Hydronic heating is often called underfloor or slab heating. It involves running a system of tubes through the floor and then heating them. The average hydronic heating system costs about $60 per square metre in Australia. Hydronic underfloor heating can vary from $30 to $115 per square metre.
Hydronic Heating Costs Across Australia
The cost of installing a hydronic system depends on location. The installer must be a licensed plumber and electrician. If you choose a solar system, this can require additional licensing in some areas. Here are examples of average hourly rates in different parts of Australia for a heating specialist who can install hydronic heating:
City | Average Heating Installation Costs |
Sydney | $25 per hour |
Melbourne | $26 per hour |
Brisbane | $27 per hour |
Canberra | $28 per hour |
Perth | $28 per hour |
Darwin | $37 per hour |
Hobart | $24 per hour |
Adelaide | $27 per hour |
Hydronic systems consist of a series of tubes that are filled with water. The water is heated using gas, electricity, or solar heat. The heat from the warm water is transferred throughout the rest of the room. The temperature rises, so the rest of the room is heated by the radiant heat from the tubes. The cost of the system depends on the size of the system and its heat load. Some systems are more efficient than others, and it pays to shop around.
One factor that affects heated floor cost is the size of the system. A system for the typical bathroom will range between 500 to 1,200 watts or around 175 watts per metre square. Here are some standard operating costs for hydronic heating.
Type | Cost Per Unit |
Electric | 0.26 |
Gas | 0.02 |
Heat Pump | 0.65 |
Solar | 0.00 |
Note: Solar units typically have a gas or electric backup, but when these are not needed, and they cost nothing to operate.
Several factors might influence how much hydronic floor heating cost or other types of hydronic heating will be in your home.
Heating Boiler – The heart of the system is the boiler. Hydronic heating boilers prices vary depending on the size of the unit, brand, and type of heat source. There are many different types of boilers available, and they have different efficiency ratings. More efficient ones might be more expensive initially, but they can save big in the long run. They can cost anywhere from $1,900 to $3,300.
Size of the System – The size of the system will also affect the cost. Many people choose to only install the heating under part of the floor. For instance, they might focus on the area in front of the shower, toilet, or by their bed. A partial system costs less than installing a unit in the entire room.
Type of Installation – Hydronic heating price is also affected by the type of installation. An in-slab installation is typically sandwiched between two sections of the concrete slab. This typically runs about $70 per metre. An in-screed installation involves pouring a thin layer of concrete over the pipes. This type of installation typically runs about $100 per metre.
During or After Renovation – The best time to install hydronic heating is during the renovation. If you decide to do it as an afterthought, then the flooring will have to be torn apart, and this will cost extra. In addition, if you decide to do it as an afterthought, you might have to make adjustments such as rehang doors or cabinets because of the height of the floor changes.
A big part of the hydronic underfloor heating cost is installation. Here are a few tips for hiring an underfloor heating installer.
How to Create an Accurate Estimate
Creating an accurate estimate can be tricky for a hydronic heating system. There are often unforeseen circumstances that can affect underfloor heating cost. Knowing the answers to these questions before you call for an estimate will help your installer give you the most accurate estimate possible.
Licencing and Qualifications
To install hydronic heating, the professional must have a plumber’s licence, electrical licence, and/or gas fitting licence. Additional licences might be required in some areas. You should research the licences that are required before hiring a professional. Here are a few questions that you should ask before hiring a hydronic heating installation specialist.
* The cost data is based on Oneflare and third-party sources