At Pirobloc we manufacture thermal fluid heaters for industrial heating. Our heaters are completely manufactured at our facilites as we want to  have absolute control of every single production detail to make sure that we offer the most efficient, reliable and durable thermal oil heaters.

We offer turnkey solutions, which include the design, manufacturing, installation and start-up of thermal fluid heaters, as well as of all those activities and solutions related to thermal fluid technology.

Our commitment is to meet the needs and goals of our customers by offering a customized hot oil heating system.

About Pirobloc





Years of experience


They are the three foundations on which all of our thermal fluid heating systems rely on. We want to guarantee to our customers that our thermal fluid heaters, as well as other equipment we supply, will offer extremely competitive performance, allowing them to maximize their production capacity at the lowest energy cost.


To maximize the productive capacity of our clients, reducing operating costs related to energy consumption.


Facilities to ensure, at all time, the welfare of people and material goods.


Guarantee the reliability of our facilities to ensure interruptions to the process productive will not occur.

At present and aware of the needs of our society in terms of environmental responsibility, we continue to innovate and to be pioneers in the market, since our thermal oil heaters are perfectly recyclable at the end of its useful life.

In addition, all our heaters are supplied with series burners to minimize NOx emissions.

We supply equipment conceived and fully adapted to each particular application.

The description and features of our thermal oil boilers can be seen here.

Our product line includes, in addition to the thermal fluid heaters, the manufacture of heat exchangers, electric steam boilers and gas recovery boilers, all of the highest quality and reliability, following our internal quality system according to DIN EN ISO 9001-2000 and ASME “U” Stamp certification regulations.

A complete range of products focused on offering industrial heating systems which are efficient, safe and reliable for our customers.


We manufacture thermal oil heaters in horizontal and vertical configurations. In their standard version, our heaters are three-pass boilers. With this system, it is easy to achieve efficiency of 85-90%, depending on the temperature of the hot oil, no other losses being produced because of energy transport.

Hot oil boilers have many applications. A large range of temperatures, from -80 to 400 ºC (-110 ºF to 750 ºF), makes this a highly flexible technology, applicable to both the field of industry and services.  In the mid-high temperature range, from 200° C (400° F), thermal oil heaters are, for practical purposes, the only way to provide heat for an industrial process.

These are the main industrial applications for thermal fluid heaters:

  • Storage tank installations
  • Asphalt/bitumen processes
  • Heavy fuel oil (HFO) tanks
  • Resin reactors
  • Solar thermal power plants
  • Rubber and plastics
  • Adhesives
  • Gas processing
  • Distillation columns
  • Heat exchangers
  • Offshore
  • Downstream
  • Drying processes
  • Rotogravure and flexo printing machines
  • Paints
  • Stenter machines
  • Rollers
  • Evaporators
  • Frying machines
  • Presses
  • Etc.

Thermal oil heaters can also be used to produce steam, hot air or hot water indirectly with an available heat exchanger.

The working of an industrial thermal oil boiler is relatively simple. In its interior, there is a heat transfer fluid moving in two concentric coils. Combustion of a fuel such as natural gas, diesel fuel or heavy fuel oil , produces a flame which heats these coils by convection and radiation. Using main circulation pumps, the thermal fluid heaters send the heat-transfer fluid at a certain temperature to its different consumers.

Pirobloc has obtained qualification to make thermal fluid and is under the specific design codes required in countries which require compliance with regulations other than those of the European Union. Furthermore, Pirobloc is qualified to carry out engineering studies for improvement or rationalisation of existing thermal fluid systems, with the aim of improving the efficiency of our customers’ facilities and their energy efficiency.

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We are efficient

We aim to increase productivity, reduce costs and respect the environment.

We are expert

More than 40 years of experience and 1500 projects worldwide.

We are trusted

More than 1000 clients from a wide range of industrial sectors and services.

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