Buying a new hot water system

Let’s be honest. Hot water isn’t all that sexy. The only time we really think about it is when it’s not working, or when it’s costing us too much. Many homes have existing systems which are old and outdated, which in turn can impact on your energy usage.

How do you know when it’s time to upgrade?

The general rule of thumb is this: if your system is over 12 years old, then it’s time to look for a replacement rather than a repair. Why? The average expected  lifespan of a hot water system is 12.5 years & current systems are much more efficient in heating water and therefore can work to reduce your overall energy use.

“If your system is over 12 years old, then it’s time to look for a replacement rather than a repair.”

There’s a few things to consider when buying a new hot water system; the space you have, where existing pipes come into your home, what your water pressure is like, what your storage capacity is. The other key consideration is how the system is powered, either by electricity, natural gas or solar.

4 things to check when buying a hot water system

If you’re ready to buy a new hot water system, there’s a few things to consider before purchasing.

1. How many people live in your house?

The number of people in your family or home will help you determine the size of the system. For example; an average 250-litre hot water system tank has the capacity to service two to five people. Add more people that prefer to soak in the bath and you may need to upsize.

2. How many appliances do you have?

Dishwashers and washing machines use water – no revelation there, but it is something you should remember to consider when looking at a hot water system. Many of us have everything running at once.

3. What does your daily routine look like?

If you’re the kind of person or family who is running the washing machine, dishwasher, and having a shower or bath at the same time, then your hot water system is under a lot of pressure. You’ll need a system with a strong flow rate to multiple outlets in order to keep things moving.

4. How many taps do you have?

If you do a quick inventory around your house, how many taps require hot water? You’ll probably be surprised. On average a three bedroom, two bathroom home has eight to 10 taps. More than half of hot water use is in the bathroom, a third in the laundry and the remainder in the kitchen. One of the best ways to reduce energy bills is to reduce hot water use by installing water efficient shower heads and taps, coupled with the right hot water system.

Weighing all of these factors up will help you make an informed decision about your next purchase. Unfortunately, in an emergency we’re given little time to make a decision. If your hot water system breaks down, you’ll need access to a reputable supplier with expert knowledge and support.

How can Origin help ?

Whether you’re in a house, townhouse or unit – call our hot water hotline on 1300 791 468. We’re available 8 am–6pm, Monday–Friday. If it’s an emergency, we offer Mon-Fri same day system replacements for purchases prior to 10 am#

We offer a range of systems from leading suppliers like Aquamax, Rheem, Bosch and Rinnai and offer flexible payment options. Our interest free payment plan allows you to have a system installed without paying the whole amount upfront2.

If you’re looking for advice on the best system to buy, we offer obligation free quotes. Our qualified hot water team is on call to assist you.

Choose a Hot Water System or a Hot Water Heater from Origin

We’ve got a range of electric and gas hot water systems and hot water heaters for your home. Find out more


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2.  Our payment plan requires an initial payment of $0 plus the remaining total cost paid over 12 months via equal monthly instalments on your credit card.

# Replacement systems will be installed Monday – Friday. Same day installation applies to purchases made prior to 10 am in your capital city in the areas we service and applies to selected systems. Installations are based on standard installations with no variations in a like for like scenario, excluding products that require a fuel change and or relocation. Same day installation not valid for purchases made on Saturday or Sunday and / or public holidays.

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