Electric underfloor heating for Australian homes and commercial projects.
Heat Zone supplies DEVI electric heating systems, design and technical support Australia-wide, from a single ensuite to apartments, hotels, aged care and cold stores.
One supplier for indoor comfort and outdoor protection
Electric heating cables and mats do far more than warm a bathroom floor. Choose an application to see how it works and which products suit it.
Under-tile floor heating
Thin heating mats or cables set in tile adhesive directly under the tiles. Fast to warm up, ideal for bathrooms, ensuites and kitchens in new builds and renovations.
In-screed and in-slab heating
Heating cable laid in a sand-cement screed or concrete slab. The mass stores heat and releases it evenly, which suits whole-home heating and open-plan spaces.
Timber and floating floors
A dry system with no screed. Aluminium-topped plates spread heat from a low-output cable under floating timber, laminate or engineered boards.
Pipe frost protection
Self-limiting cable fixed along water pipes and under insulation stops them freezing and bursting in exposed or unheated locations.
What is electric underfloor heating?
Electric underfloor heating uses thin heating cables or mats laid under the floor finish. They warm the floor surface, which then heats the room evenly from the ground up, with no ducts, radiators or draughts. A thermostat with a floor sensor controls the temperature, and a licensed electrician connects the system.
The cable or mat can sit in tile adhesive, in a screed or concrete slab, or under timber on DEVIcell plates. The same technology keeps ramps free of ice, pipes from freezing and soil warm for crops.
Which system suits your project?
| System | Where the heating goes | Best suited to | DEVI products |
|---|---|---|---|
| Under-tile | Mat or cable in the tile adhesive (2.5–3.5 mm) | Bathrooms, kitchens and renovations | DEVImat, DEVIcomfort, DEVIheat |
| In-screed / in-slab | Cable in screed or concrete, on insulation | New builds, larger areas, commercial floors | DEVIflex 18T, 10T |
| Timber and floating | Low-output cable in DEVIcell plates, dry install | Timber, laminate and engineered boards | DEVIcell, DEVIflex 10T |
| Snow and ice melting | Cable in concrete, asphalt or under pavers | Ramps, stairs, paths and loading areas | DEVIsnow 30T |
| Frost protection | Self-limiting cable on pipes, gutters and roofs | Exposed pipes, gutters and downpipes | DEVIpipeheat, DEVIiceguard |
| Agricultural | Cable in soil, seed beds, animal floors or on vine wire | Greenhouses, livestock, vineyards | DEVIflex 10T, 18T |
Built for commercial projects, not just bathrooms
Beyond the single bathroom, Heat Zone supports builders, electrical contractors, architects and developers on multi-residential, hospitality, healthcare and industrial projects across Australia.
- Design from drawings. Output, cable or mat layouts and controls for every area.
- Specification support. Full engineered drawings from DEVI by Danfoss, plus DEVI specification and tender text for architects and consultants.
- Project pricing. Itemised by room, level or stage.
- Supply planned around your build program. Heating elements, controls and installation materials.
- Handover documentation. Test records and warranty paperwork for each system.
Apartments and multi-residential
Bathroom and living-area heating across every unit.
Hotels and hospitality
Warm ensuites plus hot water temperature maintenance.
Healthcare, aged care and education
Even floor warmth and hot water for hospitals, aged care, schools and childcare.
Cold storage and warehousing
Frost-heave protection under freezer floors.
Sports and recreation
Frost-free pitches and turf through winter.
Agriculture
Livestock floors, seed beds and vineyard frost protection.
warranty
Covered for the product, the installation and the floor
DEVI's Full-service warranty on heating cables and mats covers more than a replacement element. If a product fails, it also pays for the installation work and the floor materials above it, for 20 years.
- 20 yearsProduct, installation and floor: DEVImat, DEVIcomfort, DEVIheat, DEVIflex, DEVIsnow
- 10 yearsDEVIcell
- 5 yearsDEVIreg Touch, DEVIpipeheat, DEVIiceguard
- 2 yearsControllers such as DEVIreg 330, Multi and 850 IV, and accessories
Support that fits the job you're doing
Stock, specs and trade pricing
Mat and cable sizing, thermostat wiring, installation materials and warranty paperwork. Call us from site if a layout doesn't add up.
Open a trade account →Systems specified to the plans
Residential and commercial builds. Send drawings and floor finishes. We'll recommend the system, output and controls, and price it per room or per project.
Send us your plans →Clear advice before you renovate
Find out which system suits your floor, what it will cost to run, and who can install it. Installation must be done by a licensed electrician.
Estimate running costs →Stock DEVI through Heat Zone
Tiered trade pricing, product catalogues and technical backup for your counter staff and the electricians you supply.
Become a stockist →DEVI heating systems we stock and support
European-engineered cables, mats and controls from DEVI, a Danfoss brand. Every range is supplied with the installation materials and documentation to match.
Image: DEVIDEVImat 150T
Thin twin-conductor mat on a self-adhesive mesh, laid straight into the tile adhesive. Only 3.5 mm high.
- Bathrooms, ensuites, kitchens
- Under tile and in screed
Image: DEVIDEVIheat 150S
Braided-screen single-conductor mat with two cold leads. At 2.5 mm high, the thinnest mat in the DEVI range.
- Low build-up renovations
- Under tile and in screed
Image: DEVIDEVIflex 18T
Twin-conductor cable you space to suit the output you need. Fits irregular rooms and works under tile or in screed and slabs.
- Irregular room shapes
- In-screed, in-slab, cold stores
Image: DEVIDEVIcell
Aluminium-topped insulation plates with ready-made grooves for DEVIflex cable. Dry installation under floating floors, no screed.
- Timber, laminate, parquet
- New floors over existing floors
Image: DEVIDEVIreg Touch
Programmable thermostat with a 2" touch screen, set-up wizard and optimum start/end control. Available in several colours and frames.
- All indoor floor systems
- Room and floor sensing
Image: DEVIDEVIreg Display Connect
Smart thermostat with an integrated display, Bluetooth and Zigbee 3.0. Control it from anywhere with the DEVI Connect app and gateway.
- Remote control via app
- Room and floor sensing
From enquiry to a warm floor
Tell us about the project
Room sizes, floor finish, slab or timber subfloor, and what you want the system to do.
Design and quote
We size the output, lay out the cable or mat, choose controls and send an itemised quote.
Supply
Heating elements, thermostats, sensors and installation materials, ready for site.
Licensed installation
Use your own electrician, or we can organise installation with one of our trusted installation partners.
Warranty and support
Register the warranty and keep the test results. We're a phone call away after handover.
Recent projects
From a single home renovation to aged care villages, cold stores and a Grand Designs house: DEVI systems we've supplied across Victoria.
Hütt 01, Coburg
Under-tile heating in three bathrooms and slab heating downstairs for an off-grid passive house featured on Grand Designs Australia.
Ryman Healthcare retirement villages
Floor heating for 181 bathrooms at Ocean Grove, supplied as one pack per bathroom and continuing across Ryman's Victorian villages.
CSL Behring, Broadmeadows
Frost and condensation protection for a multi-level warehouse storing vaccines and medicines at down to −30 °C.
Guides and project notes
How much does underfloor heating cost to run?
A simple way to estimate what an electric floor will add to your power bill, with worked examples for a bathroom and a living area.
Under-tile mat or loose cable: which one?
Both sit under your tiles and both use the same heating technology. The difference is in the room shape and the installation.
Choosing the right output: a W/m² guide
Why 150 W/m² suits one bathroom and 200 W/m² suits another, and what the floor covering has to do with it.