Everything you need to know about electric hot water systems.
Electric hot water systems are a popular and affordable choice for water heater in Australian homes and businesses and advancements in technology have made them more energy-efficient and environmentally friendly than ever.
Below, we cover:
- How do electric hot water systems work?
- The benefits of electric hot water systems
- Choosing the best electric hot water system
How do electric hot water heating systems work?
The two types of electric hot water systems include:
- Electric storage water heaters
- Electric instantaneous hot water systems (continuous flow or tankless)
Electric storage water heaters
Storage systems heat and store water in an insulated tank, ready for use when needed.
- The heating element that warms the water.
- The thermostat to maintain the desired temperature, typically around 60°C.
- A pressure relief valve and an overflow pipe to ensure safe operation.
- When water is heated, it rises to the top of the tank, making it available on demand.
Electric storage tanks come in a range of sizes from 25 to 400 litres, making them suitable for the hot water needs of all households.
Electric water heaters can use mains pressure allowing multiple taps to run simultaneously throughout the property.
Instantaneous electric water heaters
In contrast to storage systems, instantaneous systems heat water only when you turn on a tap. Because there is no storage tank, these systems are compact and highly efficient, providing hot water on demand without the energy losses associated with storing pre-heated water.
Unlike traditional storage water heaters, instantaneous systems heat water only when it’s needed making them an energy-efficient and cost-effective option for many households and businesses.
- Water flow activation: When you turn on a hot water tap, cold water flows through the unit.
- The heating element is engaged: The system’s powerful electric heating elements activate and heat the water as it passes through.
- A continuous hot water supply: Hot water is delivered immediately, as long as the tap remains on, without relying on a storage tank. This on-demand mechanism eliminates the need for storing heated water, reducing energy usage and making these systems a highly efficient choice.
More about instantaneous electric water heaters »
The benefits of electric hot water systems
Reliable and ease of use
Electric water heaters provide consistent hot water temperatures as long as electricity is available.
Energy efficient and can be integrated with rooftop solar
Pairing an electric system with rooftop solar panels can significantly reduce running costs, especially if water is heated during peak solar generation hours.
Modern energy-saving features
Newer models often include enhanced insulation and smart energy-saving technologies, reducing electricity consumption.
Easy installation and maintenance
Electric systems are simpler to install compared to gas systems and can be placed inside or outside. Their straightforward design makes maintenance and repairs less complicated.
Affordable upfront costs
Electric water heaters are typically more budget-friendly upfront than gas, heat pumps or solar hot water systems.
Choosing the best electric hot water heating system
Choosing the right electric hot water system for your home requires careful planning and we’re here to assist you in making the right decision. Things to consider include:
Household size and hot water usage needs
A correctly sized storage system ensures you won’t run out of hot water while avoiding excessive energy consumption. For instantaneous systems, ensure the unit’s flow rate matches your household’s demand.
Energy Costs
Electric systems can have higher running costs compared to gas water heaters, solar and heat pumps, especially if not paired with solar panels. We can help you evaluate your electricity tariffs and energy consumption.
Installation
Ensure your home’s electrical setup can support the system. Instantaneous systems, in particular, may require upgrades to your switchboard. We are licensed and qualified to undertake the necessary plumbing and electrical work to install and replace all electric water heaters. This saves considerable time and money not having to outsource to multiple trades.
Long-term savings and operating costs
Consider the system’s lifespan, maintenance needs, and compatibility with renewable energy sources to optimise long-term value.
Electric hot water systems generally last between 10 and 15 years. Factors that are likely to affect the longevity of individual water heaters include:
- Water heater brand
- Manufacturing quality
- Hot water usage
- Maintenance and servicing – Proper care is critical to ensure your system remains reliable for as long as possible.
- Material durability
- Energy efficiency
Questions?
Electric hot water systems are a dependable, affordable, and easy-to-install option for homes of all sizes. While they can have higher running costs, pairing them with renewable energy sources like rooftop solar can mitigate these expenses and make them more sustainable.
At Cheapa Hot Water, we stock an extensive range of electric hot water systems, from compact units for small households to large-capacity options for families with high water demands. With over 30+ years of industry experience, we’re here to help you find the perfect solution for your home. Contact us today to learn more about our electric hot water systems and enjoy reliable, energy-efficient hot water every day!
Cheapa Hot Water Sydney
Hot water is our business – it’s not a sideline. Each year we repair and install hundreds of hot water systems in homes and businesses across Sydney.
- We offer free delivery of your new hot water system and complimentary disposal and recycling of your old water heater.
- As one of Sydney’s largest hot water system suppliers, our enormous buying powers and ability to buy direct from the manufacturer means we can pass attractive savings on to our customers.
- Our fully qualified, licensed hot water heater installers have 30+ years of experience each. We are fully insured and pride ourselves on our old-fashioned customer service.
- We are accredited service agents for all the hot water heater brands including Rheem, Dux, Rinnai, Aquamax, Bosch, Conergy, Hocking, Apricus, Vulcan, Edwards Solar, Solahart, Everhot and more.
- We are qualified to undertake all the plumbing and electrical work required to install a new hot water system. There is no need to waste time and money employing multiple trades.
- We have all the equipment needed to install your hot water system today. We don’t have to hire or wait for other trades to arrive with the required equipment.
Did you know that often the repair and installation of a hot water system requires the expertise and qualifications of both a licensed plumber and a licensed electrician?
We are qualified to undertake any plumbing and electrical work required to ensure your hot water heater is repaired quickly and within budget. Plumbers who do not specialise in the installation of hot water heaters may need to outsource the electrical work required to another tradesperson, thereby holding up your hot water system repair or installation, adding extra expense due to additional call-out fees charged by employing two tradespeople.
Your hot water heater is an expensive appliance. Don’t risk voiding your warranty.
Additionally, most manufacturers won’t cover the terms of your hot water system warranty if it isn’t installed by a licensed hot water technician or a qualified plumber. Hot water tanks are an expensive appliance so why would you risk voiding your warranty by installing it yourself or employing the services of someone who isn’t licensed?