A well-maintained heater doesn't just work better—it lasts longer, operates more safely, and costs less to run. Yet many Australians pull their heaters out of storage each winter without a second thought, never realising that a few simple maintenance tasks could dramatically improve their heating experience.
This guide covers everything you need to know about maintaining your heater, from pre-season checks to ongoing care throughout the winter months.
Why Heater Maintenance Matters
Regular maintenance provides multiple benefits that far outweigh the small investment of time required:
- Safety: Dust accumulation and worn components are leading causes of heater fires
- Efficiency: A clean heater operates up to 20% more efficiently than a dirty one
- Longevity: Proper care can double or triple your heater's lifespan
- Performance: Maintained heaters heat faster and more evenly
- Air quality: Clean heaters don't circulate dust and allergens
Pre-Season Maintenance Checklist
Before firing up your heater for the first time each winter, work through this comprehensive checklist:
Visual Inspection
- Check the power cord for cracks, fraying, or damage
- Inspect the plug for signs of heat damage or discolouration
- Examine the heater body for cracks, dents, or rust
- Verify all knobs, buttons, and controls are intact
- Check that safety grilles are secure and undamaged
đźš« Stop if You Find Damage
If you notice any damage to power cords, plugs, or the heater body, do not use the heater. Have it inspected by a qualified technician or replace it entirely. Using a damaged heater is a serious fire and electrocution risk.
Cleaning
After months in storage, heaters accumulate dust that can affect performance and even pose fire hazards. Thorough cleaning is essential before first use.
- Unplug the heater and allow it to cool completely
- Use a vacuum with a brush attachment to remove dust from vents and grilles
- Wipe exterior surfaces with a damp cloth (never use water on electrical components)
- For fan heaters, carefully clean fan blades if accessible
- Check filters and clean or replace as needed
Functional Testing
After cleaning, test your heater in a well-ventilated area:
- Turn on at the lowest setting first
- Listen for unusual sounds—grinding, buzzing, or clicking
- Watch for smoke, sparks, or unusual smells
- Test all heat settings and ensure the thermostat responds correctly
- Verify the tip-over switch works (carefully tilt the heater to test)
đź’ˇ First Use Smell
A slight burning smell during the first few minutes of use after storage is normal—it's just dust burning off. However, if the smell persists for more than 15-20 minutes or is very strong, turn off the heater and investigate.
Maintenance by Heater Type
Different heater types have specific maintenance requirements. Here's what you need to know for each type.
Panel Heaters
Panel heaters are relatively low-maintenance but still benefit from regular attention:
- Dust the surface weekly during use
- Vacuum air intake and outlet vents monthly
- Check wall mounting brackets annually for security
- Verify thermostat accuracy by comparing to a room thermometer
Oil Column Heaters
Oil column heaters rarely need internal maintenance, but external care is important:
- Wipe down fins regularly to remove dust buildup
- Check for oil leaks—staining or residue near seams indicates a problem
- Ensure castors roll freely and remain securely attached
- Never attempt to refill the oil—these are sealed units
Fan Heaters and Ceramic Heaters
The fan component requires extra attention:
- Clean intake grilles weekly—these heaters draw in significant air
- Listen for changes in fan sound that might indicate dust buildup
- If accessible, carefully clean fan blades with a soft brush
- Replace air filters according to manufacturer schedules
Infrared Heaters
Keep the heating elements and reflectors clean for optimal performance:
- Clean reflector surfaces gently to maintain heat direction
- Avoid touching heating elements directly
- Check mounting hardware for outdoor installations
- Ensure protective grilles are clean and intact
Ongoing Maintenance During Winter
Maintenance isn't just a pre-season activity. Regular attention during the heating season keeps your heater running at its best.
Weekly Tasks
- Dust exterior surfaces
- Check that nothing has been placed within the one-metre safety zone
- Listen for any changes in operating sounds
Monthly Tasks
- Vacuum vents and grilles
- Check and clean filters if applicable
- Inspect power cord for any new damage
- Test safety features like tip-over switches
🔑 Key Takeaway
The most important ongoing maintenance task is keeping your heater dust-free. Dust acts as insulation on heating elements, reducing efficiency and creating fire risks.
End-of-Season Storage
How you store your heater affects its condition when you need it next year.
- Clean the heater thoroughly before storage
- Allow the heater to cool completely
- Wrap the power cord loosely—never wrap tightly around the heater
- Store in a dry location away from moisture and pests
- Cover with a cloth or store in original packaging if available
- Never store with flammable materials on or near the heater
Signs Your Heater Needs Professional Attention
Some issues require expert intervention. Contact a qualified technician if you notice:
- Persistent burning smells beyond initial use
- Visible sparks or electrical arcing
- The heater trips circuit breakers repeatedly
- Unusual sounds that don't resolve after cleaning
- The heater fails to reach temperature or heat unevenly
- Any physical damage to electrical components
- Oil leaks from column heaters
When to Replace Rather Than Repair
Sometimes replacement makes more sense than repair. Consider replacing your heater if:
- It's more than 10-15 years old
- Repair costs exceed 50% of a new heater's price
- It lacks modern safety features like tip-over protection
- Energy consumption seems to have increased significantly
- The same problem recurs despite repairs
Newer heaters are generally more energy-efficient and include better safety features, making replacement a wise investment in many cases.
Gas Heater Maintenance
Gas heaters require professional attention that goes beyond DIY maintenance. All gas heaters should be serviced by a licensed gas fitter at least every two years, or annually for unflued gas heaters.
Between professional services, you can:
- Ensure ventilation requirements are maintained
- Keep the area around the heater clear
- Watch for yellow or orange flames (should be blue)
- Check for soot deposits around the heater
- Test carbon monoxide detectors monthly
⚠️ Carbon Monoxide Warning
Gas heaters can produce carbon monoxide, an odourless, colourless gas that can be fatal. Install carbon monoxide detectors if you use gas heating, and never block ventilation openings.
Conclusion
Heater maintenance is neither difficult nor time-consuming, but it makes a significant difference to safety, efficiency, and longevity. A few minutes of attention each week and a thorough check at the start of each season will keep your heater running at its best for years to come.
Make maintenance a habit, and you'll enjoy reliable warmth without unexpected breakdowns, excessive power bills, or safety concerns.