimise their performance.
- Insulate Hot Water Pipes
Insulating pipes reduces heat loss during water delivery, conserving energy and maintaining consistent water temperatures. - Optimise Temperature Settings
Adjust the system to maintain water at a comfortable 60 degrees Celsius. This setting prevents overheating and saves energy without compromising comfort. - Use Timers
Some advanced models allow scheduling heating periods, ensuring water is only heated when needed, reducing unnecessary energy use. - Routine Maintenance
Regular servicing, including checking the burner and tank for wear, prevents inefficiencies and prolongs the system’s lifespan.
Benefits Compared to Other Systems
Each hot water system has unique features, but storage gas systems stand out for their balance of convenience, cost, and efficiency. Here’s how they compare with other popular systems:
| System Type | Advantages | Disadvantages |
|---|---|---|
| Storage Gas | Quick heating, cost-effective, reliable during outages. | Higher upfront installation cost. |
| Electric | Easy to install and widely available | Higher running costs and slower heating. |
| Instantaneous Gas | On-demand heating, compact, no heat loss from storage. | Flow rate may be limited for large households. |
| Solar | Eco-friendly and low operational costs. | High installation cost and weather dependency. |
Reducing Environmental Impact
Natural gas-powered storage systems emit fewer greenhouse gases than electricity-powered systems, particularly those relying on coal-based electricity. Modern systems also feature energy-saving technologies that reduce gas consumption.
For eco-conscious households, combining a gas system with solar panels can further reduce carbon footprints.
Costs of Installation and Operation
Storage gas hot water systems involve higher upfront installation costs compared to electric systems due to the complexity of gas fitting and tank placement. However, these systems are more cost-effective in the long term because of lower running costs associated with natural gas. Operational savings and potential rebates for energy-efficient systems make them a practical investment for many households.
Breakdown of Costs
| Cost Aspect | Storage Gas Systems | Electric Systems |
|---|---|---|
| Installation | $1,500 – $3,000 for new installations $500 – $800 for replacements | $1,000 – $2,000, inclusive of unit, materials, and labour |
| Running Costs | Approximately $300 – $500 annually due to cheaper natural gas | $400 – $800 annually depending on electricity rates |
| Maintenance | Affordable with regular servicing (every 2–3 years, $150–$300 per service) | Minimal, but efficiency decreases over time |
While gas systems might require a larger initial investment, their operational efficiency ensures savings in the long term. Additionally, rebates or incentives for energy-efficient systems may be available in some states.
Maintenance Tips for Longevity
Storage gas hot water systems require regular care to maintain their efficiency and reliability. Here are key maintenance practices:
- Annual Inspection
Schedule a professional inspection yearly to ensure the burner, thermostat, and tank are functioning optimally. - Check for Sediment Build-Up
Over time, minerals can accumulate in the tank, reducing efficiency. Periodic flushing removes this build-up, extending the tank’s lifespan. - Monitor Gas Connections
Inspect gas lines for leaks or damage. Secure connections are crucial for safe and efficient operation. - Replace Anode Rods
The anode rod prevents tank corrosion. Replace it every 3–5 years for maximum durability.
Key Considerations Before Switching
Before choosing a storage gas system, assess your household’s needs and long-term goals. Consider the system’s capacity, upfront costs, and running expenses to ensure it aligns with your usage patterns. Look for models with advanced features like thermostatic mixing valves for better temperature control and safety.
Conclusion
Storage gas hot water systems stand out as a dependable, efficient, and eco-conscious option for Australian households. These systems provide rapid heating, lower energy costs, and consistent performance, making them an excellent choice for families seeking long-term comfort and practicality.
Choosing the right system and maintaining it effectively ensures a steady supply of hot water while minimising environmental impact. Partnering with a reputable installer helps you find a system tailored to your home’s specific needs, delivering reliable performance for years to come.
