Same Day Hot Water Service supply and install a variety of electric hot water systems Australia wide. Our expert team with over 30 years of industry experience will ensure you receive top-quality service and reliable hot water solutions. Browse our electric hot water system range below to find the right system for you.
Here at Same Day Hot Water Service, we generally try to use Australian-owned and manufactured products. Fortunately, most large-capacity electric storage tanks are made right here in Australia! Rinnai has a manufacturing facility in Melbourne Braeside. Rinnai still has some products manufactured in China. Rheem has a vitreous enamel factory in Sydney Rydalmere. In addition, Rheem has an Aquamax/Stainless Steel factory in Moorabbin, Melbourne. Rheem also owns a manufacturing facility in Vietnam that manufactures some of their small-capacity electric storage hot water heater range. Dux has their manufacturing facility south of Sydney in the suburb of Mossvale Southern Highlands of NSW. Additionally, Dux has some of their small capacity electric storage hot water heater range manufactured in factories in China.
Instantaneous electric hot water system brands include Wilson, Zip, and the most common in the market, Stiebel Eltron.
Off-peak/nighttime tariff heating usually heats water between 11:00 p.m. to 7:00 p.m. Off-peak electricity is made available during the off-peak period when there is a surplus amount of electricity available. Depending on where you live in Australia affects the cost of off-peak power. However, in many cases, the cost is significantly less and can be half that of regular electricity. The best electric water heaters suited for off-peak power tariffs are large-capacity electric storage tanks with a capacity of 250 litres, 315 litres, or 400 litres.
The shoulder tariff has an additional heating cycle during the day from 10:00 a.m. to 4:00 p.m. In return for allowing you to heat your water during this period, the power companies usually charge you two-thirds of your peak costs. Off-peak 2 can be used for electric storage heaters with capacities of 125 litres and 160 litres. The Off-Peak 2 tariff is commonly used to heat water for larger families when the off-peak simply is not enough.
Peak load or continuous power is the most expensive of the three tariff types, as you have 24-hour access to electricity. In most cases, this power cycle is used for electric storage tank sizes from 25 litres to 160 litres. This tariff is especially popular in apartments and townhouses.
Warranty varies based on the brand of electric hot water system you choose, along with the material the tank is manufactured with, but generally ranges from 7-12 years. Electric storage hot water tanks are available in both stainless steel and vitreous enamel.
A sacrificial anode protects vitreous enamel electric storage tanks. For most of the country, the sacrificial anode is usually made from magnesium. In some parts of Australia, where there is a higher level of total dissolved solids within the water – the sacrificial anode is made from aluminium. As the name suggests, the anode sacrifices itself for the tank’s longevity.
When considering a hot water system upgrade for your residential property, it’s worth exploring models with a built-in timer and smart controls. These features improve safety by regulating temperature and operation cycles, and support eco-friendly energy usage by limiting heating to off-peak times. Many modern systems offer efficient, low-impact options ideal for everyday residential use.
Although electric storage tanks are not the most efficient models on the market, they are still very effective at retaining heat. Even after a few days, an electric storage hot water system will still provide a usable hot water temperature. This is partly due to the insulation of the tank and pipes that ensures as little heat loss as possible.
Electric hot water systems are the most common type of hot water system for good reason. To discuss how our range of systems and units can mean cheaper electricity prices and more reliable hot water, contact our friendly team today.
The amount of electricity a hot water system uses depends on its size, efficiency, and usage patterns. A standard electric storage system typically uses around 3 to 4.5 kW of electricity per hour when heating water. Larger systems or those used in high-demand households will consume more energy. Using off-peak electricity can significantly lower costs by heating water during cheaper tariff periods
An electric hot water system typically lasts between 10 to 15 years with proper maintenance. Factors such as water quality, system usage, and regular servicing can affect its lifespan. It’s important to have components like the thermostat and sacrificial anode checked periodically to extend the system’s durability and efficiency.
The main difference between electric storage and instantaneous systems lies in how they heat water:
Choosing between the two depends on your household size and hot water usage.
Yes, many electric hot water systems are designed to use off-peak power, which heats water during lower-cost electricity periods. This can help significantly reduce running costs, especially for storage systems that can heat water during off-peak times and store it for later use. To take advantage of this, you’ll need to ensure your system is connected to an off-peak electricity tariff provided by your energy supplier.
Maintaining an electric hot water system is pretty simple but important to keep it running well. You’ll want to check the thermostat to make sure it’s heating properly and inspect the pressure relief valve to prevent pressure build-up. If you’ve got a storage system, you should also replace the sacrificial anode every few years to stop rust from damaging the tank. Flushing the tank to remove sediment is a good idea too. It’s best to have a professional check things annually to catch any issues early.
The size of the electric hot water system you need depends on your household size and water usage. For example, if you have 1-2 people, a smaller system of around 50-125 litres is recommended. For 3-4 people, a mid-sized system of 160-250 litres is usually a good fit. If you have a larger household with 5 or more people, you’ll likely need a system of 250 litres or more. It’s a good idea to think about your peak water use and consult a professional to find the right size.
Looking for an alternative? Check out our range of reliable gas hot water systems