A well functioning hot water service plays a major role in our daily lives. This is why it’s so important to understand the warning signs and recognise when repairs are required. If this situation applies to you, we’re here to help!

At PlumbCall, our plumbers have serviced and repaired hot water units throughout Australia for many years. In the article below, we’re going to share some of our insights and cover the top 5 signs you may need to replace a hot water heater.

How Long Do Hot Water Systems Last?

First things first, it’s always good to start by assessing the age of your existing system. If it’s already exceeded its recommended lifespan, or hasn’t been repaired or replaced in a while, chances are it needs to get checked by a plumber. In this sense, you can either look up the make and model, or play it safe and get professional assistance.

Here are some general guidelines:

1. Mild-steel tanks: 5-10 years 
2. Enamel-lined tanks: 5-10 years 
3. Copper tanks: 7-10 years 
4. Stainless steel tanks: 10 years
5. Heat pump: 10 years 

Please note that these are ballpark figures and the lifespan of your unit will depend on a variety of factors, such as brand and level of use.

The Top 5 Signs

Because we use our hot water service so much, this forces the system to work quite hard. As a result, a number of issues may appear, especially if the unit is on the older side. If you’re experiencing one or more of the signs listed below, reach out to us now for hot water repairs and installation services.

Rusty or Dirty Water

Noticed that your hot water has suddenly become rusty or cloudy? This is often a sign that your water heater is corroding on the inside. This issue typically occurs in older tanks where the lining has worn away and the metal is exposed to water. Over time, this leads to the accumulation of rust, which both discolours the water and impacts its taste and smell. Rusty water may also be an indication of sediment buildup at the bottom of the tank. This will need to be flushed out to prevent further damage.

While rusty water isn’t always harmful to your health, it’s definitely a clear sign that your water heater is most likely reaching the end of its life. Continuing to use a system in this condition may lead to leaks, water contamination, and inefficient heating. 

Getting your water heater replaced will save you from larger issues, including structural damage caused by leaks or corrosion spreading through your plumbing system.

Strange Noises and Smells

From banging to popping, hissing or rumbling, a variety of strange sounds may ring out when you turn on the taps. So, what’s generally the cause here? These sounds are typically the result of sediment buildup in the tank. Over time, minerals in the water settle at the bottom of the tank. From here, they tend to harden and create a layer that interferes with the heating process. As the water heater struggles to function, it can overheat, leading to popping or rumbling noises as water becomes trapped under the sediment.

Unpleasant smells could also indicate trouble. A sulphur-like or rotten egg smell often signals that bacteria is present in the tank, and is usually due to a failing anode rod. This component is responsible for preventing corrosion, but once it deteriorates, bacteria can form and cause foul-smelling water.

If you experience these symptoms, it’s best to contact your local plumber. They will be able to assess the system and determine whether repairs or a replacement is needed.

Water Pressure Problems

Are your showers no longer what they used to be? Can’t find the perfect level of water pressure? There’s a good chance your hot water unit is the culprit. 

There’s no doubt that a sudden drop in water pressure can be frustrating, and it is often a sign that something is wrong with your hot water system. A common cause of this issue is the accumulation of mineral deposits inside the water heater (particularly in hard water areas). Over time, these minerals tend to build up in both the pipes and tank. This then restricts the water flow and reduces the pressure. Sediment may also clog other key components such as valves or filters. All of these factors make it difficult for water to flow freely throughout the plumbing system.

Low water pressure can significantly impact your daily routines, from showering to washing dishes. If left unaddressed, the problem can worsen, leading to further damage to your hot water system or plumbing. Replacing an outdated or malfunctioning unit with a newer model can restore the proper water flow and ensure you enjoy a consistent, steady supply of hot water at optimal pressure.

Temperature Issues

This is another frustrating issue that people experience or have experienced at some point in their lives.

If your hot water is no longer reaching the desired temperature, running out too soon, or constantly fluctuating between hot and cold, it could indicate that your water heater is struggling to function. One common underlying cause is a failing heating element, which is responsible for warming the water in the tank. Over time, heating elements may wear out. In turn, this keeps the water lukewarm or makes it take much longer to heat up. Another potential culprit could be a faulty thermostat–the mechanism which regulates the water heater temperature.

While repairs might resolve these issues temporarily, an old or malfunctioning unit will usually continue to struggle with maintaining consistent water temperatures. By upgrading to a new hot water system, you’ll receive a more steady supply of hot water that consistently reaches your chosen temperature. Modern units are also designed to heat water more effectively and use less power, so it’s really a win win. 

High Utility Bills

Because of the current cost-of-living pressures, this one may be a little more tricky to gauge. However, high or irregular utility bills could be an indicator that something has gone awry with the hot water system. 

In this case, we recommend monitoring your water use between two different billing periods. If your water usage has remained the same and it has suddenly spiked (beyond a reasonable level), the answer might just be a brand-new unit.

The situation will naturally differ depending on various circumstances. Despite this, it never hurts to play it safe and get an experienced hot water plumber to look into it.

A Few Benefits of Upgrading to a New Hot Water System

So, you’ve noticed one or more of the signs listed above–what should you do next? The most logical move is to call your plumber and get them to conduct an inspection of the tank and its components. Whether it’s a bit old or beyond repair, there are various scenarios where getting it replaced is ultimately the best decision.

Upgrading to a new hot water system offers several benefits, including improved energy efficiency, more reliable performance, better water flow, and consistent temperatures. Overall, installing a new hot water system improves your day-to-day comfort, reduces maintenance issues, and even increases the value of your home or business.

For reliable installation and maintenance, contact us for hot water service Hervey Bay, Coral Cove, and  St Helens.

What Are Your Replacement Options?

Electric

Electric hot water systems, such as Rheem and Dux, are affordable and easy to install, with costs ranging from $450 to $1,500 depending on system size. Your property will need a reliable electricity supply and space for the hot water tank, making them ideal for smaller homes.

Gas

Popular brands like Bosch and Rinnai offer gas heaters, with installation costs between $900 to $2,000. Your property will need a gas line connection and proper ventilation, especially for indoor units, making them suitable for homes with higher hot water usage.

Heat Pump

Brands like Stiebel Eltron and Sanden provide energy-efficient heat pumps, with installation costs ranging from $3,300 to $4,000. These systems require a well-ventilated outdoor area, as they rely on ambient air to heat water.

Solar

Solar systems from Apricus and Rinnai offer long-term savings, with installation costs between $3,600 and $7,000. Your property needs ample roof space with good sun exposure, and often a backup electric or gas booster for overcast days.

Make sure to check out our recent article for a detailed breakdown of every option!

Get a Professional Hot Water Service with PlumbCall

A hot water service plays an invaluable role in our daily lives. This is why it never hurts to play it safe, keep an eye out for warning signs, and contact PlumbCall for professional advice. Our licensed plumbers can perform all types of hot water repairs and installations. 

Our plumbers serve various areas of Australia and we take great pride in the work we do. When hiring us for hot water plumbing, you’ll receive a 100% money back guarantee, a quick response, and a high standard of workmanship.