What is district heating?

A district heating is a centralized system of heat generation and distribution that aims to provide domestic hot water (DHW) and heating to different buildings and facilities.

Parts of a district heating

A district heating consists of 3 parts:

  • Power station

This is the part where the heat is generated, usually by a heater, and from which it is distributed in the form of heating and hot water.

  • Distribution system

It is in charge of delivering the hot water to the final consumers.

  • Substation

It is the part closest to the end consumer where the heat exchange between the fluid coming from the boiler and the water takes place to provide DHW and heating service.

What is a biomass district heating?

The biomass district heating is a system able to supply heat in the form of sanitary hot water and/or heating to a network of buildings and installations by means of the combustion of material coming from a biological process.

In recent times, this type of system has become popular, especially in Europe due to certain advantages such as:

  • Possibility of using biomass
  • Reduced implementation cost
  • Increased availability of usable space
  • Reduced installation and assembly time
  • Reduced noise from installations in buildings
  • Saving on the energy bill
  • Greater guarantee and security in the energy supply
  • Regular use of waste energy sources (municipal solid waste or similar) in energy-efficient equipment, thus minimising fossil fuel consumption
  • Reduction of CO2 and greenhouse gas emissions
Biomass heaters in the district heating

Biomass heaters in a district heating system are responsible for generating, through the combustion of material from a biological process, the heat needed to supply services such as domestic hot water (DHW) or heating to the network of buildings and facilities.

This type of biomass heaters and its combustion system must be focused on reliability and continuous operation of the system, due to the constant demand they must meet.

A district heating heater works more than 8,000 hours a year, so it must have an automatic cleaning system and a robust design that prevents unwanted shutdowns.

The type of heater in a district heating can vary between different heat transfer fluids, such as hot water, steam or thermal oil, depending on whether it is a district heating for pure electricity generation or part of a cogeneration.

Although the most popular system is the pusher grate system for combustion of woody biomass, some heat networks work with combustion systems adapted to other fuels, such as fluidized bed, dust injection or fixed grates.

Sugimat and district heating

Sugimat, as a company specialized in the manufacture of industrial boilers, has two district heating:

As part of the Bricker Project, Sugimat supplied a 1.5 MW cogeneration unit.

  • City of Zychlin (Poland):

Supply of a 1.5 MW boiler for the generation of 220 kW electric and 1200 kW thermal at 80 °C.


AVAESEN –>Sugimat apuesta por los “district heating” para los ayuntamientos de la Comunidad Valenciana

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