It’s winter: It’s time for a boiler check

Winter in Australia might not come with the snowstorms of Europe, but anyone who's experienced a bone-chilling July morning in Melbourne or a frosty Canberra evening knows how vital a reliable boiler is.

As temperatures drop, our reliance on gas heating shoots up - and so too does the risk of unnoticed faults, dodgy systems, or even potentially dangerous gas leaks.

If you’ve ever walked into your home and thought, “Hmm, does it smell a bit... off?” - don’t brush it off. Gas safety is no joke, and winter is the perfect time for a boiler check, an upgrade, or even a switch to a more energy-efficient system.

Let's explore everything Aussie energy customers need to know to stay warm, safe, and savvy this winter.

How to tell if there’s a gas leak - and what to do about it

That strange odour lingering near your boiler or gas heater? It might be more than just last night’s dinner. Natural gas itself is odourless, but providers add a chemical called mercaptan to give it that distinct ‘rotten egg’ smell - a crucial safety measure.

Here’s what to do if you suspect a leak:

  • Sniff test: That sulphur-like smell is a red flag. Don’t ignore it.
  • Listen closely: Hissing or whistling near a gas line or appliance could mean gas is escaping under pressure.
  • Check appliances: Are your gas appliances burning with a lazy yellow or orange flame instead of a crisp blue? That could signal incomplete combustion: a warning sign.

Feel dizzy, nauseous or tired? These could be symptoms of low-level gas exposure or carbon monoxide poisoning. Open windows and leave immediately.

Take immediate action:

  • Do not use electrical switches or appliances - they could ignite the gas.
  • Open all doors and windows for ventilation.
  • Turn off the gas at the mains if it’s safe to do so.
  • Evacuate the building calmly.
  • Call your gas provider’s emergency line or 000.
  • Don’t re-enter your home until the issue is confirmed safe by a licensed technician.

Why winter is the best time to upgrade your boiler

You might think spring or summer is the ideal season for home upgrades, but when it comes to your boiler, winter is actually the smartest time to act. Why? Because that’s when issues reveal themselves.

Here’s why an upgrade now makes sense:

  • Performance under pressure: If your boiler’s going to fail, it’ll happen in winter, when it’s being used the most.
  • Immediate comfort: An upgrade means better, faster heating and no more battling cold rooms while you wait for the kettle to boil.
  • Energy efficiency: Newer models can be up to 30% more efficient than older units, saving you hundreds annually in gas bills.
  • Increased safety: Modern boilers come with enhanced safety features, such as carbon monoxide monitors and fail-safes.
  • Government rebates: Many states offer rebates for energy-efficient heating upgrades - especially during high-use seasons.

Signs your boiler might be due for retirement:

  • It’s more than 10–15 years old.
  • It takes forever to heat water or rooms.
  • It’s making weird banging or clunking noises.
  • You’ve had it repaired more than twice in the last two years.
  • Your gas bills are mysteriously high.

How to upgrade your boiler the smart way

Swapping out your boiler doesn’t have to be a winter drama. Follow these steps for a smoother, warmer outcome:

  • Assess your current system: Know what you're replacing - is it ducted gas heating, a hydronic system, or a combi boiler? This affects your upgrade options.
  • Get a professional assessment: A licensed heating technician can evaluate your home’s needs and recommend the right size and model.
  • Compare energy efficiency ratings: Look for 4-star or 5-star rated units and ask about potential rebates.
  • Check for compatibility: Ensure the new system works with your existing radiators or ductwork (if any).
  • Choose a reputable installer: Ask for references, read reviews, and always confirm they’re licensed and insured.
  • Book in advance: Winter is peak season for heating pros: book early to avoid the rush (and the cold).

Don’t forget your energy plan

Even the most efficient boiler won’t save you money if you’re on the wrong energy plan. Gas and electricity prices in Australia are volatile, and with winter demand high, now is a great time to review what you're paying.

  1. Are you on a fixed rate or market rate plan?
  2. When was the last time you compared providers?
  3. Are you eligible for winter usage discounts or energy concessions?

Even small savings per unit of gas or electricity can add up big over winter. Don’t assume your current provider is the best deal on the market.

Feeling the chill - or the gas bill? Whether you're looking to upgrade your boiler, check for leaks, or find a better energy plan, our Aussie-based team at Compare Energy is ready to help. Give us a buzz on 1300 790 106 and let’s get your winter sorted - safely, affordably, and efficiently.