District Heating Technology

What District Heating Technology does

FW-FERNWÄRME-TECHNIK GmbH (District Heating Technology) is a privately held German industrial manufacturer founded in 1980 and headquartered in Celle, Germany, specializing in steel-cased pipe-in-pipe (Stahlmantelrohr) systems. The company designs, engineers, and prefabricates double and triple-wall pipe systems operated with vacuum in the annular space, enabling transport of media across an unusually wide temperature range from -196°C (liquid nitrogen testing) to +400°C. Its core product portfolio comprises FW-STAHLMANTELROHR for district heating, FW-SICHERHEITSROHR for environmentally hazardous media, FW-KAMMER-PIPE for LNG and high-safety applications, FW-LNG-Pipe for cryogenic transport, FW-Bauteile prefabricated components (elbows, fix points, compensators, wall ducts, T-pieces, bearings), and FW-Qualität quality assurance services including 100% radiographic weld testing and Pipe Book documentation. Standard pipe lengths of 12 or 16 meters are factory-prefabricated to specification, including integrated fittings, which compresses on-site installation time for long-lived underground and above-ground pipeline systems.

The business model is project-based and engineering-driven: customers (typically municipal and private district heating utilities, plus industrial energy and LNG operators) submit specifications via an online request form, and the company issues custom quotations for each installation. Production is supported by a dense set of regulatory certifications (CSTB Avis Technique for France, PED 2014/68/EU with AD2000 and EN13480 Module H/A2 for Europe, HP 0 and HP 100 R and DIW EN ISO 3834-2 in Germany, plus Fachbetrieb status under the German Water Resources Act) that gate access to municipal and hazardous-media tenders. The company sells through its Celle headquarters combined with a regional agent and channel partner network covering more than 25 countries across Europe, Africa, and the Middle East, with worldwide availability for oilways and LNG pipes. There is no public revenue, funding, or M&A disclosure; the company is led by Managing Directors Andreas Fahl (Management) and Stefan Pape (Technology).

Name

District Heating Technology

Legal name

FW-FERNWÄRME-TECHNIK GmbH

Website

https://fw-gmbh.de

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

51–100 employees

Short description

FW-FERNWÄRME-TECHNIK GmbH is a German manufacturer of vacuum-insulated steel-cased pipe-in-pipe systems for district heating, hazardous media, and LNG transport, serving utilities and industrial customers across Europe, Africa, and the Middle East via direct sales and regional agents.

Ownership category

akta.pro rank

Product category

District Heating Pipes

NAICS

Fabricated Pipe and Pipe Fitting Manufacturing (332996)

SIC

Steel Pipe & Tubes (3317), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Pipe & Tube Manufacturing (Seamless & Welded OCTG/Line Pipe/Structural Tube) (IMAKABAI)

akta.pro secondary industry

Mechanical Piping & Pipefitting (Process/Utility Piping, Supports, Valves) (EUAEAFAD)

Keywords

• District heating pipes
• Steel jacketed piping
• Pipe-in-pipe systems
• LNG cryogenic piping
• Safety pipe systems

Headquarters

HQ city

Celle

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Pipe System Sales: Custom-manufactured steel cased pipe-in-pipe systems sold on a project basis. Systems are engineered to specification (temperature, pressure, media type) and include prefabricated components. Revenue derived from manufacturing and supplying complete pipe systems for district heating, industrial, and LNG applications.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels3 records

Core offering

FW-FERNWÄRME-TECHNIK GmbH manufactures custom-engineered steel-cased pipe-in-pipe systems (Stahlmantelrohr) for district heating networks, safety piping for transport of environmentally hazardous liquids, and cryogenic piping for LNG applications. The systems use vacuum insulation in the annular space to reduce thermal losses by up to 50% and enable permanent leak monitoring, with prefabricated components supplied in 12–16 m units for rapid on-site assembly across an operating range of -196°C to +400°C.

Product overview

FW-FERNWÄRME-TECHNIK GmbH manufactures a comprehensive portfolio of steel-cased pipe-in-pipe systems for district heating and hazardous media transport. The core product line consists of FW-STAHLMANTELROHR (standard steel-cased pipe-in-pipe for district heating), FW-SICHERHEITSROHR (safety piping for environmentally hazardous media), FW-KAMMER-PIPE (triple-pipe system for LNG and extreme temperature applications), and FW-LNG-Pipe (specialized cryogenic piping). These systems are complemented by FW-Bauteile (prefabricated components including bearings, fix points, compensators, and T-pieces) and FW-Qualität (quality assurance services with 100% weld testing and documentation). The products share a common design philosophy of vacuum-operated annular spaces for thermal insulation and leak monitoring, with modular components that integrate across the product line.

Differentiator

Problem solved

Functional benefit

Products and services

• FW-STAHLMANTELROHR (Steel-Cased Pipe-in-Pipe)

Quantifiable outcome

• Thermal losses reduced by up to 50% through vacuum insulation in the ring space
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eight partnerships are on record, tiered regional.

• Oy Konwell AbregionalChannel Partner/ Reseller/ DistributorRegional sales representative for Finland and Sweden. Contact: Tom J. Heinänen, Pia Heinänen, Kai Heinänen, Ruosilantie 10, 00390 Helsinki, Finland. Phone extensions for all three contacts provided.
• Axiom TubesregionalChannel Partner/ Reseller/ DistributorRegional sales representative for France. Contact: Alexandre Heidmann, 1 rue Thomas Edison, 67450 Mundolsheim, France. Phone: +33 388 966 024.
• Th. J. van den Anker BVregionalChannel Partner/ Reseller/ DistributorRegional sales representative for Netherlands and Belgium. Contact: Simon van Brakel, Siemon van Brakel, Haaswijkweg West 66, NL-3319 GD Dordrecht.
• KELVIN Sp. z o. o.regionalChannel Partner/ Reseller/ DistributorRegional sales representative for Poland and Ukraine. Contact: Jaroslaw Stopka, Marta Marat-Wojciechowska, ul. Sobieskiego 413, 43-300 BIELSKO-BIAŁA, Poland.
• FERNWÄRMETECHNIK GADOLAregionalChannel Partner/ Reseller/ DistributorRegional sales representative for Switzerland and Italy. Contact: Vittorio Gadola, Cunclisstrasse 22, CH-7023 Haldenstein.
• SYSTHERM s.r.o.regionalChannel Partner/ Reseller/ DistributorRegional sales representative for Czech Republic. Contact: Tomáš Slavík, K Papírně 26, 312 00 Plzeň, Czech Republic.
• DiH inz-trgregionalChannel Partner/ Reseller/ DistributorRegional sales representative for Croatia, Serbia, Slovenia, Bosnia and Herzegovina, Macedonia, Montenegro, Kosovo. Contact: Mato Đurković, J. Blažekovića 16, 32276 Babina Greda, Croatia.
• ELENI consultingregionalChannel Partner/ Reseller/ DistributorRegional sales representative for Africa and Middle East. Contact: Dipl.-Ing. Mohamed EL AOUD, Complexe Zitouna, Avenue Independence N. 43, Denden, Tunis.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Perma-Pipe International Holdings: US-listed manufacturer of pipe-in-pipe and containment systems for district heating, oil & gas, and hazardous media. Closely comparable to FW because it also serves district heating and hazardous-fluid pipeline applications with double-contained piping.
• Logstor: Denmark-based global leader in pre-insulated pipe systems for district heating and cooling. Directly comparable to FW because both supply factory-fabricated, insulated steel piping systems to municipal district-heating utilities across Europe.
• Thermaflex: Netherlands-based manufacturer of flexible pre-insulated pipe systems for district heating and cooling. Comparable to FW as a specialty pipe-system manufacturer serving European district-heating utility customers with project-engineered solutions.
• Brugg Pipes (BRUGG Group): Swiss manufacturer of pre-insulated and safety pipe systems for district heating, gas, and industrial applications. Comparable to FW in flexible piping systems for district heating networks and gas/hazardous-media safety piping.
• Isoplus: Austrian/German manufacturer of pre-insulated pipe systems for district heating and cooling networks. Closely comparable to FW's FW-STAHLMANTELROHR product in target market, customer base, and project-based delivery model.

Broad incumbents

• GF Piping Systems (Georg Fischer): Swiss-listed industrial piping systems provider serving water, chemical, and HVAC applications globally. Compares to FW as a broader piping incumbent with overlapping industrial and HVAC/building-services customers but a much wider product range.
• Aquatherm: German-headquartered manufacturer of polypropylene pipe systems for heating, cooling, and industrial applications. Comparable to FW in serving heating-system projects in Europe but competes in plastic rather than steel jacketed systems.
• Rehau: Global polymer-based building solutions group with a significant district-heating pipe business. Overlaps with FW in district-heating pipe systems but competes with a different material (polymer vs. steel) and a much broader product portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about District Heating Technology