Instantaneous Gas Hot Water Heaters Are Modern Magic In Efficiency and Convenience

Instantaneous gas hot water heaters are a sign of an eco-friendly, modern home

There’s nothing like a steaming cup of coffee on a cold winter morning. But to enjoy that luxury, you need to have hot water on demand

This is where instantaneous gas hot water comes into play.  Instantaneous gas hot water changes everything about your home – and here’s why! New energy-efficient homes are now adopting Instantaneous Gas Heating Systems (IGHS), a step up from the older continuous flow systems.

The traditional gas hot water system heats water in a boiler and sends it to your taps through pipes. The pump pushes the hot water through the pipes at a rate of 50 litres per minute or more. Therefore, it appears that there is an adequate water pressure within your household to accommodate activities such as showers, baths, and cooking.

Instantaneous Gas Hot Water Transforms A Home Into A Lean, Clean Energy Machine

Instantaneous gas hot water systems have been around for a while, but they’re only now starting to change our lives. Also referred to as a gas water heater these systems come in two types, tank and tankless. Tankless is another common name for  instantaneous or instant gas hot water. 

Let’s take a look at the science behind instantaneous gas hot water and why it’s the new wave in energy efficient homes.

Instantaneous gas hot water systems use a small amount of electricity to heat up the water as it’s flowing through the pipes in your home. This is especially useful during peak times when electricity is most expensive, like in the middle of summer when everyone is trying to cool their homes down with air conditioners at once.

Gas storage systems offer a practical solution for smaller homes and apartments due to their space-efficient nature, requiring less area compared to water storage. This characteristic makes them a viable option for residential properties with limited space, allowing homeowners and tenants to utilise this system effectively without compromising on their living arrangements.

Instantaneous Gas Hot Water Is The New Wave In Energy Efficient Homes

When you think of home energy efficiency, what comes to mind? Maybe it’s a solar panel on your roof or LED light bulbs in every room. But there’s another major culprit that wastes electricity: hot water heaters.

Instantaneous gas hot water systems are the new wave in energy efficient homes because they save more than just money–they also help keep our planet healthy by reducing greenhouse gas emissions and pollution from traditional electric water heaters.

An instantaneous gas hot water system is similar to an electric water heater in that it uses a heat exchanger, which transfers the heat from your home’s gas line into your water. The difference between these two systems lies in how they transfer that heat: electric uses resistance heating

Science Has Moved On From Continuous Flow Hot Water To Instantaneous Gas Hot Water

Instantaneous gas hot water is a new technology that has been around for a few years. Continuous flow hot water systems prove to be less efficient, less safe, and less environmentally friendly.

Instantaneous gas hot water has much lower energy consumption than continuous flow systems because it doesn’t need to keep the water in your tank warm all day long. 

Instead, when you want hot water you simply turn on an instant heater which heats up the cold supply line as it enters your home – no waiting around for hours or days! Savings of up to 30% on heating bills compared with conventional systems (and this doesn’t even include savings from using less overall).

As energy rating has become important for efficiency and cost savings, the need for reliable, consistent measurement standards has surged. These standards must address various types of energy sources, from fossil fuels to renewable energy forms, and their respective conversion and usage efficiencies. 

They should also encompass differing types of equipment and technologies, such as HVAC systems, electric vehicles, and household appliances, to ensure a comprehensive approach towards energy efficiency. 

By establishing a common language for energy rating, we can not only foster a competitive market for energy-efficient products, but also empower consumers with the knowledge to make informed, environmentally conscious decisions. 

Natural gas as a source of energy in Australia makes sense because it is abundant, cost-effective, and cleaner than coal. Estimates indicate that Australia’s vast reserves of natural gas will last for several decades, ensuring a steady supply of energy. Additionally, natural gas is significantly cheaper than other forms of energy, which results in considerable savings for Australian households and businesses. 

When burned, natural gas emits less harmful pollutants compared to coal, making it a cleaner energy option. This helps to lower Australia’s overall carbon footprint, aligning with the country’s commitment to reducing greenhouse gas emissions. 

Furthermore, the development of the natural gas industry can provide a boost to the Australian economy, creating jobs and encouraging technological innovation.  

Instantaneous heaters are also safer than conventional models: they don’t use electricity so there’s no risk of electrocution if someone were to come into contact with them during installation or maintenance work; plus their simple design makes them easy for everyone from tradespeople through homeowners themselves right down until children can safely operate them without supervision.*

Instantaneous gas hot water heaters are also environmentally friendly. Stainless steel makes them resistant to corrosion and rust, eliminating the need for you to worry about making regular maintenance visits to your home for repairing or replacing worn-out parts over time. 

Alternatives Sources To Gas Hot Water Heaters

Heat pumps basically work by utilising the principles of refrigeration, rather than fuel combustion, to generate heat. This process involves transferring heat from one location to another, which makes heat pumps incredibly efficient compared to traditional heating systems. 

On the other hand, instantaneous gas hot water units generate heat by burning gas, a process that is immediately effective but is less efficient due to the energy lost during combustion. This means that while both systems can provide immediate heat, heat pumps typically do so at a lower cost and with less environmental impact, given their energy efficiency and use of renewable resources. 

However, the temperature of the source from which heat pumps draw heat can influence their efficiency, which can limit their effectiveness in particularly cold climates. On the other hand, instantaneous gas hot water units do not depend on external temperatures and can therefore deliver a consistent level of heat regardless of the weather conditions.

Solar hot water systems, which use sunlight to heat your home’s water, are easy to understand. They contain solar thermal collectors, a fluid system to transfer heat, and a heat storage tank. Throughout the day, these collectors soak up the sun’s energy, which heats the fluid. This fluid then travels to a heat exchanger in the tank, heating the stored water. 

This method provides a dependable, eco-friendly source of hot water for daily needs like washing and bathing. In addition to being green, these systems can also save money in the long run by reducing reliance on traditional energy sources and lowering energy bills.

The traditional solution for hot water systems is electric ones, which typically consume the most energy, especially when they have a tank. Tankless electric hot water systems, on the other hand, are an increasingly popular alternative due to their energy efficiency. Unlike traditional systems, these units heat water directly without the use of a storage tank, which means they avoid the standby energy losses associated with storage water heaters. 

They provide hot water on demand, ensuring you only use energy when you actually need hot water. However, it’s important to note that the initial installation costs for tankless systems can be higher than those for traditional tank systems, making it crucial to consider both upfront and long-term costs when choosing between the two.

You can read more on the differences in our post on Gas VS Electric Hot Water Heaters: A Comprehensive Comparison.

Instantaneous Gas Hot Water Has Started To Change Our Lives – And Here’s Why!

Instantaneous gas hot water is a new technology that has started to change our lives – and here’s why!

  • It’s clean, highly efficient and safe. Instantaneous gas hot water heats up your water instantly. This means you don’t have to wait around for your shower or bath to heat up like you do with traditional electric storage heaters. As well as saving you time (and therefore money), instantaneous heating also cuts down on the amount of greenhouse gases produced by the power plant that supplies electricity for your old style hot water system.*
  • The running costs are lower. You’ll save money on your energy bills. You might think that having instant access to hot water would cost more but actually it saves money because there’s no need for an expensive tank or heater which can lose heat through evaporation over time.*
  • Reliable hot water. Tankless gas water heaters are more reliable than traditional ones. They last longer, often up to 20 years with maintenance, compared to the 10-15 years lifespan of traditional heaters. They are less likely to leak or fail because they don’t store water, which can cause corrosion in traditional water heaters.
  • Instantaneous gas hot water systems are safer. With instantaneous gas hot water, you don’t need to worry about turning on a tap in your bathroom and having it flow cold water when you get out of the shower. This can be dangerous if there are small children or elderly people living in the house who might fall over in the shower because of this problem!* 
  • It is straightforward to use. Installing gas hot water is quick and simple, so any handy person can do it themselves with no need for specialist knowledge or equipment.*
  • They conserve spatial capacity. This system uses gas and doesn’t need a big tank to store water, so it doesn’t take up much room. It heats up water as you need it, rather than keeping a big tank of hot water like old-style systems.

Residential instantaneous gas hot water changes a home into a lean, clean energy machine

Instantaneous gas hot water is the new wave in energy efficient homes. It’s not a new concept, but it is starting to change our lives and here’s why.

Instantaneous gas hot water has been around for decades, but only recently has this technology become more affordable for homeowners. With instant hot water heaters (IHWH), you don’t have to wait for your tankless or tank-type heater to heat up before getting warm water from your tap. 

Instead of waiting 15 minutes or more while waiting for the tankless unit to heat up enough water so that it can flow through your pipes into your faucet or shower head; with an instantaneous model you’ll receive scalding hot liquid right away without any delay whatsoever!


We all want to live in a green home, but it can be hard to know where to start. The good news is that there are plenty of ways you can reduce your carbon footprint without sacrificing comfort or convenience. One simple way is by switching up your hot water heater with an instantaneous gas model (IGWH).

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