Need the best gas hot water system? Our guide reviews top models for efficiency, capacity, and convenience. Discover the perfect fit for your home.
Top 5 Gas Hot Water Systems for Every Need
Not sure which gas hot water system is right for you? We’ve rounded up the top five options to help you find the best fit for your home and lifestyle.
- Best for Low Maintenance: AquaMax Stainless Steel Unit
- Best for Large Families: Vulcan Storage Tank Heater
- Best for Energy Efficiency: Rheem Instantaneous Hot Water System
- Best for Medium Households: Rinnai 175L
- Best for Compact Spaces: Rinnai Continuous Flow Unit
Table of Contents
AquaMax Stainless Steel Unit - Best for Low Maintenance
Price: From $1,200 onwards (Please speak to your local plumber for updated pricing)
Specifications:
- High thermal efficiency
- Stainless steel tank with over 15 years lifespan
Pros:
- Long lifespan
- Uses heat efficiently to lower energy bills
- No anode replacement required
Cons:
- Higher upfront cost
If you want a hot water system that’s reliable and low maintenance, the AquaMax Stainless Steel Unit is a great choice. Its tough stainless steel storage tank means it can last 15 years or more, so you won’t have to worry about replacing it anytime soon. Plus, unlike some other hot water heaters, you don’t need to replace an anode, which means fewer maintenance hassles.
While it does cost more upfront, you’ll save money in the long run thanks to its high energy efficiency. It only heats water when needed, cutting down on energy consumption and keeping your running costs lower. If you prefer a “set it and forget it” system, this one’s a solid pick—just like heat pump water heaters.
The only downside? The initial cost is higher. But if you’re thinking long-term, it’s a cost-effective choice!
Rating:
- Price: 3/5
- Design: 4/5
- Performance: 5/5
- Maintenance: 5/5
Wondering how long your system will last? Read about how long gas hot water systems typically last and when it might be time to replace yours.
Vulcan Storage Tank Heater - Best for Large Families
Price: From $900 onwards (Please speak to your local plumber for updated pricing)
Specifications:
- Sizes for natural gas units can go up to 170L (Electric hot water systems offer sizes that reach up to 400L)
- Rapid heat recovery time
Pros:
- Suitable for large families
- Different sizes available
- Affordable
Cons:
- Takes up more installation space
If you’ve got a big household, the Vulcan Storage Tank Heater is a great hot water solution. With sizes up to 170L for gas storage and 400L for electric models, it’s built to keep up with high hot water usage. Plus, it’s affordable, so you don’t have to break the bank for a reliable hot water system.
One of the best things about this system is its rapid heat recovery, meaning you won’t run out of hot water—even when everyone’s using it at the same time! That’s a lifesaver for large families who need a consistent hot water supply.
The only catch? It takes up more space, so if you’ve got a smaller home, make sure you have enough room for the storage unit. Also, if you live in colder climates, you may need to consider heat loss and water temperature adjustments.
But if you need a reliable, cost-effective hot water system, this is a solid pick!
Rating:
- Price: 4/5
- Design: 3/5
- Performance: 4/5
- Maintenance: 4/5
Need a professional to install your new system? Our expert hot water plumbers in Melbourne can get the job done quickly and efficiently.
Rheem Instantaneous Hot Water System - Best for Energy Efficiency
Price: From $1,000 onwards (Please speak to your local plumber for updated pricing)
Specifications:
- High energy efficiency
- Tankless design
Pros:
- High energy efficiency
- Cost-effective operation
- Fewer greenhouse gas emissions for a healthier environment
Cons:
- Complex installation
- Requires professional assistance
If you want a highly energy-efficient hot water system, the Rheem Instantaneous Hot Water System is a top pick. This continuous flow water heater only heats water when you turn on the hot water tap, so you’re not wasting energy keeping a water tank warm all day. It also has a high flow rate, ensuring strong water pressure for hot showers.
Since this continuous flow system uses a gas burner and heat exchanger, it heats cold water quickly, providing hot water outlets with a steady supply. That’s why it’s great for cutting energy consumption and reducing installation costs over time. Plus, it works well with solar hot water systems for even greater savings.
I’ve used the Rheem system myself, and it really delivers on energy efficiency. You won’t run out of hot water, and you’ll only use as much water as you need. However, installation is more complex than a regular hot water system, so you’ll need a professional to handle the hot water system installation properly.
Even with the higher upfront costs, the long-term savings, eco-friendly benefits, and government rebates make it a smart investment for anyone looking to reduce energy consumption.
Rating:
- Price: 4/5
- Design: 4/5
- Performance: 5/5
- Maintenance: 4/5
Struggling with weak water flow? Here’s how to fix low hot water pressure in your home.
Rinnai 175L - Best for Medium Households
Price: From $950 onwards (Please speak to your local plumber for updated pricing)
Specifications:
- 175L storage capacity
Pros:
- Suitable for medium households
- Consistent supply of hot water
Cons:
- Requires considerable installation space
If you’re looking for a dependable gas hot water system, the Rinnai 175L is a top choice for medium households. With its large 175L storage tank, it ensures a steady water flow and hot water supply, even during peak times. That means hot showers for everyone—no more racing to be first in the bathroom!
One thing to consider is installation space. Since it’s a storage unit, it needs more room than a gas continuous flow system. If space is tight, you might want to look at electric hot water heaters or even solar-powered systems with solar collector panels for an energy-efficient water heater option.
From my experience, the Rinnai 175L is one of the best hot water systems for medium families. It provides only as much water as needed, preventing water warm-up delays. However, be sure to check for water leaks and schedule regular maintenance to keep it in top shape.
If you’re planning a new hot water system installation, consider off-peak electricity options to save on running costs. Whether you’re washing up at the kitchen sink, taking a shower, or running multiple hot taps, this system delivers reliable performance.
Rating:
- Price: 4/5
- Design: 3/5
- Performance: 4/5
- Maintenance: 4/5
Rinnai Continuous Flow Unit - Best for Compact Spaces
Price: From $850 onwards (Please speak to your local plumber for updated pricing)
Specifications:
- Continuous flow design
- Wall-mounted
Pros:
- Space-efficient
- Eco-friendly
- On-demand hot water
Cons:
- May require professional installation
The Rinnai Continuous Flow Unit is a great space-saver, giving you hot water on demand without taking up much room. Because it’s wall-mounted, it’s perfect for small homes, apartments, or anyone short on space. Plus, it’s energy-efficient, so you’re not wasting water or power while still getting a full range of hot water whenever you need it.
From my experience, this unit does exactly what it promises—it keeps hot water flowing while saving space and cutting down on energy use. Since it only heats water when needed, you’re not paying to heat a full tank all day.
It’s also an eco-friendly choice, helping to lower carbon emissions. If you use solar panels to power your home, pairing them with this system can make your hot water solution even more energy-efficient.
One thing to keep in mind—installation can be tricky, so you’ll probably need a professional to set it up. The pilot light in gas models ensures reliable operation, but it’s important to check it if you ever experience issues.
That might add to the initial cost, but in the long run, you’ll save on energy bills. If you want a reliable, energy-efficient way to supply hot water in a compact space, this is one of the best hot water systems out there.
Rating:
- Price: 4/5
- Design: 5/5
- Performance: 4/5
- Maintenance: 4/5
Not sure if your home is set up for a gas system? A licensed gas plumber in Melbourne can assess your setup and handle the installation safely.
How to Choose the Best Gas Hot Water System
When picking gas hot water heaters, consider these key factors:
- System Type & Household Size
- Continuous flow systems: Compact, heat water as needed, great for smaller homes.
- Storage systems: Hold and quickly heat large volumes of water, ideal for bigger families.
- Energy Source & Running Costs
- Gas hot water systems are cheaper to run than electric ones.
- Can reduce energy consumption by up to 90%, saving you money on bills.
- Many models work with both natural gas and LPG, giving you more flexibility.
- Installation Location
- Most gas systems are installed outdoors due to venting needs.
- Some can be installed indoors with a flue system.
- Ensure you have access to a gas line before choosing a system.
- Energy Efficiency & Environmental Impact
- High energy ratings mean lower bills and less impact on the environment.
- Look for innovative features that boost efficiency and performance.
A gas hot water unit can be a great long-term investment, giving you reliable, efficient, and cost-effective hot water for years to come!
Not sure what capacity is right for your home? Check out our guide on what size hot water system you need to make the best choice.
Summary
Choosing the best gas hot water system for your home comes down to a few key things—your household size, energy efficiency needs, and installation space.
- If you want low maintenance, the AquaMax Stainless Steel Unit is a great pick.
- Big family? The Vulcan Storage Tank Heater has the capacity to keep up with high demand.
- For energy-conscious households, the Rheem Instantaneous Hot Water System is a top choice.
- Medium-sized homes will benefit from the Rinnai 175L, while
- Smaller spaces are best suited to the Rinnai Continuous Flow Unit.
Picking the right system isn’t just about having enough hot water—it’s also about saving money on bills and reducing your impact on the environment. A quality gas hot water system will keep your showers hot, your costs low, and your home running efficiently for years to come.
If you’re thinking about upgrading or installing a new hot water system, make sure to choose one that suits both your immediate needs and long-term goals. A smart choice today means comfort, savings, and reliable hot water for years to come.
Aside from hot water system installations and repairs, MGR Plumbing offers a wide range of professional plumbing services, including blocked drains, leak detection, emergency plumbing, and more.
Frequently Asked Questions
What are the benefits of gas hot water systems over electric systems?
Gas hot water systems heat water faster and cost less to run than most electric models. They also tend to have a lower environmental impact, making them a great option for saving money and reducing energy use!
How do continuous flow hot water systems work?
A continuous flow system heats water only when you need it, rather than storing it in a tank. This means less energy waste, lower bills, and a steady supply of hot water—even if multiple taps are running!
What factors should I consider when choosing a gas hot water system?
Think about:
- Household size (How many people will be using hot water?)
- Daily water usage (Do you use a lot of hot water at once?)
- Energy efficiency (Want to save on bills?)
- Installation space (Do you have room for a large tank or need a compact option?)
- Gas availability (Do you already have a gas connection?)
Are gas hot water systems more energy-efficient than electric systems?
Yes! Gas hot water systems can cut energy use by up to 90% compared to traditional electric models. That means lower energy bills and a smaller carbon footprint.
How long do gas hot water systems typically last?
With regular maintenance, most gas hot water systems last 10 to 15 years. Looking after yours properly means you’ll enjoy reliable hot water for over a decade!
