⌂ » District heating

District heating

Reliable and efficient piping systems for district heating with focus on environment and economy. isoplus supplies complete pre-insulated piping systems for district heating and helps you choose the right solution for your project.

Effective and CO2-friendly

District heating is an efficient supply that can use practically all kinds of energy sources. Heat consumption is increasingly generated from renewable energy sources such as sun, wind, biomass, biogas and geothermal energy. Thanks to their unique structure, pre-insulated district heating pipes contribute to environmentally friendly use of energy sources while reducing the emission of CO2.

A low-energy pre-insulated pipe from isoplus is effectively insulated with polyurethane foam and protected by an impact and fracture resistant jacket pipe of PE-HD. This structure ensures high reliability and a constant low heat loss throughout the service life of the pipe system. Therefore, it is a CO2-friendly solution that secures low operating costs in the long run.


The right solution for your project

isoplus provides pre-insulated piping systems for many different district heating applications, such as heat transmission, distribution, solar heating and small community projects.

By choosing the correct pipe system, you ensure optimal energy-saving operation and security of supply to the consumers. The choice of pipe system will depend on a number of factors. Heat price, length of pipeline, heat density and capacity usually go hand in hand with dimension and the choice of pipe type.

isoplus’ range of products comprises all components required to provide complete pre-insulated pipe systems. A large central stock and a wide product range ensure that we can put together optimal and competitive solutions for small and large assignments.

We have many years’ experience with materials and components for district heating systems and can help you choose the perfect solution for your project.

Contact one of our experts for technical assistance and consultancy or read more about isoplus services.


Contact us

T  +45 6441 6109
E  iso@isoplus.dk

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Pipes and fittings for district heating solutions

Steel pipe

Pre-insulated steel pipe is a solid and efficient solution for district heating, cooling as well as industrial applications that require high temperature and pressure resistant pipes.


isoplus pre-insulated isopex pipes are perfectly suited for branch lines, secondary lines and small community projects with a continuous operating temperature of maximum 85°C.


isoalupex is a flexible pre-insulated piping system perfectly suited for branch lines in district heating piping systems.


isoplus’pre-insulated isoflex pipes is a bonded pipe system, perfectly suited for branch lines in district heating systems operating at high temperatures and pressures.


isowell is a flexible, longitudinally welded and spirally corrugated HYDRA® stainless steel pipe, particularly suited for secondary piping networks with high requirements to pressure and temperature.

Reinforced PEX

Reinforced PEX is a flexible pipe perfectly suited for secondary networks with high requirements to pressure and temperature. Kevlar reinforcement allows the pipes to be used at maximum operating pressures of up to 10 bar.

Joints and fittings

isoplus offers a complete range of joints, joint assemblies, fittings and other accessories, all tailored to the pipes and easy to install and maintain.

Case references

District heating under the inlet in Hadsund

Establishing a 300-meter district heating pipeline may not sound all that spectacular, but there was something special about this project, when the southern part of Hadsund was connected to the northern city's district heating. The pipe had to be laid 1 meter below...

Trenchless technology to large project in Horsens

When 200 km of pipes and 180 km of service connections is to be buried, it is impossible to avoid inconveniences for the citizens. Many roads need to be dug up, which can cause traffic issues, broken roads, and frustrated citizens. In order to protect the surrounding...

Innovative project with new energy station in Tårnby

Tårnby Public Utility paves the way with a new visionary project in which an energy station will become the new gathering point for the area's district heating and cooling. Here the two systems will utilize the energy from the waste water. The plant will be the first...

Five oil villages’ path to sustainable solutions

Lolland Municipality takes the lead in the fight against climate change, as a new district heating project has begun on West Lolland. The municipal’s ambitious climate plan is based on the current energy policy, which includes phasing out oil-fired boilers by 2030 and...

Optimal supply for visionary urban development

In the South Harbour district in Aarhus, the second largest city in Denmark, a new heating transmission line from the Aarhus Heat Plant to Sydhavnsgade is intended to support a major urban development and ensure security of supply to the city. The neighbourhood of the...

Pioneering renewables project in Stirling

Stirling Council's district heating project will be the first in the UK to use a mix of pioneering renewable technologies to turn waste water into energy. A Combined Heat and Power (CHP) unit will supply the network with heating using a heat pump system to deliver...

Greenwich Millennium Village – Sustainable community

Greenwich Millennium Village (GMV) in south-east London is a flagship housing project built on an urban village model to set the standard for 21st century living and to serve as a model for the creation of new communities in England. The initiative aims to create a...

Sheridan College – Optimizing energy consumption

Sheridan College set goals to reduce its energy consumption by 65% and CO2 emission by 45% by 2030. With four separate campuses enrolling 40,000 students, the college focused on reducing the consumption of the two largest campuses. To achieve the project's goals new...

University of Rochester – From steam to hot water

The University of Rochester is one of the country's top-tier research universities. The campuses are home to 200 academic majors, more than 2,000 faculty and instructional staff, and some 10,000 students which yields high requirements for the capacity and safety of...

A sustainable village becomes a reality

In Føns on West Funen, Denmark a vision about sustainable village became a reality. In October 2015, a brand-new wood chip-fueled heating plant was established, which now provides heating for 43 local households. isoplus has supplied the pipes and made the detailed...

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