Wall hanging oil fired condensing boiler
Weishaupt Thermo Condens WTC-OW

Efficient, quiet and compact boiler

Reliable, efficient, economical: The Weishaupt oil fired condensing boiler, WTC-OW, sets a new bench mark. The modulating premix oil burner doses oil consumption to match the current heat demand and operates almost silently.


  • Best energy efficiency: Modulating operation and an efficiency of 104.7% nett (98.8% gross) save fuel.
  • Economical and quiet: The innovative premix oil burner ensures quiet operation and low emissions.
  • Reliable heat transfer: The aluminium and silicon heat exchanger has proven itself as an excellent heat conductor.
  • Simple operation: The WTC-OW can be easily controlled using a remote control unit.
  • Economical through and through: The energy saving pump fitted as standard reduces electrical consumption.
  • Requires little space: The WTC-OW can be wall mounted or combined as a compact unit with the corresponding hot water tank.
  • Fuel: The WTC-OW is designed for use with low sulphur fuel oil EL (DIN 51603-1).


For further information please contact your nearest Weishaupt heating specialist.

Weishaupt. C’est la fiabilité avant tout.