In modern industrial systems, controlled liquid heating is not optional — it is a critical operational requirement. Whether the application involves thermal oil, industrial water, glycol, fuels, or other process fluids, selecting a properly engineered heating solution directly affects energy efficiency, operational safety, and equipment lifespan.
At Caldor Heat Engineering SRL, we design and manufacture flanged electric immersion heaters developed specifically for demanding industrial environments, including applications requiring ATEX execution.
Typical Applications
This type of industrial heating element is designed for direct installation into tanks or pressure vessels and is commonly used in:
Thermal oil reservoirs
Hydraulic oil tanks
Industrial water tanks
Chemical and petrochemical installations
Fuel preheating systems
HVAC industrial systems
Food processing liquid heating
Marine and energy sector applications
Wherever liquid temperature control is required, Caldor provides an engineered solution.
Industrial-Grade Construction – Not a Standard Catalog Product
The heater shown is a multi-tubular immersion bundle mounted on an industrial flange, designed to ensure uniform heat distribution and reliable long-term operation.
Key construction features:
MgO-compacted tubular heating elements for optimal heat transfer
Stainless steel sheaths (AISI 304 / 316 / 316L) or special alloys
Surface load calculated according to fluid type
Spacers for proper liquid circulation
Industrial terminal enclosure
Optional PT100 or thermocouple integration
Overtemperature protection systems
Each heater is engineered based on application parameters — not taken from standard stock.
ATEX Execution – Safe Operation in Hazardous Areas
For industries where explosive atmospheres or flammable vapors are present, Caldor Heat Engineering can manufacture these heaters in:
ATEX Zone 1 or Zone 2 configuration
Explosion-proof terminal enclosures
Redundant temperature control systems
Certified safety limiters
Full compliance with European ATEX directives
Suitable for:
Oil & Gas industry
Fuel storage facilities
Chemical plants
Industrial areas with explosive atmospheres
Why Proper Engineering Matters
An incorrectly selected heater often leads to:
Localized hot spots
Oil degradation
Carbon deposits
Increased energy consumption
Unplanned downtime
At Caldor, we calculate:
Required thermal load
Fluid flow characteristics
Operating temperature
Chemical compatibility of materials
Safe surface watt density
The result: longer service life and reduced operating costs.
European Manufacturing – Engineered for Real Industry
All immersion heaters are produced within Caldor Heat Engineering SRL, using certified materials and controlled manufacturing processes.
Client advantages:
European production
Shorter lead times
Direct technical support from the manufacturer
Fully custom-engineered solutions
Seamless integration into existing systems
Need a Heating Solution for Your Tank?
If your tank contains oil, water, or any industrial liquid, we can design the correct immersion heater based on your application.
Please provide:
Fluid type
Tank volume
Target temperature
Available voltage
ATEX requirements (if applicable)
Our engineering team will evaluate and provide a technically optimized solution.