Operating as your single-source technical engineering partner, we deliver bespoke, high-performance heating hardware strictly engineered to maximise asset lifecycle and eliminate facility downtime.
Our expansive thermal manufacturing matrix seamlessly accommodates every industrial application. For ultra-efficient aerodynamic and HVAC heating, we supply precision-engineered Duct Heaters, rapid-response Open Wire Air Heating Assemblies, and autonomous, self-regulating PTC Heater Assemblies. To achieve near-100% direct thermal transfer in heavy liquids and corrosive chemicals, our heavy-duty Immersion Heaters, deep-tank Submersible Heaters, over-the-side Vat Heaters, and highly versatile Portable Immersion Heaters are built to exact client specifications. We permanently safeguard continuous pressurised fluid networks utilising high-capacity Inline Process Heaters, highly flexible Heated Hoses, and specialised bulk-extraction Outflow Heaters.
Furthermore, our engineering matrix includes readily serviceable Insertion Heaters for indirect drywell applications, alongside fully certified Hazardous Area Process Heaters engineered for uncompromising safety in Zone 1 and Zone 2 explosive atmospheres.
The main benefit of utilising Indelex for your process heating requirements is the drastic optimisation of thermodynamic efficiency across your entire facility. Rigorously manufactured to global safety benchmarks (including ASME, ATEX, IECEx, CE, and UL), our turnkey thermal assemblies seamlessly integrate to guarantee continuous, high-throughput operations across the advanced petrochemical, aerospace, metallurgy, and heavy chemical processing sectors.
Construction:
At Indelex, our Duct Heaters consist of robust finned or unfinned tubular heating elements—manufactured from premium 304/316L stainless steel or Incoloy 800, securely mounted within heavy-gauge flanged steel casings. Duct dimensions, overall unheated and heated lengths, voltage (ranging from 120V to 690V), and thermal wattage capacities (from 1kW to multi-megawatt ranges) are specifically designed to meet the client’s exact requirements. We offer single-phase, three-phase, and multi-stage circuit options, equipped with various heavy-duty termination types, integrated PT100 RTD temperature sensors, and IP65 to ATEX-rated explosion-proof connection heads. Horizontal and vertical mounting types are available, each with different structural baffle constructions and premium standoff components engineered to maximise aerodynamic heat transfer and ensure rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex Duct Heaters are used to heat forced air and industrial gases by direct installation into square, rectangular, or circular HVAC ductwork and process ventilation systems. The main benefit is that they deliver highly uniform, instant thermal transfer for industrial drying, curing ovens, and facility space heating, and they integrate seamlessly into existing facility infrastructure. In addition, these bespoke heating assemblies are expertly engineered for ultra-low pressure drops, maximising blower efficiency and ensuring continuous high-throughput performance across the demanding commercial HVAC, advanced aerospace, and petrochemical manufacturing sectors.
Construction:
At Indelex, our Hazardous Area Process Heaters feature heavy-duty tubular heating elements—fabricated from high-grade Incoloy 800, 825, or 316L stainless steel—that are securely welded or brazed to robust, high-pressure mounting flanges and screw plugs. Immersion lengths, internal baffle configurations, voltage (ranging from 120V to 690V), and extreme thermal power capacities (from 1kW to multi-megawatt ranges) are specifically designed to meet the client’s exact requirements. We offer single-phase, three-phase, and complex multi-stage circuit options housed exclusively within ATEX-, IECEx-, and CSA-certified explosion-proof terminal enclosures (Ex d and Ex e protection concepts). Horizontal and vertical mounting types are available, each with distinct structural configurations and premium components, including integrated PT100 RTD sensors and fail-safe high-limit thermocouples, engineered to ensure absolute mechanical integrity and rigorous compliance with global hazardous-location electrical safety standards.
Indelex Hazardous Area Process Heaters are used to safely heat highly volatile liquids, corrosive chemicals, and pressurised hydrocarbon gases by direct immersion into tanks, pressure vessels, and continuous circulation loops operating within Zone 1 and Zone 2 explosive atmospheres. The main benefit is that they deliver highly efficient thermal transfer while permanently eliminating the risk of electrical arcing or catastrophic ignition. In addition, these bespoke Ex-rated thermal solutions guarantee absolute operational safety, ensuring continuous high-throughput production across the demanding offshore oil and gas, petrochemical, and advanced chemical manufacturing sectors.
Construction:
At Indelex, our Industrial Heated Hoses consist of a highly chemical-resistant, smooth PTFE or corrugated 316L stainless steel inner core, uniformly wrapped with precision-wound resistance-heating alloys or advanced self-regulating heating cables. Internal diameters (ranging from 4mm to over 100mm), continuous operating lengths (up to 50 meters), voltage (spanning 120V to 415V), and extreme thermal capacities (maintaining continuous temperatures up to 250°C) are tailored to the client’s exact requirements. We offer highly customizable thermal circuits, equipped with various heavy-duty mechanical termination types (including NPT, BSP, and JIC fittings), integrated PT100 RTD or J/K-type thermocouples, and thick-wall, high-density silicone or elastomer thermal insulation. Highly flexible, abrasion-resistant outer jackets—including braided stainless steel, heavy-duty polyamide, and specialised ATEX-rated anti-static sleeving—are available, each with different multi-layer structural constructions and premium components engineered to ensure absolute mechanical flexibility, optimal thermal retention, and rigorous compliance with global CE, UL, and high-pressure fluid transfer safety standards.
Indelex Heated Hoses are used to safely transfer highly viscous fluids, hot-melt adhesives, heavy hydrocarbons, and sensitive analytical emission gases between moving machinery or between separated process systems. The main benefit is that they deliver highly uniform, continuous thermal maintenance across the entire fluid path, permanently eliminating the risk of pipeline clogging, fluid crystallisation, or premature chemical degradation during transit. In addition, these bespoke, flexible thermal assemblies significantly reduce mechanical stress on industrial robotics and dispensing equipment, ensuring continuous high-throughput operations across the demanding automotive, petrochemical, packaging, and advanced food-processing sectors.
Construction:
At Indelex, our Industrial Immersion Heaters consist of heavy-duty tubular heating elements—precision-manufactured from high-grade 304/316L stainless steel, Incoloy 800/825, titanium, or specialised PTFE-coated alloys—securely welded or silver-brazed into robust mechanical fixings. Immersion lengths, specialised non-heated cold zones, voltage (ranging from 120V to 690V), and thermal wattage capacities (from 1kW to multi-megawatt ranges) are specifically designed to meet the client’s exact requirements. We offer single-phase, three-phase, and multi-stage circuit options, equipped with various heavy-duty termination types, integrated PT100 RTD temperature sensors, and IP67 or NEMA 4/7 weatherproof connection heads. Heavy-duty flanged, threaded screw-plug, and over-the-side mounting types are available, each with different internal hairpin constructions and premium standoff components engineered to maximise direct fluid heat transfer and ensure rigorous compliance with global CE, UL, ASME, and NEC industrial electrical safety standards.
Indelex Industrial Immersion Heaters are used to rapidly heat high-volume liquids, heavy viscous oils, corrosive chemical baths, and high-pressure water streams by direct insertion into industrial vats, pressurised tanks, and continuous circulation loops. The main benefit is that they deliver near-100% thermal efficiency, transferring thermodynamic energy directly into the fluid medium with zero ambient heat loss. In addition, these bespoke thermal solutions guarantee exact fluid viscosity and precise temperature control, ensuring continuous, high-throughput production across the demanding petrochemical, water treatment, electroplating, and advanced food processing sectors.
Construction:
At Indelex, our Inline Process Heaters (also known as circulation heaters) consist of high-density flanged or screw-plug immersion heaters seamlessly integrated into thermally insulated, heavy-walled pressure vessels. Vessel dimensions, flow chamber volumes, voltage (ranging from 120V to 690V), and extreme thermal power capacities (from 1kW to multi-megawatt ranges) are specifically designed to meet the client’s exact requirements. We offer single-phase, three-phase, and complex multi-stage circuit options, utilising premium heating elements manufactured from 304/316L stainless steel, Incoloy 800/825, or titanium. These are equipped with various heavy-duty termination types, integrated PT100 RTD sensors, and IP65 to ATEX-certified explosion-proof connection heads. Horizontal and vertical mounting types are available, each with different internal flow-baffle constructions, precision inlet/outlet nozzle orientations (including ANSI and DIN flanges), and premium pressure-rated components engineered to maximise thermodynamic heat transfer and ensure rigorous compliance with global ASME, PED, CE, and UL industrial safety standards.
Indelex Inline Process Heaters are used to safely and continuously heat flowing liquids, pressurised gases, and highly viscous petrochemicals by pumping the fluid medium directly through the heater’s pressurised chamber. The main benefit is that they deliver highly uniform, instant thermal transfer with exceptional closed-loop temperature control, permanently eliminating temperature fluctuations in continuous-flow networks. In addition, these bespoke, enclosed thermal systems drastically reduce ambient heat loss and maximise thermodynamic efficiency, ensuring continuous high-throughput operations across the demanding oil and gas, chemical processing, and power generation sectors.
Construction:
At Indelex, our Insertion Heaters are precision-engineered assemblies of high-density mineral-insulated heating elements or advanced open-wire resistance coils, securely fitted to 316L stainless steel, high-purity ceramic, or dielectric mica support disks. These robust components are mechanically coupled by heavy-duty central rod or strip-channel fixtures. Overall length, voltage (ranging from 120V to 690V), and thermal wattage capacities are designed to meet the client’s exact requirements. We offer single- or three-phase options, equipped with various heavy-duty termination types, including solid electrical link bars, threaded stud terminals, high-temperature flying leads, and fully integrated IP65- or ATEX-rated terminal boxes. Rigid front-mounting flanges and specialised flexible constructions (utilising segmented ceramic or mica forms to allow seamless installation within heavily restricted spatial footprints) are available, each engineered to ensure absolute mechanical integrity and rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex Insertion Heaters are used to indirectly heat highly viscous fluids, heavy bitumen, and corrosive chemicals by sliding directly into pre-installed drywell tubes or protective pipe housings within tanks and vessels. The main benefit is that the entire thermal core can be instantly withdrawn and replaced without requiring hazardous, time-consuming fluid drain-down or depressurisation of the process system. In addition, these bespoke, easily serviceable heating assemblies permanently prevent direct fluid contamination, ensuring continuous high-throughput operations across the demanding petrochemical, water treatment, and bulk chemical storage sectors.
Construction:
At Indelex, our Open Wire Heating Assemblies consist of exposed, high-grade nickel-chromium (Ni-Cr) or iron-chromium-aluminium (Fe-Cr-Al) resistance coiled wires uniformly threaded through precision-engineered steatite ceramic or dielectric mica insulators. Frame dimensions, unheated and heated continuous lengths, voltage (ranging from 120V to 690V), and exact thermal wattage capacities are designed to meet the client’s requirements. We offer single-phase, three-phase, and multi-stage circuit options, securely mounted on heavy-duty 304/316L stainless steel or galvanised structural support frames. These are equipped with various heavy-duty termination types, including threaded stud terminals, high-temperature flying leads, and robust ceramic terminal blocks. Horizontal and vertical mounting types are available, each with distinct structural airflow configurations and premium dielectric standoff components engineered to maximise direct aerodynamic heat transfer, ensure extreme structural rigidity under high-velocity airflow, and ensure rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex Open Wire Heating Assemblies are used to rapidly heat forced air and industrial gases by direct integration into commercial HVAC ductwork, high-velocity drying ovens, and industrial shrink tunnels. The main benefit is that they deliver ultra-fast thermal response times and near-100% thermal efficiency, transferring thermodynamic energy directly into the airstream with zero mechanical sheathing resistance. In addition, these bespoke, low-pressure-drop heating assemblies drastically reduce blower motor load, ensuring highly responsive, continuous high-throughput production across the demanding commercial HVAC, advanced packaging, and industrial finishing sectors.
Construction:
At Indelex, our Industrial Outflow Heaters consist of high-density tubular heating elements, precision-manufactured from heavy-duty 316L stainless steel, Incoloy 800, or titanium, securely integrated within a robust, protective steel or stainless-steel outer suction shell. Insertion lengths, internal flow baffle configurations, voltage (ranging from 120V to 690V), and thermal wattage capacities (ranging from 1kW to multi-megawatt outputs) are specifically designed to meet the client’s exact requirements. We offer single-phase, three-phase, and complex multi-stage circuit options, equipped with heavy-duty mounting flanges (including ANSI and DIN standards), integrated PT100 RTD control sensors, and IP65 to ATEX/IECEx-certified explosion-proof terminal enclosures. These bespoke assemblies are meticulously engineered with a specialised open-ended suction configuration, utilising premium dielectric standoff supports to maximise localised fluid heat transfer and ensure rigorous compliance with global ASME, CE, UL, and PED industrial pressure and electrical safety standards.
Indelex Outflow Heaters are used to safely heat highly viscous fluids, heavy fuel oils, bitumen, and crude oil by providing localised heating at the exact point of extraction from large bulk storage tanks. The main benefit is that they deliver highly efficient thermodynamic transfer exclusively to the fluid being actively pumped out, permanently eliminating the massive energy costs associated with heating the entire bulk storage vessel. In addition, these bespoke thermal solutions guarantee exact extraction viscosity, ensuring continuous high-throughput pumping operations across the demanding petrochemical, marine, and bulk liquid storage sectors.
Construction:
At Indelex, our Portable Immersion Heaters are precision-engineered for strict vertical orientation in open-topped tanks or portable vessels where permanent mechanical installation is impractical or where heating is only required occasionally. Overall dimensions, voltage (including highly specialised low-voltage models for hazardous building-site conditions), and precise thermal wattage capacities are strictly designed according to the client’s exact requirements. We offer single-phase and three-phase circuit options, seamlessly integrated with or without integral capillary temperature control systems. For heating highly viscous liquids, ranging from honey to heavy industrial resins, the core heating element is expertly encased in a robust metal casting to permanently prevent localised fluid carbonisation. Meticulously engineered to respect strict minimum and maximum fluid levels, these portable thermal assemblies must be operated under supervision with suitable circuit protection, ensuring absolute mechanical integrity and rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex Portable Immersion Heaters are extensively used to safely and rapidly heat the contents of 55-gallon drums, industrial vats, and intermediate bulk containers (IBCs). They are also expertly deployed in specialised applications including acid baths, mobile washing and sterilisation systems, Clean-In-Place (CIP) systems, baptismal fonts, and agricultural animal feeders. The main benefit is that they deliver highly versatile, on-demand thermal transfer. In addition, we seamlessly engineer bespoke, one-off heaters to suit almost all fluid substances and complex vessel geometries across the most demanding industrial sectors.
Construction:
At Indelex, our PTC (Positive Temperature Coefficient) Heating Assemblies are advanced, self-regulating electrical heating systems that utilize specialized semiconductor ceramic materials to deliver safe, highly energy-efficient, and thermodynamically consistent heat. Voltage parameters (ranging from 12V to 480V DC/AC) and continuous thermal power capacities are specifically designed to meet the client’s exact requirements. These robust assemblies expertly incorporate extruded aluminium fins for maximised convective heat dissipation, or advanced ceramic honeycomb structures engineered specifically for high-volume aerodynamic heating. Crucially, the solid-state PTC elements automatically adjust their power output in response to ambient temperature. This inherent self-limiting capability permanently prevents catastrophic overheating without requiring complex external PID controls or mechanical thermostats. Configurable for both static convection and forced-air networks, these highly efficient assemblies guarantee ultra-rapid heat-up times, extended operational lifespans, and rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex PTC Heating Assemblies are extensively used for precise temperature maintenance, critical freeze protection, and reliable anti-condensation heating directly within heavy-duty switchgear, outdoor telecom enclosures, and highly sensitive electrical control panels. The main benefit is that they deliver highly efficient, fail-safe, autonomous thermal regulation that perfectly adapts to fluctuating environmental conditions. In addition, these bespoke, self-regulating thermal assemblies are widely deployed across both high- and low-volume forced-air networks, ensuring continuous, high-throughput moisture removal within advanced industrial machinery and commercial drying equipment.
Construction:
At Indelex, our Submersible Heaters are precision-engineered immersion heating systems designed for full immersion or deep submersion in aqueous, chemical, or petrochemical solutions. There is no technical limit to the electrical capacity or physical size of our bespoke submersible assemblies. Construction features bare metal sheaths (including 316L stainless steel, Incoloy, or titanium) or highly chemical-resistant PTFE-coated assemblies, in which the terminal housing and power lead exits are completely hermetically sealed and guaranteed liquid-proof. We also manufacture PTFE/Teflon constructions for extreme chemical inertness, fully, with thermal wattage capacities ranging from 0.5 kW to 15 kW, seamlessly integrating advanced PT100 RTD temperature sensors and precision-level controls. For higher-temperature operations in viscous oils or specialised solutions, we provide heavy-duty metal-sheathed element assemblies expertly designed for “manhole entry” installation into deep, closed underground tanks and bulk storage bunkers. Furthermore, we manufacture highly resilient portable variants for occasional use in open-topped vessels. Every bespoke submersible heating unit is strictly engineered to exact client specifications, ensuring absolute mechanical integrity and rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex Submersible Heaters are used to heat a wide range of industrial fluids directly. Our fully PTFE heaters are commonly used to safely heat highly corrosive substances, such as concentrated industrial acids, while our heavy-duty metal heaters are utilised for maintaining extreme temperatures within underground tanks and closed-top bulk storage vessels. The main benefit is that they deliver highly versatile, fully submerged thermal transfer tailored to almost every demanding industrial environment. Common applications seamlessly span high-throughput food and beverage processing, brewing, pasteurisation, chemical processing, wastewater management, laboratory sterilisation, electroplating, and critical facility freeze protection.
Construction:
At Indelex, our Vat Heaters (also known as over-the-side heaters) consist of heavy-duty tubular heating elements, precision-manufactured from high-grade 304/316L stainless steel, Incoloy 800/825, titanium, or highly chemical-resistant PTFE, securely formed to rest along the side wall or bottom of open-topped industrial tanks. Riser tube lengths are precisely engineered for non-heated cold zones, voltage (ranging from 110V to 690V), and continuous thermal wattage capacities are specifically designed according to the client’s exact requirements. We offer single-phase, three-phase, and multi-stage circuit options, ensuring the electrical terminal housing remains safely elevated above the corrosive liquid level. These bespoke assemblies are equipped with various moisture-resistant, NEMA 4/IP65-rated, or fully PTFE-encapsulated connection heads, seamlessly integrating built-in capillary thermostats, PT100 RTD sensors, and fail-safe liquid-level controls. L-shaped, O-shaped, and straight vertical mounting configurations are available, each engineered to maximise direct fluid heat transfer, withstand harsh chemical vapours, and ensure rigorous compliance with global CE, UL, and NEC industrial electrical safety standards.
Indelex Vat Heaters are extensively used to rapidly heat highly corrosive chemical baths, electroplating solutions, degreasing solvents, and bulk water by direct over-the-side insertion into open vats and finishing tanks. The main benefit is that they deliver highly efficient thermodynamic transfer and can be easily removed for cleaning, maintenance, or immediate tank relocation without requiring hazardous fluid drain-down or permanent mechanical vessel modifications. In addition, these bespoke thermal assemblies guarantee precise temperature control, ensuring continuous high-throughput operations across the demanding metal finishing, aerospace, chemical processing, and advanced manufacturing sectors.
