Best Hot Water Systems to Save You Time and Money

Rinnai Hot Water Systems

For 40 years Australians have been enjoying the comfort, convenience and reliability of Rinnai appliances. Immerge Group has an extensive range of Rinnai hot water systems that cater for both domestic & commercial applications. We can supply your hot water unit and install it too.

Hot water system efficiency and amount of hot water it can supply differs depending on how the system works. There are various types of hot water systems such as gas, electricity and solar energy. Electric water heaters have high operating costs and poor energy efficiency. Gas hot water systems have good energy efficiency and reliability overall. Solar powered hot water units use a solar thermal collector which is a device that absorbs the sun’s energy.

Electric, Solar or Gas Hot Water Systems?


Gas Hot Water Systems

Gas systems use natural gas or LPG to heat the water; they are cheaper to run than electric but also require a professional installation so you need to call an expert.


Electric Hot Water Systems

Electric systems use electricity to heat the water; they can be more expensive to run but save you time and installation cost as there is no need for a gas connection.


Solar Hot Water Systems

Solar hot water systems, as the name suggests, use the sun to heat water. They are cheaper to run than electric and gas systems but upfront costs are higher.

Gas Hot Water Systems

Gas continuous flow hot water systems are one of the most popular sources of heating water. They are less expensive to run than electric storage systems. Gas hot water systems use natural gas or LPG to generate heat for the water tank. Most homes can use a gas hot water system. The gas hot water system is a great alternative to the electric hot water systems. Gas units provide instant heat on demand and unlike storage systems, you’ll never run out of hot water.

Gas hot water systems are one of the most popular types on the market, and they’re easy to install.
The gas system is connected through a pipe that goes into your home’s gas line. The pipe is usually installed above ground, although it can be buried if necessary.

Gas Hot Water Systems can be installed into your home quickly and easily, and the installation costs will vary depending on your home’s size.

Electric Hot Water Systems

It is estimated that electric hot water systems account for about 60% of the market. They are also one of the most popular choices as they tend to be cheaper, easier to install and more reliable than the other options.

The electric hot water system is a heating system for water, which can be installed in a house, building or other property. The process of the electric hot water is quite simple: water is heated by an electrical resistance element and then pumped to the point of use.

The benefits of electric hot water systems over conventional ones are that it is very energy efficient and the installation is simple. It also doesn’t need gas or oil to generate heat which can be a safety concern during bad weather conditions. But they do require a lot more electricity to work which can be expensive for people who live in remote areas where electricity is expensive.

Solar Hot Water Systems

Sunmaster Solar Hot Water System

Rinnai Solar System

Solar hot water systems are very popular nowadays because they are environmentally friendly and are cheap to run.

Solar heating is both sustainable and environmentally-friendly, so it is no surprise that many homeowners are opting for this type of system. They also provide the added benefit of low running costs, which makes them a popular choice for both residential and commercial properties.

Solar water heating is the most popular form of renewable energy in homes. There are many benefits to using this particular type of heating system, including the fact that it is environmentally friendly, has low maintenance costs.

The solar hot water collectors are installed on rooftops where the sun’s rays heat up the water inside. The heated water circulates to storage tanks. When there is no solar gain, for example at night or during cold cloudy days, electric or gas boosters will ensure you have continuous hot water to your home.

The most efficient solar thermal collector is the evacuated tube, which uses vacuum tubes to contain heat energy. A typical evacuated tube contains water at around 100° C (212° F) and can convert about 65% of the incoming solar energy into heat.

They’re easy to install and can be used on new or old buildings with little disruption.

Choosing the Best Rinnai Hot Water System


While these are three of the best heating units for your home, it’s by no means a complete list. However, your best option stems down to your preferences and the heating needs of your house.

Immerge Group is a Rinnai authorised service partner and not only do we supply and install Rinnai hot water systems, but we service also provide maintenance and service repairs too!