A 315 litre hot water system is suitable for high demand hot water households with at least five residents.
Below are some options for homeowners in Australia.
315 litre Electric Hot Water Heater supply only $1200
315 litre Twin Element Electric Hot Water Heater $1500
330 litre Gas Hot Water Heater $1300
340 litre Natural Gas Hot Water System Installed $2,000
If your current system is leaking, you'll need to replace the tank. Replacing your old hot water heater with a new one will usually cost about $300 for parts and around $500 to $1,000 for labour. If you've got an electric water heater that simply isn't heating up enough hot water anymore, it may be time to install a more energy-efficient model with a higher hot water delivery capacity, which can cost anywhere from $200 to $800.
Generally, gas-powered systems are more efficient than electric systems.
A heat pump water heater system have low running costs, saving you up to 50 per cent of your energy bills.If you're not sure whether or not you need a new hot water system, there are a few signs that can help you figure it out. If your hot water heater is more than 12 years old, or if your hot water isn't getting to all the faucets in your house, then it might be time for a new system. If your old electric model is inflating your bills, it may be time for a new hot water model. Modern energy efficient water heater units have lower running costs. You should also consider replacing your hot water tank if any of the elements are cracked if you're seeing water leaks around your tank. Ordinarily, water borne contaminants, especially in hard water situations, attach to the anode, protecting the cylinder walls from harmful deposits that can lead to heating inefficiencies and rusting. Also, a durable coating of enamel protects the cylinder walls. However, the tank may get rusted in the long run, becoming inefficient, leading to high energy bills.
Typically, a home with three people will need a system with a capacity of at least 150 litres. If you have more people in your home, or if you use a lot of hot water for other activities, like bathing or washing dishes, then you'll need a system with a larger capacity.
There are a few different types of hot water systems to choose from, so it's important to consider your needs before you make a purchase. A 315-litre system is a good option for most 4-5 people homes.
You can get a simple electric hot water model that keeps your hot water heated at the tap, or you could consider installing a complete central heating system. If you're looking for more options, consider some popular choices below.
Electric water heaters use electricity to keep your hot water warm. They usually cost less than other systems, but they only work if you have access to power near where you plan to install the unit. They are also ideal for households connected to lower cost electricity pricing.
Gas powered hot water heaters are more efficient than electric systems, and they can be hooked up to your home's existing gas lines.
Tankless water heaters provide an endless supply of hot water on demand. They're more expensive than other types of water heating units, but they can save you money in the long run because you won't be wasting energy heating up a tank of water that you might not need.
These a good choice for climates that have moderate temperatures year-round, but they don't work well in colder climates.
Solar hot water systems use energy from the sun to heat your water. This is a good option for homes located in sunny climates or for homes that want to use renewable energy.
For instance, solar heaters are suitable for those areas in Australia that experience sunshine most of the days in a year. Again, if the water in your area is predominantly hard water, consider a cylinder with a tough, durable coating and a thicker sacrificial anode. These two conditions will ensure a longer life for the water heater.
If your old electric model is consuming a lot of energy and electricity prices in your area are high, the bills can be punitive. An ideal replacement is a newer model that can run even on lower cost tariffs grids.
The water heater should meet your water use needs. If the hour water use rate is high, a single element heater may not be enough. You can consider double element models that provide a daytime boost to increased hot water needs in such cases.
Households with 1-3 persons will need a cylinder of up to 150L. Larger homes with multiple taps, showerheads, and 5 or more persons need bigger tanks.
Replacing a hot water unit may require a complete changeover of the existing water system. Some models are designed with added installation flexibility. They fit the existing common footprint. Choose water heater models that match current fitting locations making for a smooth and easy changeover.
Different models of electric water heaters have different features. Some models feature a thicker sacrificial anode. A tough, durable coating of enamel protects the cylinder walls giving it a long extended life. If your pipe's common footprint and fitting locations are tricky, consider products with dual handed fittings features to ease the installation process. If you're uncomfortable making these decisions on your own, ask a contractor to help you when choosing the best hot water system for your home. You can also get free quotes from suppliers.
Installing a hot water system usually takes between two and five hours, but the time depends largely on your plumbing and gas lines. If you have an existing hot water tank that is rusted or leaking, then you'll want to consider its replacement during the same service call. Replacing your current hot water system can add more time to this process. Before choosing a new system, ask the contractor about any additional costs that may be involved with installing new plumbing or gas lines. Additional costs may include the below.
Some local councils in Australia may require you to get an installation permit before installing a hot water heating system. A permit will add to the total costs.
The cost quoted by some professional installers is a supply install price. To be sure, consult the suppliers' sales team or your professional installer.
It is highly recommended you confirm if the price quoted is a supply and install price and if it covers all required materials. If in doubt, talk to the supplier's sales team. Also, depending on your location, confirm matters pertaining to local or nationwide delivery costs. Additionally, verify if the warranty conditions apply to components as well.
Selecting a model that matches the existing fitting locations will save you removal costs.
A tempering valve is a component that mixes hot and cold water to ensure normal hot water delivery is maintained. It provides additional protection to prevent user burns from extremely hot water. Its cost may be extra.
For more information on hot water systems, take a look at the YourHome website.