125L (Litre) Hot Water System: Supply and Installation in Brisbane

Complete Supply & Installation Package - Starting from $1,250

• Full installation by licensed plumbers
• 10-year warranty on tank
• 3-year warranty on parts and labour
• Same-day hot water system installation available in Brisbane

At Mitchell Plumbing & Gas, we understand that having reliable hot water is essential for your home. Our 125L hot water systems are ideal for homes with 2-3 people, giving you plenty of hot water for daily activities.

We source our hot water systems from trusted Australian manufacturers who build units specifically for Queensland conditions. This means your hot water system will stand up to Brisbane's weather while working efficiently all year round.

Our licensed plumbers take care of everything:

• Free on-site assessment
• Removal of old hot water system
• Professional installation
• All required certificates
• hot water system testing and setup
• Site cleanup

The price includes:

• New 125L hot water unit
• All valves and fittings
• Labour costs
• Compliance certificate
• Extended warranty registration

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Features of a 125L Hot Water System

At Mitchell Plumbing & Gas, we want to help you understand what makes our 125L hot water systems special. These hot water systems are packed with features that make them perfect for Brisbane homes.

Our 125L hot water systems come with a high energy rating, which helps lower your power bills through better efficiency. The smart heating technology only works when needed, reducing wasted energy while heating water.

The hot water system delivers strong, steady water pressure that lets you run multiple taps at once while maintaining consistent shower pressure. This means you can fill baths quickly and get better performance from your washing machine.

We only install hot water systems with modern safety features including automatic temperature control and pressure relief valves. The anti-scald protection and built-in leak detection give you peace of mind for your family's safety.

The smart timer hot water system helps you set heating times to match your schedule. You can save money by heating water in off-peak times, ensuring hot water is ready when you need it.

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125L Hot Water System Dimensions

The standard electric hot water system measures 1400mm in height, 520mm in width, and 520mm in depth. When empty, the unit weighs 48kg, and when full of water, it weighs 173kg.

For proper installation, your 125L hot water system needs 500mm clearance on the sides for maintenance and 600mm front access space. The unit must sit on a solid, level base that can support 173kg. Good ventilation around the unit and protection from direct weather are also important for optimal performance.

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125L Hot Water System Weight

The 125L hot water system comes with specific weight specifications that are important for installation planning. The hot water system weighs 48kg when empty, making it manageable for professional installation. When filled with water, the total weight increases to 173kg, which is why proper base support is essential.

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125L Hot Water System Warranty

Your 125L hot water system from Mitchell Plumbing & Gas includes comprehensive warranty coverage. The tank itself is protected by a 10-year warranty, giving you long-term peace of mind against manufacturing defects and material failures.

Parts and labour are covered by a 3-year warranty period. This includes the heating element, thermostat, and valves. The warranty also covers professional repairs and replacement of faulty components during this time.

Standard warranty conditions require:

• Professional installation by a licensed plumber
• Regular maintenance as per manufacturer guidelines
• Normal residential use
• Proper water quality conditions
• Installation in line with local regulations

The hot water system's warranty registration is handled by our plumbers during installation, ensuring your coverage starts right away.

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125L Hot Water System Running Cost

The average running cost of a 125L hot water system in Brisbane ranges from $400 to $600 per year. Your actual costs will change based on your household's hot water usage and when you use hot water most.

Peak electricity rates in Brisbane affect your running costs more than off-peak times. Using your hot water system during off-peak hours (usually 10 PM - 7 AM) can cut your costs by up to 30%. Your electricity tariff type also shapes these costs - whether you're on a standard or time-of-use rate makes a big difference to your bills.

Water heating accounts for about 25% of a typical Brisbane home's energy use. The hot water system's energy rating, water temperature settings, and how well your pipes are insulated all work together to determine your final running costs.

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125L Hot Water System Lifespan

A well-maintained 125L hot water system typically lasts 8-12 years in Brisbane's climate. The actual lifespan of your hot water system depends on several key factors that affect its durability.

Water quality in your area is a big factor - Brisbane's water quality varies by suburb and can affect how long your hot water system lasts. Hard water causes more wear on the system's parts over time.

Regular maintenance helps your hot water system last longer. This includes checking the pressure relief valve yearly and flushing the tank every few years to remove sediment build-up.

The installation location also affects how long your hot water system lasts. Hot water systems installed in covered areas protected from weather generally last longer than those exposed to the elements. Temperature settings above 60°C can also reduce hot water system life as they put more stress on the tank and heating elements.

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125L Hot Water System Maintenance

The 125L hot water system needs regular maintenance to work well and last longer. A simple check every six months helps catch issues early. Checking the pressure relief valve is important - it should be tested by lifting and lowering the lever. If water doesn't flow out freely, this needs fixing.

Every few years, the tank needs flushing to clear sediment that settles at the bottom. This sediment can make the hot water system work harder and use more power. The anode rod inside the tank also needs checking every 4-5 years. This rod stops rust from forming inside the tank.

Watching for signs of problems helps avoid big issues. Look out for rusty water, unusual noises, or leaks around the hot water system. The temperature and pressure readings should stay steady - if they change a lot, this could mean there's a problem.

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Types of 125L Hot Water System for Sale

In Brisbane, we see different types of 125L hot water systems to suit various homes. Each type works differently and has its own benefits.

Electric hot water systems heat water using an element, like a big kettle. They're easy to install and work well in most Brisbane homes. The downside is they can cost more to run if used at peak times.

Gas hot water systems use natural gas or LPG to heat water. They heat water faster than electric hot water systems and often cost less to run. But they need proper ventilation and a gas connection.

Solar hot water systems use Brisbane's sunshine to heat water, with a backup electric or gas booster. They cost more upfront but save money over time because they use less power.

Heat pump hot water systems work like a fridge in reverse. They take heat from the air to warm the water. They work well in Brisbane's climate and use less power than standard electric hot water systems.

Hybrid hot water systems mix two types of heating, usually solar with gas or electric backup. This gives you reliable hot water while keeping running costs down.

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125L Electric Hot Water System

Our 125L electric hot water systems heat water using copper heating elements inside the tank. The hot water system maintains water at a set temperature, usually 50°C, which is safe for household use and stops harmful bacteria growth.

These hot water systems typically use between 3 and 4.8 kilowatts of power when heating water. A standard 125L electric model with a 3.6kW element takes about 2-3 hours to heat a full tank from cold. The hot water system's efficiency rate sits at around 90%, meaning most of the power used goes directly into heating your water.

• For a standard Rheem 125L electric model, you can expect: 
• Energy use: 3,500-4,000 kWh per year 
• Running cost: $450-600 yearly (based on Brisbane electricity rates) 
• Purchase price: $850-950 (unit only) 
• Expected lifespan: 8-12 years

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125L Gas Hot Water System

Our gas hot water systems use a powerful gas burner to heat water quickly. The hot water system starts heating as soon as hot water is used, which means less waiting time between showers. A gas hot water system can heat water twice as fast as an electric hot water system.

The average 125L gas hot water system uses between 92 and 140 megajoules of gas per day. Modern gas hot water systems achieve an energy efficiency rating of up to 6 stars, converting about 95% of gas energy into heat for your water.

For a Rinnai 125L gas storage model: 

• Gas usage: 33,580-51,100 MJ per year 
• Running cost: $380-500 yearly (based on Brisbane gas rates)
•  Purchase price: $900-1,100 (unit only) 
• Expected lifespan: 10-15 years with proper maintenance

Both hot water systems come with temperature control features and safety valves that keep your household protected while delivering reliable hot water.

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125L Solar Hot Water System

Our solar hot water systems use roof-mounted collectors to harness Brisbane's abundant sunshine. The hot water system moves water between these collectors and your storage tank using a small pump. For cloudy days or night use, an electric or gas booster ensures you always have hot water.

The hot water system's solar collectors absorb about 80% of the available sunlight. In Brisbane's climate, this means the hot water system can provide up to 90% of your hot water needs from solar energy alone. The booster only runs when needed, typically using 1-1.5 kWh of power per day.

For a Solahart 125L solar hot water system: 

• Solar contribution: 80-90% of total heating 
• Backup energy use: 500-800 kWh per year 
• Running cost: $150-250 yearly 
• Purchase price: $3,500-4,500 (including installation) 
• Expected lifespan: 15-20 years

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125L Heat Pump Hot Water System

Our heat pump systems work by extracting warmth from the surrounding air to heat your water. This method is like how an air conditioner works, but in reverse. The hot water system uses a fan and compressor to concentrate heat from the air and transfer it to your water.

These hot water systems are highly efficient in Brisbane's climate, using about 75% less electricity than traditional electric hot water systems. A heat pump typically uses 1 kW of electricity to produce 3-4 kW of heat energy, making it one of the most efficient water heating options.

For a Sanden 125L heat pump model: 

• Power usage: 1,000-1,200 kWh per year 
• Heating efficiency: 300-400% 
• Running cost: $250-350 yearly 
• Purchase price: $2,800-3,500 (unit only) 
• Expected lifespan: 12-15 years

Both these hot water systems qualify for government rebates in Queensland, which can help offset the initial purchase cost.

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125L Hybrid Hot Water System

Our hybrid hot water systems combine two heating methods for better efficiency. These hot water systems typically pair solar power with either gas or electric backup. The hot water system automatically switches between energy sources based on the weather and your hot water needs.

The primary solar component provides most of your hot water heating, while the backup hot water system only runs when needed. This dual approach means you're always using the most efficient heating method available at any time.

For a Rheem Hybrid 125L model: 

• Solar contribution: 70-85% of total heating 
• Backup energy use: 600-900 kWh per year 
• Running cost: $200-300 yearly 
• Purchase price: $4,000-5,000 (including installation) 
• Expected lifespan: 12-15 years

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Which Brands Manufacture 125L Hot Water Systems?

Several trusted manufacturers make 125L hot water systems for the Australian market. These include:

Rheem Australia makes a wide range of 125L hot water systems including electric, gas, and solar options. They manufacture their hot water systems in Australia specifically for our conditions.

Rinnai produces reliable 125L hot water systems with a focus on gas and electric models. Their hot water systems are known for fast heating and good energy efficiency.

Dux offers 125L electric and gas hot water systems that are built tough for Australian homes. Their range includes both indoor and outdoor models.

Vulcan makes affordable 125L electric hot water systems that suit smaller households. These hot water systems are straightforward and reliable.

Solahart specialises in solar hot water systems including 125L models. They're experts in solar water heating technology.

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What Are the Best 125L Hot Water System Brands?

Based on Australian customer feedback and warranty coverage, these brands stand out:

Rheem consistently ranks high for reliability. Their 125L hot water systems come with solid warranty coverage and excellent after-sales support. The brand has been making hot water systems in Australia for over 80 years.

Rinnai's 125L hot water systems rate well for energy efficiency and performance. Their continuous flow technology and quality manufacturing result in hot water systems that last.

Solahart leads in solar hot water technology. Their 125L solar hot water systems have strong performance ratings and comprehensive warranties. The brand is known for excellent build quality.

Dux offers good value with their 125L range. Their hot water systems balance quality construction with affordable pricing, backed by good warranty coverage.

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What is a 125L Hot Water System?

A 125L hot water system is a mid-sized water heater that stores and heats 125 litres of water. These hot water systems are designed to meet the hot water needs of small families or households with 2-3 people. The hot water system maintains water at a safe temperature of 50°C, ready for use in showers, washing up, and laundry.

The 125-litre capacity means these hot water systems can handle multiple tasks at once, like running a shower while the dishwasher is going. This size strikes a good balance between having enough hot water for daily needs without wasting energy heating more water than needed.

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What is the Average Cost of a 125L Hot Water System?

The price of a 125L hot water system varies based on the type you choose:

• Electric Systems: 

Base model: $750-900 

Premium model: $900-1,200

• Gas Systems: 

Natural gas: $900-1,300 

LPG model: $950-1,350

• Solar Systems: 

Flat panel: $3,500-4,500 

Evacuated tube: $4,000-5,000

• Heat Pump Systems: 

Standard model: $2,800-3,500 

Premium model: $3,500-4,000

These prices change based on brand choice and extra features like smart controls or better insulation. Premium brands like Rheem and Rinnai often cost more but include better warranties and higher efficiency ratings.

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Why Consider a 125L Hot Water System?

A 125L hot water system is perfect for small Brisbane homes and units. This size works well for young families, couples, or shared houses with 2-3 people. The hot water system provides enough hot water for regular daily activities without excessive energy use.

Small households benefit from lower running costs as the hot water system only heats the amount of water you need. The compact size makes it easier to find installation space, whether indoors or outdoors.

The 125L capacity matches well with modern water-efficient appliances and fixtures. This means you get the right amount of hot water for your needs while keeping energy bills down.

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For Whom is a 125L Hot Water System Suitable?

A 125L hot water system works best for smaller households in Brisbane. This sized hot water system suits homes that use between 100 to 150 litres of hot water each day. This amount typically covers 2-3 showers, a load of washing, and regular kitchen use.

The hot water system is well-matched to: Small families with one child Professional couples Single-parent households Two-person share houses Small home offices with a bathroom Granny flats or secondary dwellings

Daily hot water usage that fits a 125L hot water system includes: 

• Morning routine: 2-3 showers (50-75L) 
• Dishwashing: 1-2 cycles (15-30L) 
• Laundry: 1 warm wash (20-30L) 
• General use: Kitchen and bathroom (15-25L)

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What Family Size Suits a 125L Hot Water System?

A 125L hot water system is best suited for families of 2-3 people who have standard water usage habits. This family size typically uses around 40-50 litres of hot water per person each day.

For a family this size, the daily schedule might include: Parents getting ready for work (2 showers) One child's bath or shower Morning and evening kitchen use One load of washing

The hot water system can support this level of use while maintaining enough hot water throughout the day. Families with teenagers or those who take long showers might find a 125L hot water system too small for their needs.

For larger families of 4 or more people, we recommend upgrading to a bigger hot water system as a 125L unit won't provide enough hot water for everyone's daily needs.

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What is the Typical Use for a 125L Hot Water System?

A 125L hot water system is ideally suited for homes with 1-2 bathrooms in Brisbane. These hot water systems work well in townhouses, small family homes, and modern apartments where space might be limited but hot water needs are still important.

In residential settings, a 125L hot water system handles the hot water needs for: Single bathroom homes with a kitchen Two bathroom units with moderate usage Small rental properties Granny flats with ensuite and kitchenette Home offices with bathroom facilities Small holiday units

The hot water system supports typical daily activities like: Morning and evening showers Kitchen cleanup and dishwashing Regular laundry loads Basic cleaning tasks Hand washing and personal hygiene

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How Long Does it Take to Heat Water in a 125L System?

Electric Systems: 

• Initial heat-up time: 2-3 hours from cold 
• Recovery time after use: 1-1.5 hours 
• Power output: 3.6kW standard element

Gas Systems: 

• Initial heat-up time: 1-1.5 hours from cold 
• Recovery time after use: 30-45 minutes 
• First-hour delivery rate: 180L per hour

Solar Systems: 

• Initial heat-up time: 4-6 hours (sunny day) 
• Backup boost time: 2 hours (electric booster) 
• Daily recovery: Depends on available sunlight

Several factors affect these heating times:

• Incoming water temperature (colder water takes longer) 
• Ambient air temperature Age and condition of the hot water system 
• Mineral build-up in the tank 
• Quality of insulation Power supply voltage stability 
• Water pressure levels

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What Are the Benefits of a 125L Hot Water System?

A 125L hot water system offers several advantages that make it a practical choice for Brisbane homes. These benefits focus on efficiency, cost, and practicality for the right-sized household.

• The hot water system is energy efficient for smaller households because it only heats the amount of water you'll actually use. This means you won't waste power heating extra water that sits unused in the tank.
• The compact size makes installation easier in tight spaces. Most 125L hot water systems fit well in standard hot water hot water system spaces, making them perfect for replacing older units.
• For growing families, these systems provide an affordable entry point. They offer good hot water supply without the higher purchase price of larger hot water systems.
• These hot water systems cost less to run than bigger models. Your energy bills stay lower because you're only heating 125 litres instead of 250 or more litres of water.

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What Are the Limitations of a 125L Hot Water System?

While 125L hot water systems work well for many homes, they do have some limitations that are important to understand before making your choice.

• The main limitation is hot water capacity. If everyone in the house needs a shower within a short time, you might run out of hot water before everyone's finished.
• Recovery time can be an issue. Once the hot water is used up, you'll need to wait for the hot water system to heat more water before it's available again.
• These hot water systems might not handle multiple hot water uses at once. Running the dishwasher while someone's in the shower could use up the available hot water quickly.
• For homes with more than three people, a 125L hot water system might be too small. Larger families often find they need to carefully schedule their hot water use to avoid running out.
• The smaller capacity might not suit homes with large spa baths or multiple bathrooms in use at the same time.

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What Are the Alternatives of a 125L Hot Water System?

Hot water systems come in different sizes to match various household needs. When a 125L hot water system isn't the right fit, several alternatives are available that might better suit your requirements.

• Small Capacity Systems: 50L hot water systems work well for: Single person apartments Small office kitchens Granny flat bathrooms
• 80L systems suit: Studio apartments Small holiday units Single bathroom situations
• Medium Capacity Systems: 160L hot water systems handle: 3-4 person households Homes with 2 bathrooms Regular laundry needs
• 250L hot water systems support: 4-5 person families Multiple bathroom homes High hot water usage
• Large Capacity Systems: 315L hot water systems work for: Large families (5-6 people) Homes with 3+ bathrooms Heavy hot water demands
• 400L systems suit: Extended families Shared housing Multi-generational homes

Each size offers different benefits depending on your household's specific needs. The right size depends on your daily hot water usage, the number of people in your home, and how many hot water outlets you use at once.

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125L vs 250L Hot Water System Comparison

A 125L hot water system heats and stores 125 litres of water, ideal for 2-3 people with moderate water usage. The 250L hot water system doubles this capacity, storing 250 litres of hot water for larger households.

The 125L hot water system works best when: You have a small family of 2-3 people Your home has 1-2 bathrooms Daily hot water use is moderate Space is limited for installation

The 250L hot water system is better suited when: Your household has 4-5 people You have multiple bathrooms Morning routines overlap You run several hot water appliances at once

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125L vs 50L Hot Water System Comparison

A 125L hot water system provides steady hot water supply for small households, while a 50L system is designed for minimal hot water needs. These hot water systems serve very different purposes.

The 125L hot water system is ideal when: You need hot water for daily showers Regular kitchen and laundry use Small family living Multiple hot water uses throughout the day

The 50L hot water system works best for: Single person apartments Basic kitchen-only needs Backup hot water supply Small office kitchenettes

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125L vs 315L Hot Water System Comparison

The 125L hot water system offers moderate hot water storage for small households, while the 315L hot water system is built for large families with high hot water demands.

The 125L hot water system suits: Small families or couples Standard daily hot water use Homes with limited installation space Budget-conscious households

The 315L hot water system is better when: You have 5+ people at home Multiple bathrooms are in use High-volume hot water is needed Large family morning routines

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