Electric Hot Water Systems

Find an electric hot water unit that fits your home, budget, and space. This page explains the main options, how to size correctly, and what to check before you buy. You will see the core formats across Electric Hot Water, including compact instantaneous units and the reliable Electric Hot Water Storage Heaters most Australian homes use. If you want predictable costs, straightforward installation, and wide model choice, an Electric Hot Water System is a strong option.

Electric systems suit apartments, townhouses, granny flats, and busy family homes. They connect easily where gas is unavailable, work well with off-peak tariffs, and offer capacities for single bathrooms through to large households. Renovation Kingdom stocks leading brands with clear specifications, compatible fittings, and fast delivery.

Why choose an electric hot water system

An Electric Hot Water Heater is simple to install and maintain. Storage models keep a set volume of hot water ready for the morning rush or evening showers. Instantaneous electric units heat water as you use it and save space. With electric, you can take advantage of off-peak or time-of-use tariffs, helping you manage running costs. The wide range of tank sizes also makes it easier to match a system to your bathroom layout and daily demand.

Storage vs instantaneous

Most homes pick Electric Hot Water Storage Heaters. A storage tank warms a fixed volume of water and keeps it at temperature, so you get steady flow for showers and baths. Choose a tank size that suits your highest hour of use. Look at recovery time, element wattage, and insulation rating if you have long back-to-back showers.

Instantaneous electric units are compact and avoid standing heat losses from a tank. They suit tight spaces and low to moderate demand. Check the unit’s kW rating, the electrical supply available at your switchboard, and the minimum operating flow. Talk to your licensed installer about wiring requirements and circuit protection.

Sizing your electric hot water heater

Right-sizing helps you avoid running out of hot water or paying to heat water you do not use. As a general guide, singles or couples in smaller homes often choose a 50 to 125 litre tank or a compact instantaneous unit. Households of three to four typically sit in the 160 to 250 litre range. Larger families, homes with two bathrooms running at once, or properties with a large bath may need 250 to 315 litres or a high-output instantaneous unit. Factor in shower length, kitchen and laundry overlap, and the typical time of day you use the most hot water.

Running costs and tariffs

Electric systems can be cost-effective when paired with off-peak or controlled-load tariffs. Heating the tank overnight and drawing from it during the day spreads demand and can reduce bills. If your retailer offers time-of-use pricing, speak with your electrician about timers or smart controls that bias heating to cheaper periods. Simple steps such as setting a sensible thermostat, insulating exposed hot water lines, and using water-saving shower heads help control energy use without affecting comfort.

Installation and compliance

All hot water installations must be carried out by a licensed plumber, and electric connections by a licensed electrician. Decide on the location first. Indoor installs need a safe tray and drain in many cases, plus clearances for service access. Outdoor installs free up space and suit larger tanks, but still need correct drainage and protection from weather. Bathroom outlets usually require a tempering valve that mixes hot and cold to a safe delivery temperature. Your installer will also confirm pressure requirements and any local regulations.

Accessories that complete the job

Ordering the right fittings with your Electric Hot Water unit keeps the job moving. Common accessories include tempering valves, pressure limiting and expansion control valves, duo valves, safe trays and drains for indoor locations, anode kits for long-term maintenance, and pipe lagging for exposed lines. For instantaneous units, confirm any required isolation switches or load control hardware with your electrician.

Maintenance and longevity

Electric storage tanks are dependable and, with basic care, deliver years of service. Keep the area around the unit clear. Test the temperature and pressure relief valve as per the manual, and check for small weeps at joints during seasonal changes. Ask your plumber about anode inspection intervals. Replacing an anode before it is depleted can extend tank life. Instantaneous units benefit from periodic checks of filters, electrical connections, and settings. Keep a record of the model and serial number for warranty and parts.

How to choose in three quick steps

Start with the format that suits your space and usage. Storage is the go-to for most households. Instantaneous fits tight cupboards or small homes. Next, match capacity or kW rating to your busiest hour so showers stay steady. Finally, add the fittings your installer will request. Ordering the valves, tray, and pipe insulation with the unit helps avoid delays.

Why buy from Renovation Kingdom

Renovation Kingdom is Australia’s leading supplier of high-quality bathroom products, with a large range of Electric Hot Water Systems from renowned Australian brands. Product pages list capacities, recovery times, element ratings, dimensions, and compatible accessories, so you can compare quickly and order with confidence. Our team can help you shortlist models, confirm practical installation notes, and build a parts list your trades will appreciate.

Ready to shop

Browse the category to compare Electric Hot Water Units across size, footprint, and tariff suitability. Shortlist the models that meet your capacity needs, add the correct valves and any safe tray or drain, then check out for fast Australia-wide delivery. If you are moving from gas or replacing an older tank, our range covers direct replacements and upgrades with better insulation and smarter controls.