GAS DUCTED HEATING SERVICES
Gas Ducted Heating Replacement Melbourne
Upgrade your old gas heater to a modern, energy-efficient system. Expert removal, installation and VEU rebates available.
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If your gas ducted heater is over 15-20 years old, struggling to heat your home or costing more to run each winter, it's time for a replacement. At Polygon BG Air & Electrical, we specialise in replacing outdated gas ducted heating systems with modern, high-efficiency alternatives that deliver better warmth, lower gas bills and improved safety.
Older gas heaters — particularly those manufactured before 2000 — often have star ratings of just 1-3 stars. Modern replacements achieve 5-6+ stars, meaning they use significantly less gas to produce the same amount of heat. For many Melbourne homeowners, the gas savings alone can pay for the upgrade within a few years.
We handle the entire replacement process — from removing and responsibly disposing of your old heater, to designing and installing your new system using existing ductwork where possible, to full commissioning and handover. And with VEU rebates available on eligible replacements, upgrading has never been more affordable.
- Complete removal and disposal of old systems
- Modern 5-6 star energy-efficient replacements
- Existing ductwork assessed and reused where possible
- VEU rebates can save thousands on eligible replacements
- Safety inspection of gas connections and flue
- All major brands — Brivis, Braemar, Bonaire
Need help choosing the right solution?
Is It Time?
Signs Your Gas Heater Needs Replacing
Your Heater Is Over 15-20 Years Old
Gas ducted heaters have a typical lifespan of 15-20 years. Beyond this age, heat exchangers can develop cracks that allow carbon monoxide to enter your home — a serious safety risk. Even if your heater still runs, its efficiency and safety may be compromised.
Rising Gas Bills
If your gas bills have been steadily increasing despite similar usage, your heater is losing efficiency. Older systems with low star ratings use significantly more gas than modern alternatives. Upgrading to a 5-star+ system can reduce gas consumption by 30-50%.
Uneven Heating or Cold Spots
If some rooms in your home are warm while others remain cold, it may indicate a failing heater, damaged ductwork or inadequate system capacity. A replacement with properly designed ductwork ensures even, consistent warmth throughout your entire home.
Carbon Monoxide Concerns
Cracked heat exchangers in older gas heaters can leak carbon monoxide — an odourless, invisible gas that poses serious health risks. If your heater produces a yellow or orange flame (instead of blue), gives off unusual smells or causes headaches, have it inspected immediately.
Why Upgrade
Benefits of Upgrading Your Gas Heater
Lower Gas Bills
Modern 5-6 star heaters use up to 50% less gas than older models, delivering significant savings every winter.
Improved Safety
New systems meet current safety standards with modern heat exchangers, flame safeguard systems and flue designs.
Better Comfort
More consistent heating, improved airflow and quieter operation compared to aging systems.
VEU Rebates
Eligible Melbourne homeowners can access substantial rebates through the Victorian Energy Upgrades program.
Smart Control
Modern systems are compatible with smart thermostats and Wi-Fi controllers for convenient remote access.
Environmental Impact
Higher efficiency means lower gas consumption and reduced carbon emissions — better for the environment.
Speak with one of our specialists today
Why Us
Why Choose Polygon BG Air & Electrical
Licensed Technicians
Fully licensed and qualified HVAC and electrical professionals you can trust.
Honest Pricing
Transparent quotes with no hidden fees. You'll know exactly what you're paying.
Fast Turnaround
Quick response times and efficient installations to minimise disruption.
Melbourne-Wide Service
Covering all Melbourne metro, inner suburbs and surrounding areas.
HVAC & Electrical In One Place
One team for all your heating, cooling and electrical needs.
Workmanship Guarantee
Every job backed by our workmanship guarantee for your complete peace of mind.
Ready to get started?
Reviews
What Our Customers Say
"Replaced our ancient Brivis heater with a brand new 6-star model. The difference is night and day — heats faster, runs quieter and our gas bill has dropped significantly. Polygon BG were excellent throughout."
John T.
1 month ago
"The VEU rebate made the replacement incredibly affordable. Polygon BG handled all the paperwork and the installation was completed in a single day. Very happy with the new system."
Marie S.
2 weeks ago
"Our old heater was 25 years old and the technician found a cracked heat exchanger during inspection. Polygon BG organised a fast replacement and we feel much safer with the new system."
Frank K.
3 weeks ago
FAQ
Frequently Asked Questions
Replace Your Old Gas Heater Today
Upgrade to a modern, efficient gas ducted heater with VEU rebates. Free quotes, fast installation, expert service.