Heating
Underfloor Heating: The Efficient Comfort Solution for Modern Homes
Underfloor hydronic heating is transforming the way Australians heat their homes. As an increasingly popular choice for energy-efficient and comfortable living, hydronic underfloor heating systems offer a silent, invisible, and consistent source of warmth that rises naturally from the ground up. At Eco Building Supplies, we specialise in providing sustainable, performance-driven solutions—including water-based underfloor heating that suits a wide variety of residential and commercial projects.
What Is Hydronic Underfloor Heating?
Hydronic underfloor heating is a radiant heating system that circulates warm water through a network of pipes installed beneath the floor. This warm water heats the floor surface, which then radiates heat evenly throughout the room. Unlike forced-air systems or radiators, there are no fans, ducts, or visible heating elements. The result is a more natural and energy-efficient way to heat indoor spaces. This system can be powered by various heat sources such as:
- Natural Gas boilers
- Heat pumps
- Wood Fires
Each option allows for tailored energy efficiency and aligns with eco-conscious building goals.
Key Benefits of Hydronic Underfloor Heating
Energy Efficiency
One of the most significant advantages of hydronic underfloor heating is its low running temperature. Water-based systems typically operate between 30°C to 50°C, far lower than the 70°C+ required by traditional radiators. This makes it ideal for pairing with renewable energy sources like solar or geothermal.
Even Heat Distribution
Unlike wall-mounted units or ducted systems, underfloor heating distributes warmth uniformly across the entire room. Say goodbye to cold spots and enjoy consistent comfort in every corner.
Invisible and Space-Saving
Since the system is embedded beneath the floor, there’s no need for radiators or vents. This leaves walls free for furniture placement and design flexibility—perfect for modern, minimalist interiors.
Allergy-Friendly
Hydronic underfloor heating does not rely on air circulation, meaning less dust, pollen, and allergens are moved around the home. It’s a healthier heating solution, especially for those with asthma or allergies.
Quiet Operation
No humming air conditioners and radiators or noisy fans—just silent, consistent heat. Once installed, a hydronic underfloor system is virtually maintenance-free and operates silently in the background of everyday life.
Installation Considerations
Suitable Floor Types
Hydronic underfloor heating is compatible with a range of flooring materials, including:
- Tile
- Polished concrete
- Stone
- Laminate
- Engineered timber
It’s important to use flooring with good thermal conductivity to maximise system efficiency.
Best for New Builds or Major Renovations
Due to the subfloor installation and pipework required, hydronic systems are most cost-effective when integrated during the construction phase or as part of a significant renovation. Retrofitting is possible but may involve higher costs and structural work.
Floor Height and Insulation
Because the system involves laying piping and insulation layers, floor height may be slightly raised. High-quality insulation is crucial to ensure that the heat travels upward into the room rather than downward into the slab.
How It Works
- Design and Layout: The heating zones are carefully planned based on room sizes, usage, and insulation levels.
- Pipe Installation: Flexible polyethylene or PEX pipes are embedded within the screed or under a suspended timber floor.
- Heat Source Connection: The system is connected to a boiler, heat pump, or used in conjunction with solar powered systems.
- Control Systems: Smart thermostats and zoning controls allow for precise temperature management across different areas.
- Operation: Warm water flows through the pipes, heating the floor surface which then radiates heat upward.
Ideal Applications
Hydronic underfloor heating is incredibly versatile and can be installed in:
- Living areas and bedrooms
- Kitchens and bathrooms
- Open-plan homes
- Commercial offices and retail spaces
It’s also well-suited for homes seeking sustainable energy integration, particularly those using solar or geothermal sources.
Cost and Value
Initial Investment
Hydronic systems have a higher initial installation cost than electric alternatives, primarily due to the pipework and integration with a boiler or pump. However, this is offset by:
- Lower long-term energy costs
- Greater efficiency over large areas
- Reduced maintenance expenses
Long-Term Efficiency
Once operational, a hydronic system is one of the most energy-efficient heating methods available. The savings on power bills over time make it an excellent investment, especially in colder climates or for high-usage households.
Why Choose Eco Building Supplies?
At Eco Building Supplies, we take pride in providing top-tier hydronic underfloor heating solutions backed by expert advice and dependable customer support. Our systems are sourced from trusted Australian manufacturers and designed for seamless integration into energy-conscious homes.
We offer:
- Free design consultations
- Supply of high-efficiency components
- Professional installation and advice
- Competitive pricing on eco-friendly systems
Start Your Underfloor Heating Journey Today
Whether you’re planning a new build or looking to upgrade your current heating system, hydronic underfloor heating delivers unmatched comfort, efficiency, and sustainability. Contact Eco Building Supplies today for a tailored solution that meets your performance, budget, and lifestyle needs.
Experience the comfort of radiant heat—beneath your feet.
The Mini Cube
Our own developed Eco Building Supplies MiniCube system is specially developed for the growing Agriculture sector in Australia. This innovative new heating design saves farmers on average 20-30% in heating cost compared to conventional systems.
The MiniCube system uses a LPG or natural gas that heats water via a highly efficient boiler. The warm water then goes from the boiler through the flow pipe into the heat exchange. From there, the heat gets transferred into the second sealed system. The water goes through the flow pipes, through the circulating pumps and into the flow manifolds. The warmth then goes into the heat pads inside the farrowing sheds to the heat pads for the piglets. From there, the cooler water goes back into the return manifold back through the heat exchange, where the process gets repeated.
Another great advantage is that we custom build the system uniquely to the owner’s specification; this allows us to use it for farrowing sheds and Chicken Farms, Nurseries, Wineries or Animal Boarding Kennels.
Our qualified plumbers have over 25 years of experience in the Hydronic Heating industry.
Frequently Asked Questions (FAQs)
How does underfloor heating work?
Underfloor heating uses radiant heat from warm water pipes installed beneath the floor to evenly heat a room from the ground up.
Is underfloor heating expensive to run?
Hydronic systems are energy-efficient and cheaper to run than electric systems or traditional heating, especially when paired with solar or heat pumps.
Can underfloor heating be installed in existing homes?
Yes, but it’s easier and more cost-effective during new builds or major renovations. Retrofitting may require lifting floors or adjusting levels.
Which flooring is best for underfloor heating?
Tiles, stone, polished concrete, and engineered timber are ideal due to their high thermal conductivity. Carpet and solid wood can be used with care.
How long does it take for underfloor heating to warm up?
Electric systems heat up quickly (30–60 mins), while hydronic systems take longer (2–3 hours) but retain heat more efficiently.
Can underfloor heating be used as the main source of heating?
Yes, in most modern, well-insulated homes, underfloor heating is sufficient on its own, especially hydronic systems.
Is underfloor heating safe?
Absolutely. It runs at low temperatures, has no exposed hot surfaces, and is safe for children and pets. It is a perfect system for families with allergies.
How long does underfloor heating last?
Hydronic systems can last 25–50 years or more with minimal maintenance, especially if high-quality components are used.
Does underfloor heating increase floor height?
Slightly—usually by 20–50mm, depending on the system type and insulation requirements.
Can I control underfloor heating with a thermostat?
Yes. Modern systems come with programmable thermostats, and many offer smart home integration for zone-by-zone control.
