Development and manufacture of wood, pellet and wood-chip heating systems, heat pumps and storage systems in Austria.
Windhager Zentralheizung GmbH (BHT Best Heating Technology)
Seekirchen am Wallersee · PinsdorfNew on Amplifa
About Windhager
Windhager is an Austrian heating manufacturer based in Seekirchen am Wallersee, founded in 1921 by Anton Windhager as a metalworking shop and today part of the BWT Group under the name BHT Best Heating Technology. The product portfolio includes pellet and log boilers, wood-chip heating systems with fuel gasification technology, gas condensing and oil heating systems, air/water heat pumps, solar collectors as well as buffer tanks and domestic hot water boilers. The wood and pellet heating systems are manufactured exclusively at the company's headquarters in Seekirchen am Wallersee; a plant in Pinsdorf with a logistics centre was approved for heat pump production in 2021. Boilers and storage tanks are predominantly made of steel and assembled. Sales are handled through the company's own branches in Germany, Switzerland and France as well as a Europe-wide partner network. In 2021, around 70 % of revenue came from exports.
- Site
- Seekirchen am Wallersee, Austria
- Processes
- Manufacture of pellet heating systems (pellet boilers), Manufacture of wood heating systems (log wood boilers), Manufacture of wood-chip heating systems (wood-chip boilers with fuel gasification technology), Manufacture of air/water heat pumps, Manufacture of gas condensing heating systems, Manufacture of oil heating systems, Manufacture of solar collectors, Manufacture of storage systems (buffer tanks and domestic hot water boilers)
- Materials
- Steel (boiler construction, historically enamelled), Steel
- Certificates
- ISO 9001, Climate Alliance company
- Founded
- 1921
- Employees
- ca. 400
- Industries
- Heating technology, Renewable energies (biomass, heat pumps), Solar technology
- 01
Design and development
- 02
Boiler and storage tank manufacture from steel
- 03
Assembly of heating systems
- 04
Logistics
- 05
Sales via own branches and partner network
Materials & Processes
Steel
Material used for boiler construction, storage tanks and historically enamelled stoves.
Locations
Seekirchen am Wallersee
ATHeadquarters and production of wood and pellet heating systems
- Materials
- Steel
Pinsdorf
ATHeat pump plant with logistics centre (approved 2021)
- Heat pump plant
- Logistics centre
Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of pellet heating systems (pellet boilers)Assembly | – | – | – | – | Steel |
| Manufacture of wood heating systems (log wood boilers)Assembly | – | – | – | – | Steel |
| Manufacture of wood-chip heating systems (wood-chip boilers with fuel gasification technology)Assembly | – | – | – | – | Steel |
| Manufacture of air/water heat pumpsAssembly | – | – | – | – | – |
| Manufacture of gas condensing heating systemsAssembly | – | – | – | – | Steel |
| Manufacture of oil heating systemsAssembly | – | – | – | – | Steel |
| Manufacture of solar collectorsAssembly | – | – | – | – | – |
| Manufacture of storage systems (buffer tanks and domestic hot water boilers)Assembly | – | – | – | – | Steel |
| Enamelling (historical, stoves)Surface treatment | – | – | – | – | Steel |
| Metalworking shop (historical, founding trade)Assembly | – | – | – | – | Steel |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Heat pump plant with logistics centre | Windhager | 1 | – | – | Pinsdorf |
Additional services
Reference customers
Quality
Windhager has been certified to ISO 9001 since 1994 and has been a certified Climate Alliance company since 2007.
| Evidence | Seekirchen am Wallersee |
|---|---|
| ISO 9001 | |
| Climate Alliance company |
History
- 1921
Founded by Anton Windhager in Seekirchen am Wallersee as a metalworking shop
- 1971
Authorised to bear the Austrian federal coat of arms as Anton Windhager OHG Stove Factory
- 1994
ISO-9001 certification
- 2004
Innovation Prize of the State of Salzburg for fully automatic pellet feeding
- 2007
Certified Climate Alliance company
- 2008
Acquisition by Invest AG and Manfred Mayrhuber; Blue Angel for pellet boilers in Germany
- 2013
Return to family ownership
- 2021
Decision to build a heat pump plant with logistics centre in Pinsdorf
- 2022
Record revenue of 160 Mio. €
- 2023
Short-time work for the majority of employees; pellet heating sales in Germany fell by ca. 40 %
- 2024
Insolvency proceedings; acquisition by BWT AG (Mondsee), continued as BHT Best Heating Technology