Floor-standing oil condensing boiler
Weishaupt Thermo Condens WTC-OB

Economical, reliable and powerful

The floor-standing Weishaupt Thermo Condens oil condensing boiler, WTC-OB, combines oil condensing technology with convenience and high capacity. The innovative sensor technology contributes significantly to operational reliability.


  • Ratings variations: The WTC-OB is available in ratings ranging between 20 and 35 kW. Depending on the boiler variation used, the two stage blue flame burner can differentiate its rating by up to 13 kW.
  • Fuel control: Thanks to the integral consumption control, the economical use of fuel oil can be checked at any time via the controller display.
  • Noise emissions: An integrated combination of sound attenuators for flue gas and air intake significantly reduces operating noise levels.
  • Controlled operation: The modular control system WCM provides a number of connection and application options to control the heating system.
  • Power Saver: The WTC-OB uses just 4 W in Standby mode and can significantly reduce electrical consumption by using an energy saving pump.
  • Reliable heat transfer: The heat exchanger of the WTC-OB, made of aluminium / silicon has proven to be an excellent heat conductor.
  • Fuel: The WTC-OB is suitable for fuel oil EL (with optional neutralisation system) and low sulphur fuel oil EL DIN 51603-1, as well as fuel oil EL with up to 10 % Bio component additives to DIN 51603-6, fuel oil EL A Bio 5 and 10.


For further information please contact your nearest Weishaupt heating specialist.

Weishaupt. C’est la fiabilité avant tout.