Signs that you may need a new hot water system
How often do you think about your hot water system? For most people, it's something you expect to just work. You turn on the tap, and hot water flows. But when things start going wrong, it usually happens at the worst time. With winter coming up fast, now’s the perfect time to check if your system is showing signs of giving up. A bit of attention to your hot water plumbing now can save you from cold showers and costly breakdowns when the temperature drops.
From electric and gas units to solar and heat pump systems, all hot water systems eventually wear out. Knowing the signs early can help you avoid freezing showers and expensive emergency call-outs. Here's what to keep an eye on before the cold really sets in.
The Warning Signs
1. Inconsistent or Lukewarm Hot Water
If your hot water isn’t staying hot or takes a long time to heat up, your system could be struggling. This can be especially noticeable in the cooler months when cold air and icy pipes make the unit work harder.
Temperature changes often point to a failing thermostat, sediment build-up, or worn-out parts. In an electric hot water system, heating elements can wear down over time. In gas systems, the issue might come from a faulty burner or control valve.
Pro Tip: When your water starts running hot one minute and cold the next, that’s your system telling you it’s under pressure. If it keeps happening, it's worth having a licensed hot water plumber inspect it. In many cases, it's more sensible to replace the whole unit rather than keep repairing it.
2. Rising Energy Bills for No Clear Reason
A sudden jump in your power or gas bill could mean your hot water system is no longer efficient. As systems age, they lose their ability to heat water quickly and efficiently. This is especially true for older electric hot water systems and gas units that use outdated technology.
Buildup inside the tank or worn-out components can cause the system to work overtime just to keep up with demand. That extra workload shows up on your energy bill.
Pro Tip: If your usage habits haven’t changed but your bill has gone up, it might be time to look at a replacement. A new solar hot water system or heat pump hot water system can reduce your running costs and provide more reliable performance.
3. Strange Noises Coming from Your System
If your hot water system has started making odd sounds like banging, popping, or hissing, that’s another sign it may need replacing. These noises usually come from sediment build-up inside the tank. As the water heats up, the sediment hardens and creates pressure.
That pressure can cause damage inside the tank, eventually leading to leaks or cracks. Flushing the system can help in some cases, but if the damage is too far along, a replacement might be the only option.
Pro Tip: Your system should run quietly. If it sounds more like a boiling kettle or something knocking around inside, it's time to get it looked at before things get worse.
4. Leaks, Rust or Visible Corrosion
Even a small leak can be a big problem. If you’ve noticed water pooling around your system or rust forming on any of the parts, it’s a clear sign the system is wearing out.
Rust and corrosion usually mean the tank’s protective lining is breaking down. Most tanks have a sacrificial anode that helps delay this process, but once that has corroded, the tank itself starts to deteriorate. If you're seeing discoloured water, it might be rust from inside the tank.
Pro Tip: Leaks can cause water damage to your home and create a perfect environment for mould. These issues don't fix themselves. If you spot rust or water where it shouldn’t be, it’s best to arrange a full system replacement before things go from bad to worse.
5. Your System Is Over 10 Years Old
Hot water systems are not built to last forever. Most systems last between 8 and 12 years. After that, they start to lose efficiency, require more repairs, and become more prone to faults.
If your system has been running for a decade or more, now’s a good time to start thinking about an upgrade. Don’t wait for it to fail completely. Older systems are more expensive to run and often can’t keep up with the demands of a busy household.
Pro Tip: You can usually find the manufacture date on a sticker or label on the side of the tank. If your unit is on the older side, get it checked before winter. A planned hot water system replacement is always better than an emergency one.
Don’t Risk a Cold Winter!
Book Your Hot Water System Replacement Today
Winter is almost here, and it's not the time to take chances with your hot water. If you’ve noticed any of the signs above, your system might be on its way out. The good news is, you can avoid the stress by acting early.
At Jet Blaster Man, we handle all types of hot water system replacements, including electric hot water systems, gas hot water system, solar, and heat pump hot water system. Get ahead of the cold and call us at Jet Blaster Man today. No one wants to be caught out mid-winter with no hot water!
