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2021 How much does ducted gas heating cost?

Ducted gas heating cost depends partly on the capacity of the system. It can range from $1250–$1500 for a 3 Star 14kW system, $1500–$1750 for a 4 Star 14–18kW system or $2000–$2500 for a 4–5 Star 23–35kW system.

If you're thinking about installing a heating system in your home, consider installing ducted gas heating. Clean, safe and cost-effective, gas has many advantages over electricity, but how much does ducted gas heating cost to install and run?

Read this guide to find out about:

  • Advantages of ducted gas heating
  • Ducted gas heating running costs
  • How much does ducted gas heating cost to install?
  • Getting quotes for ducted gas heating
  • Environmental considerations with ducted gas heating

Advantages of ducted gas heating

If you're debating between different ways to heat your home, it's important to consider the initial supply and installation costs as well as the long-term running costs.

All things considered, you will probably find that gas is a better choice than electricity for several reasons, namely:

  • Lower installation costs
  • Lower running costs
  • Reduced greenhouse emissions

Ducted gas heating is a whole home heating solution that will be customised to your home and your preferences. The main heating unit may be installed outside, in the loft or under the floor, with outlets and ducts hidden inside floors and ceilings where they don't take up vital space.

Ducted gas heating running costs*

Many people switch from electric to gas heating to reduce heating costs, and it's easy to see why. Ducted gas heating systems can be used with either natural gas or LPG, and while LPG is more expensive than natural gas, it's still cheaper than electricity.

Electricity rates are based on kilowatt hours (kWh), while most gas rates are based on megajoules per hour (MJ/h). When MJ/h rates are converted to kWh, a clear comparison emerges. Rates and tariffs will vary, but typically:

  • Electricity costs an average of 30 cents per kWh to run
  • LPG running cost is around 17–20 cents per kWh
  • Natural gas costs about 11–15 cents per kWh to run

For an idea of what this can mean for your energy bills, heating a 170 square metre home can cost up to $1055 per year with the least efficient heating system, while the most efficient ducted gas heating system can reduce this to $160 per year.

Costs will vary depending on your supplier and the area you live in, but in general, gas heating costs less than electricity.

How much does ducted gas heating cost to install?*

Supply and installation of ducted gas heating costs $2500 to $5000 on average, depending on the size of your home and the type of unit.

The cost of ducted gas heating units depends partly on the capacity of the system. Residential heating systems generally range between 14kW for a total heating area of about 130 square metres to 35kW to warm an area of up to 325 square metres. The cost of your system might be:

  • $1250 to $1500 for a 3 Star 14kW system
  • $1500 to $1750 for a 4 Star 14–18kW system
  • $2000 to $2500 for a 4–5 Star 23–35kW system

A system with a higher Energy Star rating will save you more money over time, even if it costs a little more initially. A system may also cost more than another of the same capacity because it has added features, such as a zone system that gives you greater control over the heating in individual rooms.

Getting quotes for ducted gas heating

When you get quotes for ducted gas heating costs from installers or gas heater experts, ask for separate supply and installation quotes so you know how much you're paying. You may save money by having your supplier also install your system for you, but it's good to know the details of the gas heating unit you are buying.

Compare the prices you get from suppliers carefully. When you find the system that has the features you want at the best price, you'll know you've found the best system for you.

Environmental considerations with ducted gas heating

Ducted gas heating is one of the most environmentally-friendly home heating options. They can heat a large space more efficiently than electricity, which is often produced in coal-burning plants.

Once your ducted gas heating is installed, you can make sure your impact on the environment is minimised and save even more on your energy bills by:

  • Setting the thermostat between 18°C and 20°C. Every additional 1°C can add 10% to your heating bill.
  • Using zoning to only heat the rooms you need.
  • Cleaning the filter every month while it's in use.
  • Winter proofing your home to reduce heat loss and help your heating to work more efficiently.

*Cost and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces.

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