Indirect Heaters

a long history
of successful applications

Indirect Heaters have a long history
of successful applications in the oil
and gas industry.
They have been used
in heating operations
of several fluids,
from natural gas
to crude oil.

The main application of Indirect Heaters is heating gas (up to 3.000.000 kcal/h) prior to its pressure reduction and consequently preventing hydrate formation that can occur because of the temperature drop due to the Joule Thomson effect.
The natural gas can also be post-heated in order to adapt to the operation of gas turbines.
Indirect Heaters consist of three basic elements; the fire tube (firebox), the heather shell, and the process coil.

The fire tube is designed to transfer the heat, released by fuel combustion, into water bath.
The shell is designed to contain the heat transfer media which can be: Water, Water + Glycol or Glycol with either natural or forced draft.

The process coil is designed to safely contain the process fluid and to transfer the required heat from the water bath into the process stream.
Indirect Heaters are commonly used in applications requiring maximum bath temperature of 203°F (95°C).

Some typical applications of Indirect Heaters are:

  • High pressure gas and/or oil field production
  • Turbine inlet gas heating in thermo power plants
  • Gas heating at city stations or at spill-offs from the main pipeline
  • High viscosity crude oil heating in order to reduce pumping pressure and increase pipeline capacity


a Socio Unico
Soggetta alla direzione e coordinamento di ENCORE COMBUSTION, LLC

Sede legale:
Via San Damiano 9, 20122 Milano
Sede operativa:
Via Cavriana 14, 20134 Milano

Capitale Sociale € 10.000 i.v.
C.F. / P. IVA / R.I. Milano 11474720965
Fax +39 02 7010 9827

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