Gas storage versus instantaneous gas hot water system

storage vs instaneous gas hot water

What’s the difference between gas continuous hot water and storage tank water heater?

Many Sydney homes have gas hot water systems. The two options when it comes to gas hot water are gas storage where the hot water is heated and stored in a large water tank, the other is continuous flow (also called instantaneous gas) where the hot water is heater as it’s used.

So, which is better? Storage or instantaneous gas hot water? It depends on the hot water usage requirements of your household. It also depends on the space available for the system.  Below we’ve outlined the advantages and disadvantages of both systems.  If you have any questions, don’t hesitate to contact our hot water specialists.  After asking you a few questions over the phone, we can let you know the options available and help you decide which gas hot water heater is best for your requirements and budget.

gas storage hot water system

How does gas storage hot water heater work?

Gas storage hot water systems heat the water in the tank. They store a generous amount of hot water ready for use.

The main advantage of gas storage hot water is that the hot water is supplied at mains pressure which means you can run several hot water appliances at the same time. For example, someone can be having a shower while the washing up is being done.

Gas storage may not suit properties that don’t have adequate space for the hot water storage tank.

Features of gas storage hot water systems

  • Mains pressure means a steady flow of hot water so you can run multiple taps at the same time.
  • Energy efficient gas hot water systems can cost less to run than instantaneous gas hot water
  • They don’t require an electricity connection.
  • If your household uses a lot of hot water, high recovery gas hot water systems can heat up the water very quickly so you don’t run out of hot water.

Gas hot water system prices »

gas continous hot water system

How does continuous flow or instantaneous gas hot water work?

Instantaneous gas hot water systems, also called continuous flow or tankless hot water, deliver hot water instantly, as you need it.  One of the main advantages is that you never run out of hot water because the water is being heated on demand.

Another advantage is that the gas hot water unit is compact and wall-mounted so doesn’t take up much space.  For further space saving and improved aesthetics, they can be recessed into the wall giving a more streamlined finish.

Features of instantaneous gas hot water heaters

  • If you have a household where everyone has showers around the same time (i.e. each morning) then heating hot water on demand can be a convenient option ensuring you won’t run out.
  • Some new generation instantaneous gas hot water systems offer higher-pressure water delivery so you can run multiple taps without losing pressure.
  • High energy rating saves money and is better for the environment.
  • Compact design takes up less space.

Gas hot water system prices »


For advice choosing the gas hot water system that suits your needs and budget, contact our friendly team.  You’ll speak directly with a hot water specialist who can help you make the right decision.  We’re here to help.

hot water system prices

Gas hot water heater prices

We supply thousands of hot water systems to Sydney residents and businesses every year. Take advantage of our buying power and save money on the purchase price of your new hot water system. We offer free delivery to all Sydney suburbs and we’ll even take away, and recycle your old tank. We’ll beat any genuine quote today! Ask us about Government rebates and incentives that may be available if you’re upgrading to a more energy-efficient hot water system.

  • Free delivery of all new hot water systems to all Sydney suburbs.
  • We’ll take away your old hot water heater tank free of charge.
  • Competitive pricing – as one of Australia’s largest hot water system installers, we have enormous buying power with savings we can pass on to our customers.
  • Complete integration solutions for all your hot water requirements.
  • Prompt, friendly, quality service.
  • Expert, obligation-free advice to help you choose the right hot water system for your home or business
  • We supply all the major hot water brands including RheemDux, Rinnai, Aquamax, Bosch, ConergyHockingApricusVulcanEdwards SolarSolahart, Everhot and more.

For obligation-free advice on purchasing a new hot water system that will suit your hot water usage and budget, contact our friendly team. We’re here to help.

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cheapa hot water sydney

Cheapa Hot Water Sydney

Hot water is our business – it’s not a sideline. Each year we repair and install hundreds of hot water systems in homes across all Sydney suburbs.

  • We offer free delivery of your new hot water system and complimentary disposal and recycling of your old water heater.
  • As one of Sydney’s largest hot water system suppliers, our enormous buying powers and ability to buy direct from the manufacturer means we can pass attractive savings on to our customers.
  • Our fully qualified, licensed hot water heater installers have over 25+ years of experience each. We are fully insured and pride ourselves on our old-fashioned customer service.
  • We are accredited service agents for all the hot water heater brands including RheemDux, Rinnai, Aquamax, Bosch, ConergyHockingApricusVulcanEdwards SolarSolahart, Everhot and more.
  • We are qualified to undertake all the plumbing and electrical work required to install a new hot water system. There is no need to waste time and money employing multiple trades.
  • We have all the equipment needed to install your hot water system today. We don’t have to hire or wait for other trades to arrive with the required equipment.

Your hot water heater is an expensive appliance. Don’t risk voiding your warranty.

Additionally, most manufacturers won’t cover the terms of your hot water system warranty if it isn’t installed by a licensed hot water technician or qualified plumber. Hot water tanks are an expensive appliance so why would you risk voiding your warranty by installing it yourself or employing the services of someone who isn’t licensed?

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