ab 1900 |
Bau von Dampflokomotiven im Werk Maribor ( ehem. Marburg ), Slovenien |
1957 |
WVT founded in Cologne as family-run enterprise by Karl-Wilhelm Prochnow |
1960 bis 1972 |
Development and patenting of flue gas dust collectors and hot gas blowers |
1974 |
To expand manufacturing capacities, production and administration move to the favourably-situated town of Untereschbach directly on the autobahn BAB 4 |
1979 |
Own biomass furnace system patented under the registered trademark: "Bioflamm®" |
1982 bis 1985 |
Development of a distribution network with partners in Germany, Austria, Switzerland, Italy, the Netherlands, England and the USA |
1983 |
Delivery of two boiler plants to Haiti for recovery of oils from roots |
1984 |
TÜV report on quick controllability pursuant to DIN 4751 |
1988 |
Licensing of the company Siegel LTDA, Agrolandia, for production and sale of Bioflamm® furnaces in Brazil |
1989 |
Extension of capacities by building a new production hall and extension of the administrative building at Untereschbach |
1990 |
Delivery of the first Bioflamm® furnaces in combination with steam boilers to the companies Schütte-Lanz GmbH and Allgäu Pharma GmbH |
1992 |
The first plant for thermal oil heating in combination with a Bioflamm® furnace is constructed at a German door manufacturing plant |
1992 |
Further development of the forehearth system for the compact series (integral furnace) |
1992 |
Use of the first PLC in a Bioflamm® furnace |
1993 |
Acquisition of the manufacturing plant in Maribor (Slovenia) and monitoring of quality by TÜV Bavaria |
1993 bis 1996 |
WVT acquires a name for itself as municipal and commercial energy supplier by delivering numerous plants for local and district heating. (The first public wood heating plants in North Rhine-Westphalia, Schleswig Holstein, Rhineland Palatinate, Hesse and Mecklenburg-Vorpommern come from us.) |
1994 |
Delivery of a furnace for rape groats for the research project "decentralised energy generation from rape" with the support of the Ministry for Economics of the state of North Rhine-Westphalia |
1997 |
Delivery of the first wood pellet boiler to Sweden |
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Delivery of the biggest single plant so far (6 MW) to a wood processing plant in Italy for use of chipboard residues |
1998 |
Participation in the research project: "Development of cogeneration of heat and power on the basis of a Stirling engine in conjunction with high temperature ceramics" with the support of the EU |
2000 |
Business interests of K. W. Prochnow handed over to the Biedenkopf family for age-related reasons |
2001 |
Advancement award from the state of North Rhine-Westphalia for the wood heating plant in Lieberhausen |
2003 |
Delivery of a furnace for a pilot project for use of horse litter at the Olympia-Reitanlagen GmbH in Munich. |
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The first welding robot starts work |
2004 |
Opening of a sales office in France |
2004 |
Delivery of a furnace for the research project "FLOX Burner" at the Institute for Process Engineering and Steam Boilers at the University of Stuttgart |
2005 |
The two boiler plants in St. Marie aux Mines win an award as technologically most innovative plant in Alsace |
2005 |
The founder of the company Karl-Wilhelm Prochnow passes away on 26 December |
2005 bis 2007 |
Numerous Bioflamm® furnaces for heating of grain driers delivered to Bavaria, Austria and Hungary. WVT celebrates its 50th anniversary. |
2006 |
Delivery of a 3 MW furnace to heat a thermal oil heater in a saw works and chipboard plant in Siberia |
2007 |
Lieferung der zehnten Biomasse-Kesselanlage für den Wärmecontractor EDG in Rheinland -Pfalz |
2008 |
Einführung des Visualisierungs- und Pufferspeichermanagementsystems „Easy-Graph“ |
2010 |
Entwicklung einer neuen Kesselbaureihe TRF / SRF mit Dreizug Flammrohr- Rauchrohrkessel |
2013 |
Lieferung von Feuerungs- und Regeltechnik für pelletgefeuertes Dampferzeugersystem „Susteamer“ |