Oil condensing boilers use the latest heating technology

Oil heating systems are still among the most widely used heating systems. No wonder, because the fuel is energy-rich and the system is considered safe. If homeowners decide to buy a Viessmann condensing boiler for oil, they are also making an active contribution to conserving resources and saving energy. Because with an unbeatably high efficiency, up to 98 percent of the heating oil used is converted into heat.

Viessmann oil condensing boilers also have the future already built in. Because ex works, they are prepared for a changeover from exclusively fossil oil to heating oil with a proportion of bio-oil and can thus also be operated with renewable energy sources. In this way, every operator of an oil heating system with an oil condensing boiler makes an active contribution to climate and environmental protection. Viessmann has the right oil condensing boiler for every heating requirement.

Combining the new oil condensing boiler with solar collectors

The free energy of the sun for heating support and domestic hot water is still too little used. Yet solar technology is more than mature and has become very cost-effective in recent years. In addition, the acquisition is supported by the state with high subsidies. Today, every new oil condensing boiler should also be combined with solar collectors to use free solar energy, especially since Viessmann oil condensing boilers are already designed to use solar energy.

When operating an oil condensing boiler in conjunction with Vitosol solar collectors for central heating backup, the requirements of the EEWärmeG and EWärmeG (Baden-Württemberg) are met. The building owner can apply for public subsidies for this investment. Current information on this can be found in our subsidy database. Further information on the subject of financial incentives and government subsidy programs can also be found in the section on subsidies for oil condensing technology.

Vitoset heating oil tanks for your new oil condensing heating system

The complete system of a condensing oil heating system also includes economical, space-saving and trouble-free heating oil storage. For new builds, extensions or renovations, a heating oil tank from the Vitoset range for your oil condensing boiler is a safe solution in any case - in detached houses or apartment buildings as well as for residential complexes or commercial buildings.

Operating the new condensing boiler for oil via the Internet using an app

With the free ViCare app, you can then conveniently control your new oil condensing boiler online via app - even from your vacation spot or workplace. All you need for this digital operating convenience is the Vitoconnect internet interface, which your heating engineer can set up on request during the new installation.

How the oil heating with condensing technology works

When fuel oil is burned, hot exhaust gases are produced in addition to heat. In older boilers, these gases are discharged through the chimney into the open air. This is necessary for two reasons. On the one hand, some components of the exhaust gases are very acidic and can damage the system itself as well as the exhaust pipes in the long term. On the other hand, the exhaust gases must not be allowed to condense, otherwise they would become too heavy and could no longer escape from the chimney. This design-related process means that the heat hidden in the exhaust gases remains unused.

Compared to older condensing boilers, Viessmann condensing boilers for oil make additional use of this latent "condensation heat". This is released when the exhaust gases cool down and the resulting hot water vapor condenses. In this way, up to 98 percent of the energy content in the heating oil is converted into heat. Detailed descriptions of this process can also be found in the section How oil condensing technology works.