Hot Water System: Electric Hot Water Systems Supplied and Installed from $799
Choose the Best Electric Hot Water System for Your Home: A Buyer's Guide
Are you in the market for a new hot water system? Find out which type suits your home and budget best, and what you should consider before making your choice. Our comprehensive guide will cover everything from the energy efficiency and running costs to installation and maintenance, helping you navigate the essentials of electric hot water systems without the fluff.
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Electric hot water systems differ in types (storage and continuous flow), sizes, and energy efficiencies, requiring consumers to evaluate factors such as household size, water usage habits, and desired energy efficiency.
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Proper sizing and selection of electric hot water systems based on a household’s hot water needs can enhance cost-effectiveness and prevent unnecessary energy expenditure.
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Maintenance is essential for the longevity and efficient operation of electric hot water systems, and there are financial incentives available to offset the installation costs of energy-efficient models.
Understanding Electric Hot Water Systems
Electric hot water systems are more than just a source of hot water; they're an integration of elements working together to transform electricity into a comforting hot shower or a steamy dishwasher cycle. Typically, they include a tank and a heating element, with variations like single and twin element systems.
Grasping these basics is key when making informed decisions about the best hot water system for your home, ensuring you choose the right hot water system.
What are Electric Hot Water Systems?
Electric hot water systems are a staple in many Australian households, known for their reliability and ease of use. These systems utilize electricity to heat water, providing a steady supply for various household needs. There are two main types: storage-based and instantaneous. Storage-based systems keep hot water in a tank, ready for use at any time, while instantaneous systems, also known as electric instantaneous water heaters, heat water on-demand as it flows through the unit. Although electric hot water systems can be more expensive to run compared to other types, they are often more affordable to purchase and install, making them a popular choice for many homeowners.
The Heating Process Explained
The secret to the warm water from your tap is the heating process of the electric hot water system. The heart of this process is the heating element, usually made from copper or a nickel-chrome alloy known as ‘Incoloy'. When electricity passes through this inner wire, it heats up, transferring this heat to the water through friction and convection.
A thermostat keeps things in check, sensing the water temperature and regulating the heating element to maintain the desired temperature.
Components Breakdown
The heart of an electric hot water system includes:
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The storage tank, often made of corrosion-resistant materials like stainless steel, vitreous enamel, or copper
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The heating elements, typically located at the bottom of the tank, which heat the water through convection
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The thermostat, which ensures water stays at the desired temperature
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The temperature and pressure relief valve, which serves as a safety measure to prevent overheating or reaching dangerous pressure levels
These components work together to provide hot water for your needs.
The system also includes electrical wiring and plumbing connections to interface with the home's electrical supply and plumbing.
Types of Electric Hot Water Systems
There are primarily two types of electric hot water systems: storage and continuous. Storage systems, being the most common type, hold a reservoir of hot water in a tank, making them a great choice for households with a high demand for hot water.
On the other hand, a continuous flow system, also known as a tankless system, heats water on demand without the energy losses associated with storage tanks. These systems are highly efficient, offering significant energy savings, sophisticated temperature controls, and the advantage of never running out of hot water, making them suitable for simultaneous demands across multiple outlets.
Storage Systems
Storage hot water systems, favored in Australia, cater to a diverse range of household needs. These systems feature insulated tanks to minimize heat loss and can be installed both indoors and outdoors. Gas storage systems, however, experience significant heat loss, especially in cold climates, making them inefficient. Careful consideration of installation and insulation is crucial to prevent wasted energy.
Brands like AquaMax offer electric and gas storage hot water systems, including premium stainless steel options, that are highly rated in all categories.
Continuous Flow Units
Continuous flow electric hot water systems have the following benefits:
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They eliminate the need for a storage tank
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They provide an endless supply of hot water
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They are energy-efficient as they only heat water on demand, leading to less energy consumption
However, there may be a short delay in heating when multiple outlets are used simultaneously, which is generally the case in heated discussions.
Compact and versatile, they can be wall-mounted, preserving the aesthetics of a home.
Alternative Hot Water Systems
As energy efficiency and environmental concerns become more prominent, alternative hot water systems are gaining traction. These systems offer innovative ways to heat water while reducing energy consumption and greenhouse gas emissions. Some popular alternatives include:
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Solar Hot Water Systems: Utilizing solar panels to harness energy from the sun, these systems significantly cut down on electricity or gas usage.
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Heat Pump Water Heaters: These systems extract heat from the air to warm the water, offering a highly efficient solution that reduces energy consumption.
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Gas Hot Water Systems: Using natural gas or LPG, these systems provide a more energy-efficient alternative to traditional electric hot water systems.
Solar Hot Water Systems
Solar hot water systems are an excellent choice for those looking to minimize their environmental footprint. By using solar panels to capture and convert sunlight into heat, these systems can meet up to 90% of a household’s hot water needs. While the initial investment for solar hot water systems can be higher, the long-term savings on energy bills and the reduction in greenhouse gas emissions make them a worthwhile consideration. These systems can be installed on rooftops or at ground level, depending on the available space and sunlight exposure.
Heat Pump Water Heaters
Heat pump water heaters represent a cutting-edge solution for energy-efficient hot water. By drawing heat from the surrounding air, these systems use significantly less electricity compared to conventional electric hot water systems. They can be installed both indoors and outdoors, providing flexibility for different home layouts. Although the upfront cost of heat pump water heaters can be higher, the substantial savings on energy bills and the reduction in greenhouse gas emissions make them an attractive option for eco-conscious homeowners.
Selecting the Right Size and Capacity
Selecting the best size and capacity for your electric hot water system demands a thorough assessment. Factors to consider include:
An oversized system can lead to higher energy bills due to excess capacity, making the selection of the right size crucial for cost efficiency.
Electric hot water systems come in a range of tank sizes to accommodate different household needs, making them versatile for various settings.
Household Size Considerations
The capacity of your electric hot water system can greatly be determined by the number of individuals in your household. For instance, a household of 1-3 people typically requires an 80L electric hot water tank for low peak usage or a 125L tank for high peak usage.
A medium-sized household of 3-6 people should consider a 160L tank for low peak usage scenarios or a 315L tank for high peak usage.
Larger households with 5-8 members will require a more substantial capacity, with a 250L tank recommended for low peak usage and a 400L tank for high peak usage periods.
Evaluating Your Hot Water Needs
Comprehending your daily hot water consumption can assist in identifying the most appropriate capacity for your electric hot water system. On average, each person uses about 50 liters of hot water per day, a key factor in assessing the capacity requirement. Consider the presence of appliances that utilize hot water, such as dishwashers and washing machines, as well as patterns indicating the time of day when hot water is most used.
Energy Efficiency and Running Costs
Beyond being convenient, electric hot water systems are also energy-efficient. Energy-efficient systems can help reduce greenhouse gas emissions. Certain models, like heat pump water heaters, use only about 30% of the energy compared to conventional electric water heaters. Furthermore, pairing electric hot water systems with solar hot water systems can reduce energy bills and reliance on the electric grid.
To further reduce running costs, consider taking advantage of off-peak tariffs during the off peak period.
Understanding Energy Ratings
The efficiency of electric hot water systems is largely determined by their energy ratings. Heat pumps, which utilize a refrigeration cycle to extract heat from the environment, significantly lower energy consumption compared to conventional methods, making them highly energy-efficient. These systems adhere to the Minimum Energy Performance Standards (MEPS) outlined in standards such as AS/NZS 4692.1:2005 and AS/NZS 4692.2:2005.
Continuous flow electric hot water systems can achieve energy ratings up to 6 or 7 stars, making them significantly more energy-efficient than traditional storage systems.
Reducing Running Costs
Numerous methods exist to lower the operational costs of your electric hot water system. Systems with smart controls and timers can be programmed to operate during off-peak energy periods, leading to savings on the energy bill.
Additionally, adopting water-saving habits, such as taking shorter showers and washing clothes in cold water, can significantly reduce hot water usage and energy costs.
Insulation and Heat Loss Prevention
Proper insulation and heat loss prevention are vital for maintaining the efficiency of any hot water system. Insulating the storage tank and pipes helps to minimize heat loss, ensuring that the water stays hot for longer periods. Simple measures like pipe lagging and tank wraps can make a significant difference. Regular maintenance and inspections can also help identify and address any issues related to heat loss. By reducing heat loss, homeowners can save on energy costs and extend the lifespan of their hot water system, making it a smart investment in the long run.
By understanding the various types of hot water systems and their benefits, you can make an informed decision that best suits your household’s needs and contributes to energy efficiency. Whether you opt for a traditional electric hot water system or explore alternative options like solar or heat pump water heaters, the key is to choose a system that aligns with your usage patterns and environmental goals.
Installation Considerations
With a simpler and cheaper installation process than gas systems, electric hot water systems present a cost-effective option for homeowners. However, there are several considerations to keep in mind, including selecting an appropriate location and ensuring proper electrical safety.
Choosing the Right Location
The efficiency of the electric hot water system can be affected by its location. For instance, storage electric hot water systems installed in sunny locations can reduce heat loss and optimize performance. However, there are also safety considerations to bear in mind, such as ensuring there is a minimum clearance from combustible materials and access doors or windows.
Electrical Connection and Safety
During the installation of an electric hot water system, the importance of electrical connections and safety cannot be overstated. The system must be installed according to manufacturer specifications and comply with Australian safety standards. A licensed electrician should handle the installation to ensure proper electrical connections and adherence to safety standards.
Advantages of Electric Hot Water Systems
Several benefits come with electric hot water systems. Here are some of them:
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Low up-front cost compared to other types like gas or solar
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Wide price range, making them suitable for various financial situations
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Consistent performance and reliability, ensuring a dependable hot water supply
Convenience and Availability
The convenience of electric hot water systems is a significant advantage. They leverage the widespread availability of electricity, which most homes and buildings already have access to. This omnipresence of electricity in residential and commercial infrastructure eliminates the need for alternative fuel sources, adding to the convenience of using electric hot water systems.
Simplicity and Reliability
Their simple design and reliable performance make electric hot water systems a favorite among homeowners. These systems are simpler than those involving more complex components, using a straightforward electric-powered element to heat the water. This reliable heating mechanism leads to consistent performance and low maintenance requirements.
Trusted Brands and Models
Many reputable brands and models of electric hot water systems are noteworthy. For instance, Rheem is known for delivering a satisfying hot water experience along with competitive pricing and comprehensive after-sale support in Australia.
The Rheem 250L Electric Hot Water System, in particular, is lauded for its excellent value for investment and easy, hassle-free installation process.
Brand Reputation and Quality
Renowned brands like Thermann, Rinnai, Rheem, AquaMax, and Bosch are recognized for their superior quality and reliability in electric hot water systems. These brands offer warranties on their products, typically ranging from 5 to 10 years, reflecting their confidence in product reliability.
Moreover, these brands are recognized for their excellence in various aspects, from energy efficiency to customer satisfaction.
Model Comparisons
Drawing comparisons among varied models of electric hot water systems can shed light on their features and performance. For instance, Rheem Stellar hot water units are known for their 5-Star energy efficiency, whereas Rinnai's Hotflo Electric series offers a variety of capacities with features like ThermaPro insulation for better heat retention.
On the other hand, AquaMax's Stainless Steel range is designed for high-demand scenarios, and Thermann Continuous flow hot water unit is known for its dependable performance.
Financial Incentives and Rebates
Are you aware that government incentives exist to promote the use of energy-efficient electric hot water systems? Small-scale technology certificates (STCs) and other government rebates can help reduce the upfront costs of eligible systems. Moreover, manufacturers may offer special financing programs, further alleviating the initial investment for consumers.
Identifying Eligible Products
Identifying eligible electric hot water systems is crucial to leveraging these financial incentives. These are often listed on a government or program-specific product list, which determines qualification for rebates.
Energy-efficient hot water systems such as solar and heat pump models could qualify for small-scale technology certificates (STCs) and government rebates, providing benefits for their installation. These incentives aim to encourage the use of environmentally friendly technologies.
How to Apply for Rebates
The rebate application process requires the following steps:
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Secure a quote from an authorized retailer.
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Submit an application via the official rebate portal.
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Confirm installation after receiving eligibility confirmation.
In the case of an emergency requiring immediate hot water system installation, the rebate application can be submitted after the fact. However, it's crucial that all eligibility criteria are met to obtain the rebate.
Maintenance Tips to Extend Lifespan
Efficient operation and prevention of minor issues turning into costly problems can be ensured through proper maintenance of your electric hot water system. Regular servicing is recommended to ensure all key components are operating correctly. Additionally, the lifespan of a hot water storage tank can be significantly impacted by the quality of the water it contains and the frequency and quality of maintenance performed.
Regular Servicing Schedule
To maintain efficiency and safety, it's advisable to have your electric hot water system professionally serviced at least biennially. During regular servicing, the heating element and thermostat should be inspected to ensure they are operating correctly and replaced if necessary.
DIY Maintenance Checks
You can also conduct a few maintenance checks on your own to keep your electric hot water system functioning effectively. Checking the temperature pressure relief (TPR) valve and the tempering valve every six months can prevent potential unit explosion risks.
Additionally, annually flushing the tank removes sediment, improves heating efficiency, and extends the water system's lifespan.
From understanding the basics of electric hot water systems to exploring the benefits and features of various models, we've covered a lot of ground in this guide. The key takeaway is that electric hot water systems offer a combination of convenience, reliability, and energy efficiency, providing a dependable hot water supply for your home. With the right knowledge, you can make an informed decision and choose a system that meets your needs and optimizes your energy usage.
Are electric hot water systems expensive to run?
Electric hot water systems are generally cheaper to install but can be more expensive to run over the long term due to the higher cost of electricity compared to natural gas. It's important to consider the ongoing running costs when choosing a hot water system.
Is there an instant electric hot water system?
Yes, an instant electric hot water system heats water on-demand as it flows through the system, providing an efficient and convenient solution for residential and commercial use.
How much does an electric water heater system cost?
The cost of an electric water heater system varies depending on the size and model you choose. It is recommended to obtain quotes from different suppliers to find the best price for your needs.
What is the difference between a storage system and a continuous flow unit?
The main difference between a storage system and a continuous flow unit is that a storage system holds hot water in a tank, while a continuous flow unit heats water as it flows through the unit, without the need for a storage tank.
How can I reduce the running costs of my electric hot water system?
To reduce the running costs of your electric hot water system, consider using systems with smart controls and timers, adopting water-saving habits, and taking advantage of off-peak tariffs. This can lead to significant savings on your energy bills.
