Ducted Heating Cost Calculator
Estimate the cost of ducted gas or reverse-cycle heating in Australia. Choose the home size, the system and whether it is a new install or a replacement.
Your ducted heating details
Your estimate sits within the typical range.
Zoning lets you heat only the rooms in use, it adds upfront cost but cuts running cost and is worth it in larger homes.
Where the money goes
Estimated breakdown for your configuration
💰 Ways to save
- If the ducting is in good condition, replacing only the unit is much cheaper than a full new system.
- Zoning pays for itself over time in a larger home by not heating empty rooms.
or from $36/week over 5 years , indicative finance
How we estimate this
Ducted heating in Australia typically costs $3,500 to $18,000 in 2026 depending on home size and system. Replacing a unit where ducts exist is cheapest; a new ducted reverse-cycle system with zoning across a large home reaches the top.
Pricing reviewed: October 2026.
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Pricing reviewed October 2026. Indicative Australian costs, not a quote.
Understanding ducted heating costs in Australia
Ducted heating in Australia typically costs $3,500 to $18,000 in 2026 depending on home size and system. Replacing a unit where ducts exist is cheapest; a new ducted reverse-cycle system with zoning across a large home reaches the top.
Ducted gas is a common, warm, whole-home option; ducted reverse-cycle costs more but heats and cools. Running new ducting is most of the labour, so replacements with sound ducts are far cheaper.
Frequently asked questions
How much does ducted heating cost in Australia?
Typically $3,500 to $18,000 in 2026 depending on home size and system. Replacing a unit with existing ducts is cheapest; a new ducted reverse-cycle system with zoning costs the most.
Is ducted gas or reverse-cycle better?
Ducted gas is a warm, common heating-only option. Ducted reverse-cycle costs more but heats and cools from one system and is efficient to run, especially with solar.
Are you a trades business?
Everyone on this page is working out what ducted heating costs because they are ready to hire. Put your business right beneath the calculator, in your state, so you are who they find. From $50/mo.