Quick Installs, Repairs and Replacements
Electric hot water systems
Electric hot water systems offer a cost-effective and dependable option for households, ensuring a steady flow of hot water. Gympie Hot Water provides straightforward, efficient electric hot water installations and repairs with reliable service.
Electric hot water systems
Electric hot water systems continue to be the most widely used hot water units in Australian homes and have been produced domestically for over a century. Although the basic technology remains similar, contemporary models use better-quality materials and thicker, denser insulation around the storage cylinder. That improved insulation reduces heat loss and keeps water hotter for longer, making modern systems more efficient than pre-2000 units.
These systems function much like a kettle, using an electric heating element, and in Queensland are typically offered in three main power ratings: 1.8kW, 2.4kW and 3.6kW (with a small number of 4.8kW units in areas that can support the higher load). This sizing is common across established brands such as Rheem, Dux, Vulcan, AquaMAX and Rinnai.
Bear in mind that element size does not alter the total energy required to heat a given volume of water. For example, a 1.8kW element draws half the power of a 3.6kW element but will take roughly twice as long to raise the same amount of water to the same temperature.
Most electric hot water systems are built with mild steel tanks that have a vitreous enamel lining and are protected by a sacrificial anode; stainless steel tanks are also available. Older copper-style water heaters are no longer manufactured.
Gympie Hot Water supplies and installs dependable electric hot water systems, and our Gympie plumber team can assist with installation, repairs and advice on gas and electric hot water systems to meet every household’s needs.
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An electric water heater system
An electric hot water system can make up roughly one-third of your electricity costs if you don’t have PV solar exporting to the grid. Tariff 11, which provides standard-rate power 24 hours a day for general lighting and appliances, attracts higher charges. Systems on tariff 33 run for about 18 hours each day, commonly cutting out between 6–9am and 6–9pm. Tariff 31 is the lowest-cost option, supplying electricity only during off-peak hours, typically from 9pm to 6am.
Keep in mind that tariff 31 is usually unsuitable for hot water cylinders smaller than 250 litres when the household has two or more occupants.
Electric hot water systems come in a broad selection of storage sizes, from compact 25-litre units for a single sink or kitchenette to large 400-litre tanks for bigger homes. The following is a general sizing guide (actual needs vary with usage):
50L & 80L: Best for 1–2 people in small units. These sizes generally operate only on tariff 11 and aren’t appropriate for off-peak tariffs.
125L: Suited to 2–3 people in a unit or small townhouse when installed on tariff 33.
160L: Good for 2–4 people in a unit or small townhouse on tariff 33.
250L: Works for 2–4 people on tariff 31 in many three-bedroom homes, and can serve up to 6 people on tariff 33.
315L: Appropriate for 3–5 people on tariff 31, or up to 7 people on tariff 33.
400L: Ideal for 4–7 people on tariff 31, up to 9 people on tariff 33, and as many as 12 people on tariff 11.
Gympie Hot Water can advise on the right hot water systems, installation and tariff arrangements — including gas and electric options — to deliver dependable hot water while helping reduce your energy bills. If you need repairs or a new installation, our Gympie plumber team is ready to help.
Rheem
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Rheem is one of the most recognised names in hot water, known worldwide for reliable products and supported by one of the largest marketing programs in the sector.
Across Australia, Rheem produces a broad selection of electric hot water systems:
Mild steel vitreous enamel (VE) tanks are manufactured in Sydney.
Stainless steel models are built in Melbourne at the former AquaMAX facility.
Under the Rheem umbrella you’ll also find well-known domestic hot water brands such as AquaMAX, Vulcan and Solahart.
Warranty periods vary from 5 to 12 years depending on tank size and construction. To preserve warranty cover and prolong the life of your hot water unit, servicing is needed at least every five years. Servicing should include replacing the sacrificial anode on vitreous enamel tanks, and we also advise changing the pressure and temperature relief valve during service.
At Gympie Hot Water, our Gympie plumbers frequently recommend Rheem for its proven dependability, wide product choice and the confidence that comes with a leading name in hot water systems, including gas and electric installation and repairs.
AquaMAX
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The AquaMAX brand has been trading since 1988; originally a family-run company, it became part of Rheem in 2009 after selling more than 500,000 electric hot water units.
AquaMAX has long been regarded within the industry for dependable quality, particularly noted for its stainless steel offerings.
Their stainless steel cylinders continue to be manufactured in Victoria, while the mild steel VE series of electric hot water systems is produced at Rheem’s Sydney facility.
AquaMAX hot water systems carry warranties ranging from 7 to 10 years depending on cylinder capacity — smaller tanks typically receive shorter warranty terms.
A service is recommended before five years of use, with replacement of the anode especially advised to extend the life of the tank.
Vulcan
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Vulcan is a well-regarded hot water brand produced by Rheem, offering a budget-conscious option that delivers reliable performance. Vulcan’s electric hot water units use mild steel with a vitreous enamel lining, engineered to provide consistent service in Australian homes. Warranty: 7 years for the 50L electric storage model; 10 years for capacities from 80L to 400L. To help extend the life of the cylinder, replace the sacrificial anode between years four and five — this routine maintenance reduces corrosion and helps maintain system efficiency. At Gympie Hot Water, we recommend Vulcan hot water systems as an affordable, dependable choice, and our Gympie plumber team can assist with installation, gas and electric repairs and routine servicing.
Rinnai
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Rinnai is widely recognised as a frontrunner in gas hot water, and historically sourced its electric hot water units from China or had them built by Dux in NSW. More recently, Rinnai has established its own production facility in Victoria, manufacturing the Hotflo electric hot water systems here in Australia.
Their electric lineup ranges from compact 25 litre models—perfect for kitchenettes or tight spaces—up to 400 litre tanks suited to larger households. Warranty: 7 years on 25L and 50L models, and 10 years on all larger units. To keep that warranty valid, a service is required every five years (or sooner). At Gympie Hot Water, we supply and endorse Rinnai systems for their reliable performance, energy-efficient operation and the reassurance of Australian-made manufacturing. We’re a local Gympie plumber able to help with installation, repairs and service for both gas and electric hot water systems.
Dux
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Dux has been a recognised name in Australian hot water for over a century. Although the company is no longer Australian-owned, it still manufactures dependable systems suited to local conditions. All Dux electric hot water systems use mild steel cylinders lined with vitreous enamel, providing long-lasting performance for homes of various sizes. Most units are produced in Moss Vale, NSW, with tank capacities from compact 25-litre models up to 400-litre systems. Warranty periods vary by capacity: 7 years on the cylinders of the 25L and 50L models and 10 years on larger tanks. At Gympie Hot Water, we endorse Dux hot water heaters for their consistent reliability and keep a broad selection in stock so a Gympie plumber can supply and install the right system quickly — including gas and electric options, installations and repairs.
Thermann
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Thermann is a product line sold exclusively through Reece Plumbing Supplies, with its electric hot water units produced by Dux. Built with mild steel bodies and a vitreous enamel interior coating, Thermann tanks include a sacrificial anode to minimise corrosion. To help the system reach its intended service life, that anode should be changed within five years. Thermann electric hot water systems carry the same warranty terms as the Dux Proflo series: 7 years for 25L and 50L models and 10 years for larger capacities. At Gympie Hot Water, we hold Thermann heaters in high regard for their dependable performance and solid build quality.
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