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Hot Water Systems Repairs & Installations


My Xpert Plumbers specializes in repairing and replacing hot water systems of all brands and models in Melbourne homes. Our  Service ensures fast and reliable assistance, backed by our 100% Customer Satisfaction Guarantee. If you're not satisfied, we'll fix it at no cost to you.


Nobody enjoys a cold shower! When your hot water system in Melbourne unexpectedly falters, prompt action is essential. At My Xpert Plumbers, we provide emergency plumbing services 24/7 to ensure same-day hot water system repair or replacement.

Let our dedicated hot water plumbing specialists handle all your hot water and gas plumbing requirements. We are proficient in servicing, replacing, and repairing various systems, including:

  • Gas hot water service systems

  • Electric hot water systems

  • Heat pump hot water systems

  • Solar hot water systems

  • Storage hot water systems

  • Instantaneous hot water systems


Rest assured, we're here to ensure your hot water needs are met efficiently and effectively.

Hot Water System Repairs

Pilot light out? Pressure relief valve leaking? Cold water? Don't worry, we've got you covered.

Hot Water Service Replacement

Gas, electric, or solar - we offer same-day service

The types of hot water systems we service include: 

  • Gas storage hot water systems

  • Electric storage hot water systems

  • Continuous flow hot water systems

  • Heat pump hot water systems

  • Solar hot water systems

We're experienced with a variety of hot water system brands, including:

  • Thermann

  • Rinnai

  • Vulcan

  • Rheem

  • Everhot

  • Aquamax

  • Bosch

  • Dux

  • Emerald

Gas Storage Hot Water Systems

Enjoy the convenience of instant hot water at the turn of a tap. Modern gas hot water systems are highly efficient, boasting 3, 4, and 5-star energy ratings, making them a cost-effective choice for your hot water needs. Gas storage and electric storage hot water systems store ample hot water in insulated tanks, ready for immediate use.


Gas-fired systems utilize a burner to heat water in the cylinder to your desired temperature. The burner, located externally at the base of the unit, is controlled by a Uni-Control valve accessible through the service hatch.


Why Choose Gas Hot Water Systems?


  • Energy-efficient models available

  • Safe operation

  • Cost-effective installation

  • Mains pressure at your faucets

  • Indoor and outdoor options

  • Lower greenhouse gas emissions compared to electric models


Limitations of Gas Storage Systems:


  • Limited hot water supply during prolonged use

  • Bulky unit size

  • Radiant heat loss from storage tanks

  • Lifespan typically ranges from 5 to 15 years, depending on the model.

gas storage hot water

Electric Storage Hot Water Systems

Electric storage hot water systems function similarly to natural gas storage systems, with cold water entering the tank to be heated and distributed when needed. However, the heating process differs as electric models use internal heating elements immersed in the water.

These systems are equipped with a thermostat to regulate water temperature, ensuring safety by releasing water through a pressure relief valve if pressure or temperature becomes excessive. Off-peak or economy tariff connections offer additional cost savings for users.


Advantages of Electric Storage Hot Water Systems:


  • Cost-effective installation

  • Safe operation

  • Efficient energy use

  • Flexible indoor or outdoor installation options

  • Consistent mains pressure at faucets

  • Compact designs suitable for small spaces like apartments or office kitchens


Limitations of Electric Storage Hot Water Systems:


  • High operating costs on continuous tariffs

  • Large and bulky units

  • Limited hot water supply during extended use

  • Slow heating time recovery

  • Greater greenhouse gas emissions compared to gas systems

Hot water

Continuous Hot Water Systems

Continuous flow hot water systems heat water on-demand, eliminating the need for a storage tank. When a hot tap is turned on, these gas-powered heaters quickly heat the water as it passes over a burner, providing an endless supply of hot water. They are highly energy efficient, as there is no heat loss from a tank and water is only heated when needed. These units operate only when the hot tap is turned on, delivering continuous hot water for as long as needed.


Advantages of Continuous Flow Hot Water Systems:


  • Never run out of hot water

  • Small and wall-mountable

  • Energy efficient

  • Precise temperature control

  • Longer lifespan compared to storage units


Limitations of Continuous Flow Hot Water Systems:


  • Higher installation costs compared to storage systems

  • Multiple units may be necessary for large houses

  • Installation proximity to hot water outlet is important

  • Flow rates are limited by unit size

  • Brief delay in hot water delivery after turning on the tap

Rinnai Gas hot water system

Heat Pump Hot Water Systems

Heat pump hot water systems operate by transferring heat from the surrounding environment into the water inside the heater, functioning akin to a refrigerator in reverse. This process occurs through a heat exchange system, where outside air is drawn in and warmed, converting a refrigerant from liquid to gas. The resulting heat is then transferred to a water storage tank via a heat exchanger.


Advantages of Heat Pump Water Heaters:


  • Long-term cost savings

  • Energy efficiency

  • Environmental friendliness with reduced greenhouse gas emissions

  • Effective even in lower temperatures

  • No need for additional solar panels, inverters, or batteries

  • Easy installation and connection to existing hot water plumbing


Limitations of Heat Pump Water Heaters:


  • Not suitable for extremely cold climates

  • Boosters may be necessary in cold climates, adding to costs

  • Reliability issues if improperly installed or used

  • Higher initial purchase and installation costs compared to conventional water heaters

Heat Pump

Solar Hot Water Systems

Solar hot water systems utilize the sun's energy to provide hot water, offering low operating costs. Mains pressure cold water flows through solar panels or evacuated tubes on the roof, where they absorb solar heat efficiently. The heated water is then stored in a tank, with a cycling process ensuring uniform heating. If sunlight is insufficient, an electric or gas booster supplements heat. Government rebates may offset installation costs.


Advantages of Solar Hot Water Systems:

  • Utilize free solar energy to reduce energy costs

  • Ideal for sunny climates

  • Eligible for government rebates, reducing initial costs

  • Lower monthly electricity bills

  • Close coupled models save space on the roof

  • Options for gas or electric boosters, with gas offering additional efficiency


Limitations of Solar Hot Water Systems:


  • Higher upfront costs for equipment and installation

  • Tanks occupy more space than tankless units

  • Not suitable for shaded roofs

  • Reduced effectiveness if shaded by trees or tall buildings in the future

  • Unsuitable for homes lacking sufficient roof space

  • Requires outdoor installation, with more equipment necessitating more maintenance.

solar hot water

 Hot Water Systems Repairs or Replacements 

If you're experiencing issues like running out of hot water, no hot water, or water leakage around your hot water system, it may be time for repair or replacement.


Possible reasons for these issues include:

  • Leaking storage cylinder

  • Faulty temperature relief valve

  • Failed thermocouple

  • Faulty electric heating element

  • Faulty thermostat

  • Blocked or restricted tempering valve

  • Faulty uni-control valve

  • Undersized hot water system

  • Electricity or gas failure


At My Xpert Plumbers, we offer comprehensive hot water system repairs, replacements, and maintenance at fair prices. Our qualified specialists will inspect your system and provide advice on repair options and associated costs. If replacement is deemed necessary, we'll present you with suitable options tailored to your needs. Additionally, we'll ensure your installation meets current Australian Standards by identifying any necessary corrective actions.


Hot Water System Maintenance

Regular maintenance of your home's hot water system is essential for ensuring its longevity and efficiency. By performing the following manufacturer-recommended tasks during our visit, you can prevent costly breakdowns and prolong the life of your system:


  • Cleaning the burner train and pilot light

  • Monitoring the temperature and pressure of the hot water system

  • Inspecting the sacrificial anode and replacing if necessary

  • Flushing out the cylinder to remove any sludge buildup

  • Assessing if a tempering valve installation is necessary

  • Determining if a replacement gas isolation valve is needed

  • Advising on replacement of the PTR valve if required

  • Commissioning the gas appliance upon completion and making any necessary adjustments.


At My Xpert Plumbers, we prioritize thorough maintenance to ensure your hot water system operates efficiently and reliably for years to come.

Hot Water System Installation

When it comes to hot water system installation, our professional plumbers excel in both removing the old unit and installing the new one seamlessly. They take care to clean up thoroughly, disposing of all debris, including the old hot water system, leaving your property in better condition than they found it. Our team specializes in hot water system replacement, ensuring a smooth and efficient process from start to finish.

Why choose a professional plumber for your Hot Water Service needs?

  • Hot Water System Safety: Hot water systems contain hazardous elements such as gas, flames, steam, pressure, water, and heat. Professional plumbers are trained to handle these safely.


  • Expertise in Installation: Professional plumbers have the knowledge and experience to remove old units and install new ones efficiently and effectively.


  • Thorough Cleanup: Plumbers ensure that your property is left clean and tidy, disposing of all debris, including the old hot water system.


  • Availability: Professional plumbers like us at My Xpert Plumbers are available round-the-clock, ensuring prompt emergency assistance whenever you need it.


  • Licensed Professionals: Our team consists of licensed plumbers, guaranteeing quality workmanship and adherence to safety standards.

Looking for a Same Day Hot Water Service Plumber in Melbourne?

My Xpert Plumbers specializes in working with all leading brands of hot water systems, including Rheem, Vulcan, Aquamax, Thermann, Rinnai, Bosch, Dux, Apricus, Stiebel Altron, and more. Our expert team will assist you in matching the perfect Hot Water Unit to the specific needs of your home.

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  • Are there any specific regulations for plumbing installations in Melbourne?
    Yes, Melbourne follows the Plumbing Code of Australia. Hiring licensed plumbers familiar with local regulations is crucial to ensure compliance with all standards.
  • Is it necessary to have a backflow prevention device in Melbourne?
    Melbourne requires backflow prevention devices to safeguard the water supply. Ensure your property has the required backflow prevention measures, and schedule regular inspections.
  • How do I choose the right water heater for my Melbourne home?
    Consider your household size, energy efficiency, and fuel source options. Consult MY XPERT PLUMBERS to determine the most suitable water heater for your needs and budget.
  • Can I perform DIY plumbing repairs in Melbourne?
    Minor repairs like fixing a leaky faucet or a clogged drain can be handled DIY, but for major issues or if you're unsure, it's best to hire a licensed plumber in Melbourne to ensure compliance with local regulations.
  • How can I prepare my plumbing for Melbourne's hot summers?
    Look out for unexplained increases in water bills, damp or discolored walls, and mold growth. If you notice these signs, contact a plumber in Melbourne to investigate the issue.Insulate pipes to prevent water from heating up excessively. Check and maintain your water heater, and consider installing pressure-reducing valves to protect the plumbing system during high temperatures. For more information, contact MY XPERT PLUMBERS.
  • How can I detect a water leak in my Melbourne home?
    Check for unusually high water bills, mold growth, or unexplained wet spots. If you suspect a leak but can't find it, consider hiring a professional plumber who can use specialized equipment to locate hidden leaks.
  • Can I use chemical drain cleaners regularly?
    Using chemical drain cleaners regularly is not advisable, as they can damage pipes over time. For persistent clogs, consult a plumber who can identify and address the root cause.
  • Is it necessary to hire a licensed plumber for all plumbing work?
    For significant plumbing work, hiring a licensed plumber is highly recommended to ensure the work complies with local building codes. A homeowner can often handle the task of minor repairs if they have the necessary skills and knowledge.
  • How can I prevent frozen pipes from freezing during winter in Melbourne?
    Insulate your pipes, especially those exposed to cold areas. Let faucets drip during freezing nights to keep water flowing. Disconnect and drain outdoor hoses, and consider insulating outdoor faucets.
  • How can I maintain my hot water system in Melbourne?
    Regularly flush the tank to remove sediment, check for leaks, and ensure the pressure relief valve is functioning. If you encounter issues, consult a professional plumber to assess and repair the hot water system.
  • What should I do in case of a burst pipe?
    Turn off the water supply at the main shut-off valve, then call an emergency plumber immediately. While waiting for the plumber, try to contain the water using buckets or towels to minimize damage.
  • What is the cheapest to run?
    In general, if gas is accessible, a gas hot water system typically offers the most cost-effective operation, as its usage doesn't impact the electricity bill. Alternatively, if gas isn't an option, electric hot water systems serve as a close competitor, heating water only when needed. For larger households, a tank storage system, which stores hot water, is often the most efficient choice. However, if your hot water usage is sporadic or low, a system that heats water on demand may be more suitable. Our specialists can collaborate with you to identify the optimal hot water system for your specific household and circumstances. With numerous factors to consider and a variety of available systems, we can determine the solution that best suits your long-term needs and preferences.
  • How much does it cost to replace hot water units?
    The cost of replacing your hot water unit can vary depending on several factors, including the type of system (e.g., gas, solar), brand, and specific requirements of your installation. At My Xpert Plumbers, we offer transparent pricing based on the type or brand of hot water system you're considering. Our friendly team is always ready to provide you with a free quote, ensuring you can make an informed decision and stay within your budget for your hot water needs.
  • Which system is more efficient?
    There are four primary types of hot water heaters and systems available. Solar boosted systems, which are augmented by either gas or electricity, derive the majority of their energy from the sun, making them the most efficient option. Households utilizing this type of hot water heating may qualify for government rebates (contact our team for further details). Gas hot water units of good quality represent the next viable choice and can be particularly suitable for larger households. If neither gas nor solar options are viable, heat pump or electric tank systems offer reliable and consistent hot water supply as alternatives.
  • How does a water heater work?
    All hot water systems require a water heater to heat the water, but the mechanisms vary depending on the type of hot water unit. In tankless units or gas hot water systems, air is drawn in, the gas valve is opened, and a flame is ignited to heat the water. On the other hand, in tank storage water heaters, hot water is continuously delivered once you turn on the tap. The water is heated by a heating mechanism located at the bottom of the tank.
  • What is difference between gas hot water systems and electric hot water units?
    Natural gas is an instantaneous flow that works with time efficiency a consistent ability to capture heat. This type of water heater works by a temperature gauge monitoring the water within the insulated tank and heating with a flame once cooled. Gas can be cheaper to run and replace than an electric water heater but can have a more expensive installation process and be less environmentally efficient, with the water maintaining continuous flow hot water. Electric unit systems are available for more diverse use and are high efficiency, with options for large or small usage, and will only heat the water when needed. Electric systems are perfect for a single or double-person household, but large families may struggle with waiting for the water to heat up after continuous use. Electric systems don’t need a large water tank or big storage systems and are suited for smaller spaces. Unlike gas, these systems will impact your electricity bill. The cost of maintaining this type of unit is higher than that of gas.
  • Do hot water need servicing?
    Hot water systems typically have a lifespan of up to 12 years, but regular servicing is crucial to prevent breakdowns, especially at inconvenient times. Non-serviced systems may develop issues such as increased noise during operation, inconsistent water heating, or eventual breakdowns, necessitating larger repairs in the future. Having a qualified plumber inspect your system, including the storage tank, temperature, and pressure valve, annually can help you avoid such issues and save time and money in the long term. Regular servicing ensures that your hot water system operates efficiently and reliably throughout its lifespan.
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