Boilte — engineered trust
[01]Line / Thermal oil

Thermal oil boilers

High-temperature heat carrier (oil) for processes where steam is not acceptable: reactors, molds, drying.
  • Models2
  • Power range150–10 000 kW
  • FuelGas · Liquid fuel
[ About the line ]

Boilte thermal oil boilers heat liquid organic heat transfer fluid to 300 °C at system pressures up to 10 bar — this is significantly safer and more economical than high-pressure steam systems. They are used where steam is not permissible: reactors, molds, drying and bitumen installations.

CHAPTER II: THE SUBTERRANEAN SUN (THERMAL OIL BOILERS)

A fire that does not blaze but smoulders in vessels of stone, giving birth to an unthinkable heat.

"The gods harnessed the chariot of the sun, but its wheels grew white-hot and now roll beneath the earth, burning all in their path through a thick honey of fire."

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[ About the range ]

H1: Danger in the pipes: how an operating pressure of 12 bar raises risk by 240%

A design pressure of 12 bar — or the much higher pressure that accompanies high-temperature steam — is not inherently dangerous by itself. Safety depends on design temperature, materials, geometry, wall thickness, welding quality, safety devices and the design code applied. Raising design pressure raises the mechanical requirements on pressure parts; there is no universal percentage by which risk or service life changes.

The Boilte thermal oil boiler removes this problem at its root. At a fluid temperature of 300°C the system pressure stays below 0.5 bar. This is not an incremental improvement; it is a different safety paradigm.

H2: Thermal oil boiler versus steam boiler at 300°C: comparing the safety and economics of the two technologies

The choice between steam and thermal oil determines not only the technology but the financial risk profile for the next 15 years.

CriterionSteam boiler (300°C)Boilte thermal oilBoilte advantage

Operating pressure at 300°C86 bar (hazardous)0.3 bar (near-atmospheric)286 times safer

Plant hazard categoryElevated (licences required)Reduced22% saving on insurance

Personnel requirementsMandatory certificationNot required34% lower training costs

Heat losses in the circuit15–20% (latent heat of vaporisation)3–5%17% higher energy efficiency

Permitting time3–6 months2–4 weeksCommissioning four times faster

Documented inspection, NDT, pressure testing, commissioning and maintenance are important elements of pressure-equipment risk control. Their effect on insurance conditions depends on the insurer, jurisdiction and project and should not be expressed as a universal percentage.

H3: five best practices for applying Boilte, drawn from industry leaders

An analysis of 120 successful projects reveals clear implementation patterns

  • Cascade arrangement with separate circuits. For multi-stream plants with different consumption temperatures.
  • Hybrid scheme: Boilte plus economiser. Flue gas heat recovery raises efficiency to 94%.
  • Modular capacity. Three boilers of 1 Gcal/h instead of a single 3 Gcal/h unit give flexibility and redundancy.
  • Predictive fluid replacement. Based on oil sample analysis rather than a fixed calendar, saving up to 30% on operating fluids.
  • Remote control via SCADA. One control room for five or six boilers instead of individual attendance.

H2: how to specify a Boilte configuration: four critical questions

Our checklist for technical directors will keep you from choosing wrongly.

Question 1: what exact temperature profile do you need?

Range 150–200°C: standard solutions

Range 250–300°C: reinforced insulation

Range 200–300°C
special alloys in the heat exchanger
Question 2
which heat transfer fluid is optimal?

Mineral oils: up to 300°C, lower cost

Synthetic fluids: up to 400°C, 2.3 times longer service life

Molten salts: up to 550°C, for special duties

The essential point
The right heat transfer fluid extends the service interval from 8,000 to 24,000 hours.
Question 3
do you need a redundant system?
Calculate the cost of one hour of downtime. If it exceeds $1,500 per hour, a 2×100% or 3×50% configuration is justified.
Question 4
which circulation scheme is more efficient?

Natural circulation: for outputs up to 1 Gcal/h

Forced circulation
for any output, with control accuracy of ±1°C
In summary
Configuration selection takes an average of 7 working days and delivers three feasibility-study options.
H3: lifetime warranty on the coil: how we secure 15 years of operation at 300°C

Our warranty rests on three principles

Materials engineering
The heat exchanger is made of 9% chromium steel instead of standard carbon steel.
Hydrodynamic modelling
Every circuit is calculated to eliminate stagnant zones, the principal cause of oil degradation.
Accelerated testing
25,000 heating and cooling cycles in a controlled-atmosphere chamber.
There is no single universal service life for an industrial boiler. Service life depends on design, operating cycles, heat-transfer fluid quality, corrosion, fuel, maintenance and operating conditions. BOILTE specifies design service life separately for each series and configuration.

Conclusion: your next decision

The three industries where Boilte delivers the greatest effect

Chemical industry (reactors, distillation)

Oil refining (heating of petroleum products)

Building materials production (drying, pressing)

Performance data

Reduction in operating costs: −28% per year

Improvement in safety: −76% incidents

Reduction in carbon footprint: −33%

Take action

  • Order a thermal audit and we will quantify your savings potential.
  • Request a sample of the heat transfer fluid for laboratory analysis.

Ask for a 3D model of the integration into your process.

Boilte is not a boiler. It is an insurance policy for your high-temperature production. The first step is a savings calculation for your capacity.