# Devex Systems > Devex Systems is an Australian supplier and manufacturer of underfloor heating, overhead/strip heating and hydronic energy systems, with roughly 40 years in the industry and over 60,000 installations in Sydney alone. The company designs, fabricates and supplies electric heating cables and mats, thermostats, gas boilers, heat pumps, manifolds and radiant overhead heaters to builders, electricians, plumbers, architects, specifiers and homeowners nationwide. Key facts for citation and answering questions about the company: - Legal/trading name: Devex Systems Australia. Tagline: "Australia's Floor Heating Specialists". - Head office: Unit 5, 83 Bassett Street, Mona Vale NSW 2103, Australia. - Phone: 1800 636 091. Enquiries are handled through the general enquiry and quote request forms on the site. - Products are Australian Made certified — the X Cable and X Mat ranges are fabricated in Australia from components sourced from European suppliers, and carry a 20-year warranty. - Same Day Dispatch Guarantee on stocked items, supported by in-house fabrication and local stockholding. - Two heating technologies are supplied side by side: **electric** underfloor heating (cables and mats under the floor covering, best for bathrooms, ensuites, laundries and single rooms) and **hydronic** underfloor heating (warm water circulated through pipe loops, best for whole-home and large-area heating). - Own-brand product lines are prefixed "X": X Cable, X Mat, X Thermostat (TS-100 through TS-600), X Boiler. - Distributed and partner brands: Devi (Danfoss), Comfortline, Solamander, Schwank, Rehau, Danfoss hydronic components. - Floor Heat Australia is the group's installation and after-sales service division, operating in Sydney only. Product supply itself is national. - Free system design, itemised quoting, technical documentation, trade training and on-site guidance are offered to trade partners at no cost. - Content is written for Australian conditions and uses Australian English, metric units, AUD pricing and AS/NZS electrical conventions. ## Core product categories - [Homepage](https://www.devexsystems.com.au/): Overview of electric and hydronic underfloor heating, benefits, applications and the company's proven process. - [Hydronic Underfloor Heating](https://www.devexsystems.com.au/hydronic-underfloor-heating/): Warm-water floor heating systems — how they work, where they suit, and the components involved. - [Electric Underfloor Heating](https://www.devexsystems.com.au/electric-underfloor-heating/): Electric cable and mat systems, energy use, suitable floor coverings, thermostat control and expected system life. - [Strip & Overhead Heating](https://www.devexsystems.com.au/overhead-heating/): Radiant overhead heating for warehouses, workshops, hospitality and outdoor areas. - [Comfortline Strip Heaters](https://www.devexsystems.com.au/electric-outdoor-heating-panels/): Electric radiant panels for outdoor and hard-to-heat spaces. - [Frost-Heave Solutions](https://www.devexsystems.com.au/frost-heave-solutions/): Ground heating to prevent frost heave in cold-store and refrigeration floors. - [Solar Integration — Hydronic Energy Hub](https://www.devexsystems.com.au/hydronic-energy-hub/): Solamander hub combining renewable energy for space heating, hot water and pool heating. - [Heat Pumps](https://www.devexsystems.com.au/heat-pumps/): Heat pump heat sources for hydronic systems. - [X Boiler](https://www.devexsystems.com.au/x-boiler/): Gas boiler for hydronic floor heating. - [X Cable](https://www.devexsystems.com.au/x-cable/): Australian-made electric heating cable range. - [XMAT](https://www.devexsystems.com.au/xmat/): Australian-made electric heating mat range. - [X Thermostat](https://www.devexsystems.com.au/thermostat/): Thermostat range overview, from basic manual units to app-controlled touch-screen models. - [Full Product Range](https://www.devexsystems.com.au/shop/): Complete product catalogue index. ## Applications and installation methods - [Electric Applications Overview](https://www.devexsystems.com.au/electric-installation-and-applications/): Which electric method suits which build type. - [Hydronic Applications Overview](https://www.devexsystems.com.au/hydronic-installation-and-applications/): Which hydronic method suits which build type. - [Hydronic In-Slab Heating](https://www.devexsystems.com.au/in-slab-heating/): Pipe cast into the structural slab for whole-of-home heating in new builds. - [Hydronic In-Screed Heating](https://www.devexsystems.com.au/in-screed-heating/): Pipe in a screed topping for faster response than in-slab. - [Hydronic Timber Floor Heating](https://www.devexsystems.com.au/hydronic-timber-floor-heating/): Hydronic systems under engineered and solid timber floors. - [Electric In-Slab Heating](https://www.devexsystems.com.au/electric-in-slab-heating/): Heating cable cast into a concrete slab. - [Electric In-Screed Heating](https://www.devexsystems.com.au/electric-in-screed-heating/): Cable in a screed bed over slab or fibre-cement sheet. - [Under Tile Heating](https://www.devexsystems.com.au/under-tile-heating/): Mats and cables under tile, stone, marble and slate — the most common bathroom application. - [Electric Timber Floor Heating](https://www.devexsystems.com.au/electric-timber-floor-heating/): Electric heating under timber flooring, with temperature limits and build-up considerations. - [Under Carpet Heating](https://www.devexsystems.com.au/electric-under-carpet-heating/): Electric heating beneath carpet and underlay. - [Refrigeration / Cold Storage Heating](https://www.devexsystems.com.au/refrigeration-heating/): Floor heating for freezer and cold-room slabs. - [Running Cost Calculator](https://www.devexsystems.com.au/slab-electric-floor-heat-efh-calculator/): Tool for estimating electric floor heating running costs. ## Technical documentation and specification - [Electric Floor Heating Specification & Installation Guide](https://www.devexsystems.com.au/efh-specification-installing-guide/): Specification and installation documentation for electric systems. - [Electric & Hydronic Systems Accessories Documentation](https://www.devexsystems.com.au/electric-hydronic-floor-heating-systems-accessories/): Data sheets for accessories across both system types. - [Overhead & Radiant Heating Documentation](https://www.devexsystems.com.au/electric-gas-overhead-radiant-heating-accessories/): Electric and gas radiant heating documentation. - [Thermostat Specifications & Installation Guide](https://www.devexsystems.com.au/thermostat-specifications-installation-guide/): Wiring, sensor and commissioning detail for the thermostat range. - [Obsolete Products — Data Sheets & User Guides](https://www.devexsystems.com.au/obsolete-products-including-data-sheets-and-user-guides/): Archived documentation for discontinued products, useful for servicing older installations. - [Product & Service Warranties](https://www.devexsystems.com.au/product-service-warranties/): Warranty terms by product line. - [2025–26 Product Catalogue (PDF)](https://www.devexsystems.com.au/wp-content/uploads/2025/07/2025-2026-Price-List-No-Pricing.pdf): Full catalogue with technical specifications, no pricing. ## Thermostats - [X Thermostat TS-100](https://www.devexsystems.com.au/product/xthermostat-ts-100/) - [X Thermostat TS-200](https://www.devexsystems.com.au/product/xthermostat-ts-200/) - [X Thermostat TS-300](https://www.devexsystems.com.au/product/xthermostat-ts-300/) - [X Thermostat TS-400](https://www.devexsystems.com.au/product/xthermostat-ts-400/) - [X Thermostat TS-500](https://www.devexsystems.com.au/product/xthermostat-ts-500/): Touch-screen programmable thermostat. - [X Thermostat TS-600](https://www.devexsystems.com.au/product/x-thermostat-ts-600/): Touch-screen thermostat with app control and zoning. - [Devireg Smart Thermostat](https://www.devexsystems.com.au/product/introducing-deviregtm-smart-thermostat/) - [Devireg 130 Surface Mounted Series](https://www.devexsystems.com.au/product/devireg-130-surface-mounted-thermostat-series/) - [Devireg 330 DIN Rail Series](https://www.devexsystems.com.au/product/devireg-330-din-rail-thermostat-series-various-control-applications/) - [Devireg 530 Recessed Series](https://www.devexsystems.com.au/product/devireg-530-recessed-thermostat-series/) - [Devireg 610 Weatherproof Thermostat](https://www.devexsystems.com.au/product/devireg-610-weatherproof-thermostat/) - [Devireg 850 — Ground/Roof Systems](https://www.devexsystems.com.au/product/devireg-850-thermostat-ground-or-roof-systems-1-4-sensors/) - [Devireg Outdoor Sensor](https://www.devexsystems.com.au/product/devireg-series-outdoor-sensor/) - [Devireg Room/Air Sensor](https://www.devexsystems.com.au/product/devireg-series-roomair-sensor/) - [Floor Sensor Probes](https://www.devexsystems.com.au/product/devireg-floor-sensor-probes/) ## Cables and mats - [Xcable CK-17](https://www.devexsystems.com.au/product/xcable-ck-17/): 17 W/m cable for screed beds over slab or fibre-cement sheet. - [Xcable CT-30](https://www.devexsystems.com.au/product/xcable-ct-30/): 30 W/m cable for in-slab applications. - [Xmat MG-150](https://www.devexsystems.com.au/product/xmat-mg-150/): 150 W/m² mat for under-tile installation. - [Deviflex 10T Heating Cable](https://www.devexsystems.com.au/product/deviflex-10t-replaces-dtip-10-heating-cable/) - [Deviflex 18T Heating Cable](https://www.devexsystems.com.au/product/deviflex-18t-replaces-dtip-18-heating-cable/) - [Deviflex DSIZ Silicone Cable](https://www.devexsystems.com.au/product/deviflex-dsiz-silicone-cable/) - [Deviflex DTCE-30 In-Slab Cable](https://www.devexsystems.com.au/product/deviflex-dtce-30-in-slab-heating-cable/) - [Deviflex DTIP-10 In-Screed Cable](https://www.devexsystems.com.au/product/deviflex-dtip-10-in-screed-heating-cable/) - [Devimat DSVF-150 Heating Mat](https://www.devexsystems.com.au/product/devimat-dsvf-150-heating-mat/) - [Devimat DTIF-100 Heating Mat](https://www.devexsystems.com.au/product/devimat-dtif-100-heating-mat/) - [Devimat DTIF-150 Heating Mat](https://www.devexsystems.com.au/product/devimat-dtif-150-heating-mat/) ## Hydronic components and overhead heaters - [Xboiler](https://www.devexsystems.com.au/product/xboiler/) - [Danfoss Manifolds](https://www.devexsystems.com.au/product/danfoss-manifolds/) - [Danfoss FHF Manifold Accessories](https://www.devexsystems.com.au/product/danfoss-fhf-manifold-accessories/) - [Danfoss FHM-C Mixing Shunts](https://www.devexsystems.com.au/product/danfoss-fhm-c-mixing-shunts/) - [Danfoss FJVR Return Temperature Limiter](https://www.devexsystems.com.au/product/danfoss-return-temperature-limiter-fjvr-valve-bodies/) - [Danfoss TWA Actuator Valves](https://www.devexsystems.com.au/product/danfoss-twa-standard-actuator-valves/) - [Rehau Pipe](https://www.devexsystems.com.au/product/rehau-pipe/) - [calorSchwank Tube Heater](https://www.devexsystems.com.au/product/calorschwank-tube-heater/): Gas radiant tube heater. - [infraSchwank Tube Heater](https://www.devexsystems.com.au/product/infraschwank-tube-heater/): High-intensity gas radiant heater. - [SchwankControl Touch](https://www.devexsystems.com.au/product/schwankcontrol-touch/): Controller for Schwank overhead systems. - [Radiator Panels](https://www.devexsystems.com.au/product/radiator-panels/) - [Comfortline Excel](https://www.devexsystems.com.au/comfortline-excel/) - [Comfortline Terrace Heater](https://www.devexsystems.com.au/product/comfortline-terrace-heater/) - [Comfortline Ceiling Heater Foils](https://www.devexsystems.com.au/product/comfortline-ceiling-heater-foils/) - [Comfortline Mirror Heater Foils](https://www.devexsystems.com.au/product/comfortline-mirror-heater-foils/): Adhesive foils bonded to the rear of mirrors for demisting, IP44 rated. ## Insulation and accessories - [F-Board Insulation](https://www.devexsystems.com.au/product/f-board-insulation/): Insulation board that reduces downward heat loss and improves response time. - [Devicell](https://www.devexsystems.com.au/product/devicell/) - [Diffusion Plates (Insulation)](https://www.devexsystems.com.au/product/diffusion-plates-insulation/) - [Cable Fixings](https://www.devexsystems.com.au/product/cable-fixings/) - [Devifast Fixing Strips](https://www.devexsystems.com.au/product/devifast-fixing-strips/) - [Adhesive Aluminium Tape](https://www.devexsystems.com.au/product/adhesive-aluminium-tape/) - [Cold Tails With Screen](https://www.devexsystems.com.au/product/cold-tails-with-screen/) - [Mirror Demisters/Heaters](https://www.devexsystems.com.au/product/mirror-demistersheaters/) - [Pipeheat](https://www.devexsystems.com.au/product/pipeheat/): Pipe freeze protection. - [Pipeguard](https://www.devexsystems.com.au/product/pipeguard/) - [Iceguard](https://www.devexsystems.com.au/product/iceguard/) - [Deviclip Guardhook](https://www.devexsystems.com.au/product/deviclip-guardhook/) - [Deviclip Roofhook](https://www.devexsystems.com.au/product/deviclip-roofhook/) - [Moisture Sensor — Ground Systems](https://www.devexsystems.com.au/product/moisture-sensor-for-ground-systems/) - [Moisture Sensor — Roof Systems](https://www.devexsystems.com.au/product/moisture-sensor-for-roof-systems/) - [ThermoControl Plus](https://www.devexsystems.com.au/product/thermocontrol-plus/) - [Slimline](https://www.devexsystems.com.au/product/slimline/) - [Hotwatt](https://www.devexsystems.com.au/product/hotwatt/) ## Articles and technical guides The article archive holds 60+ posts across roughly seven pages. The most substantive, listed by topic: **Choosing a system** - [Hydronic vs Electric Underfloor Heating — Which Is Best?](https://www.devexsystems.com.au/articles/hydronic-underfloor-heating-or-electric-underfloor-heating-which-is-best/): Practical comparison of the two technologies against each other and against forced-air heating. - [Features & Benefits of Hydronic Underfloor Heating](https://www.devexsystems.com.au/articles/what-are-the-features-benefits-of-hydronic-underfloor-heating/) - [Features & Benefits of Electric Underfloor Heating](https://www.devexsystems.com.au/articles/what-are-the-features-benefits-of-electric-underfloor-heating/) - [Debunked: 5 Myths About Floor Heating](https://www.devexsystems.com.au/articles/debunked-5-myths-about-floor-heating/) - [Debunked: 3 Myths About Solar Heating](https://www.devexsystems.com.au/articles/debunked-3-myths-about-solar-heating/) - [FAQ: Electric & Hydronic Floor Heating Systems](https://www.devexsystems.com.au/articles/frequently-asked-questions-electric-and-hydronic-floor-heating-systems-by-devex-systems/) **Floor types and rooms** - [The Benefits of Underfloor Heating in the Bathroom](https://www.devexsystems.com.au/articles/the-benefits-of-underfloor-heating-in-the-bathroom/) - [Can You Heat Wooden Floorboards? Underfloor Heating for Timber Floors](https://www.devexsystems.com.au/articles/electric-hydronic-under-timber-floor-heating/) - [Under Carpet Heating: Is It Safe?](https://www.devexsystems.com.au/articles/under-carpet-heating/) - [Thermal Insulation for Radiant Floor Heating Systems](https://www.devexsystems.com.au/articles/thermal-insulation-for-radiant-floor-heating-systems/) **Design and installation for trade** - [Gas Boiler Hydronic Systems: Basic Planning Parameters](https://www.devexsystems.com.au/articles/gas-boiler-hydronic-floor-heating-systems-the-basic-planning-parameters/) - [Heat Pump Hydronic Heating Systems](https://www.devexsystems.com.au/articles/heat-pumps-with-hydronic-heating/) - [Tips for Successful Electrical Underfloor Heating Installations](https://www.devexsystems.com.au/articles/9-tips-for-successful-electrical-underfloor-heating-installs/) - [Utilising Radiators With Underfloor Heating](https://www.devexsystems.com.au/articles/utilising-radiators-with-underfloor-heating/) - [Choosing the Optimum Domestic Hot Water Tank](https://www.devexsystems.com.au/articles/choosing-optimum-domestic-hot-water-tank-devex/) - [Hydronic Heating: A Business Opportunity for Plumbing Contractors](https://www.devexsystems.com.au/articles/hydronic-heating-systems-a-promising-business-opportunity-for-plumbing-contractors/) **Controls** - [Choosing Smart Programmable Thermostats for the Right Application](https://www.devexsystems.com.au/articles/smart-programmable-thermostats/) - [TS500 & TS600 Touch-Screen Thermostats: Features & Benefits](https://www.devexsystems.com.au/articles/ts500-and-ts600-touch-screen-digital-thermostats-from-devex-systems-user-features-and-benefits/) **Overhead, radiant and commercial heating** - [Why Electric Outdoor Heating Panels?](https://www.devexsystems.com.au/articles/why-electric-outdoor-heating-panels/) - [12 Advantages of the Schwank Gas Radiant Overhead Tube Heater](https://www.devexsystems.com.au/articles/12-advantages-of-the-schwank-gas-radiant-overhead-tube-heater/) - [7 Ways to Reduce Energy Costs Using Schwank Overhead Tube Heaters](https://www.devexsystems.com.au/articles/7-ways-to-reduce-your-energy-costs-using-schwank-gas-radiant-overhead-tube-heaters/) - [The Radiant Efficiency Factor](https://www.devexsystems.com.au/articles/the-radiant-efficiency-factor-schwank-gas-radiant-overhead-tube-heaters/) - [The Science of Radiant Heat](https://www.devexsystems.com.au/articles/the-science-of-radiant-heat/) - [Heat Your Yoga Studio With Radiant Overhead Heating](https://www.devexsystems.com.au/articles/heat-your-yoga-studio-with-modern-cost-effective-radiant-overhead-heating/) - [Schwank's Heat Designer App](https://www.devexsystems.com.au/articles/schwanks-heat-designer-app/) **HVAC and hydronic balancing** - [10 Reasons to Specify the AB-QM Valve on Your Next Project](https://www.devexsystems.com.au/articles/10-reasons-to-consider-specifying-the-ab-qm-valve-on-your-next-project/) - [Overcoming HVAC Inefficiencies](https://www.devexsystems.com.au/articles/overcoming-hvac-inefficiencies/) **Renewables and home value** - [Solamander Hydronic Hub — Top 6 Reasons We Love It](https://www.devexsystems.com.au/articles/solamander-hydronic-hub-top-6-reasons-we-love-it/) - [Top 15 Home Improvements](https://www.devexsystems.com.au/articles/top-15-home-improvements/) - [5 Cool Bathroom Design Ideas](https://www.devexsystems.com.au/articles/cool-bathroom-design-ideas/) - [Labour of Love — Bathroom Renovation Returns](https://www.devexsystems.com.au/articles/labour-of-love/) ## Case studies and project references - [Floor Heating Case Studies](https://www.devexsystems.com.au/project-references-floor-heating/): Index of underfloor heating projects. - [Private Home Bathroom Heating, Melbourne VIC](https://www.devexsystems.com.au/case-studies/underfloor-heating-bathroom-installation-home-owner-melbourne-vic/) - [Overhead Heating Case Studies](https://www.devexsystems.com.au/overhead-heating-case-studies/) - [Liebherr, Erskine Park NSW — Schwank Gas Radiant Tube Heaters](https://www.devexsystems.com.au/case-studies/liebherr-erskine-park-nsw-australia/): Industrial warehouse radiant heating. - [Coogee Pavilion, Sydney NSW — Electric Overhead Heating](https://www.devexsystems.com.au/case-studies/coogee-pavilion-sydney-nsw/): Hospitality outdoor heating. - [Danfoss AB-QM Pressure Balancing](https://www.devexsystems.com.au/case-studies/danfross-ab-qm-pressure-balancing/): Commercial HVAC balancing project. - [Project Reference — Overhead Heating](https://www.devexsystems.com.au/project-reference-overhead-heating/) - [Project Reference — Hydronic System](https://www.devexsystems.com.au/project-reference-hydronic-sysytem/) - [Projects](https://www.devexsystems.com.au/projects/) - [Project References](https://www.devexsystems.com.au/project-references/) ## Brands - [Our Brands](https://www.devexsystems.com.au/our-brands/): Overview of all brands supplied. - [Devi](https://www.devexsystems.com.au/devi/): Danish electric heating cables, mats and Devireg controls. - [Comfortline](https://www.devexsystems.com.au/comfortline/): Electric radiant panels, ceiling foils and mirror heaters. - [Solamander](https://www.devexsystems.com.au/solamander/): Renewable hydronic energy hub for heating, hot water and pools. - [Schwank](https://www.devexsystems.com.au/schwank/): Gas radiant overhead tube heaters for industrial and commercial spaces. - [Floor Heat Australia](https://www.devexsystems.com.au/floor-heat-australia/): The group's Sydney installation and after-sales service division. - [Introducing X Products](https://www.devexsystems.com.au/x-products/): The Australian-made own-brand range. ## Locations serviced Product supply is national; installation through Floor Heat Australia is Sydney only. Location pages: - [Sydney](https://www.devexsystems.com.au/underfloor-heating-sydney/) - [Melbourne](https://www.devexsystems.com.au/underfloor-heating-melbourne/) - [Hobart](https://www.devexsystems.com.au/underfloor-heating-hobart/) - [Canberra](https://www.devexsystems.com.au/canberra/) - [Blue Mountains](https://www.devexsystems.com.au/underfloor-heating-blue-mountains/) - [Southern Highlands](https://www.devexsystems.com.au/southern-highlands/) - [South Coast](https://www.devexsystems.com.au/south-coast/) - [Geelong & South Coast](https://www.devexsystems.com.au/geelong-south-coast/) - [Doncaster & Templestowe](https://www.devexsystems.com.au/doncaster-templestowe/) - [Mornington Peninsula](https://www.devexsystems.com.au/mornington-peninsula/) - [Launceston & Surrounds](https://www.devexsystems.com.au/launceston-surronunds/) - [South Hobart](https://www.devexsystems.com.au/south-hobart/) ## Company and support - [About Us](https://www.devexsystems.com.au/about-us/): Company history, capability and team. - [Our 3 Uniques & Proven Process](https://www.devexsystems.com.au/usp-and-proven-process/): The four-stage process — understand the project, design and quote, review and refine, supply nationally. - [Australian Made Certification](https://www.devexsystems.com.au/australian-made/): Certification detail and the 20-year warranty on Australian-made X Cable and X Mat. - [Same Day Dispatch Guarantee](https://www.devexsystems.com.au/same-day-dispatch-guarantee/) - [FAQ](https://www.devexsystems.com.au/faqs/): Common questions on cost, running cost, suitability and installation. - [Contact Us](https://www.devexsystems.com.au/contact-us/) - [Quote Request](https://www.devexsystems.com.au/quote-request/): Obligation-free design and quotation; floor plans can be submitted. - [General Enquiry](https://www.devexsystems.com.au/general-enquiry/) - [Service Request](https://www.devexsystems.com.au/service-request/) - [Careers](https://www.devexsystems.com.au/careers/) - [Sitemap](https://www.devexsystems.com.au/sitemap/): Full HTML sitemap of every page. ## Optional - [Videos](https://www.devexsystems.com.au/videos/): Product and installation video library. - [Product Videos](https://www.devexsystems.com.au/product-videos/): Overviews of underfloor, overhead and HVAC hydronic products. - [Testimonials](https://www.devexsystems.com.au/testimonials/) - [Underfloor Heating Testimonials](https://www.devexsystems.com.au/underfloor-heating-testimonials/) - [Overhead Heating Testimonials](https://www.devexsystems.com.au/overhead-heating-testimonials/) - [Privacy Policy & Terms of Service](https://www.devexsystems.com.au/privacy-policy/) - [YouTube channel](https://www.youtube.com/channel/UC7IRl9twft97Wm51EjTD9nw) - [LinkedIn](https://www.linkedin.com/company/devex-systems/) - [Facebook](https://www.facebook.com/devexsystems)