Around 6 million oil heating systems reliably provide German households with a comfortable standard of living. Advanced oil heating systems are economical, efficient, and environmentally responsible. Thanks to resource-saving innovations, these systems are now state of the art.
The core of any oil heating system is the boiler. The core of any oil heating system is the boiler. Older oil boilers no longer correspond to the latest engineering standards. That means that valuable energy is being wasted. A new, advanced oil boiler can help you tremendously increase the efficiency of your heating system, improve convenience through the control systems and lower your heating costs.
The amount of heat energy used for energy recovery can be seen in the flue gas temperatures, for one thing: whilst older, low temperature appliances produce flue gases at about 140-200 °C, condensing boilers emit gas that is only around 50 °C. Here we'll show you what this means for the modernisation of older systems.
The heat recovery feature in condensing boilers results in much better energy efficiency with condensing appliances compared to conventional boilers. In such systems, the heat escapes unused up the chimney. The conversion from a conventional boiler to heating using innovative condensing technology is an investment that will pay dividends over the long term.
Solar thermal systems give you support from the sun for your DHW heating or can also assist as central heating backup. In addition to an oil heating system, you will need a solar thermal system. This consists of rooftop solar collectors and a cylinder.
But what about when the sun isn't shining? In that case, your oil heating system automatically makes up the difference. A solar thermal system can provide up to 60 % of the energy for DHW heating and up to 20 % of the energy for your heating needs – at almost no cost and with an absolutely clear environmental conscience. The sun isn't the only one smiling about it.
If you already have an oil heating system, then the most cost effective option is to simply replace the boiler. Ideally with condensing technology. The KfW is promoting conversion to advanced oil condensing boilers with subsidies of 10 % – up to €5000 – of the eligible costs. Switching from oil to gas means having the oil tank professionally removed, and if your home is not connected to the gas mains, this incurs additional costs as well. These factors can quickly cancel out the potential savings on fuel.
If you are planning a new build and are considering an oil heating system, be sure to keep the oil tank in mind. If you don't have enough space above ground for the tank, an underground tank is a good solution. However, underground tanks are more expensive to purchase and require a permit.
In order for the installation of your new heating system to be eligible for a subsidy from the KfW [Germany], you must apply prior to starting the modernisation work. Then you can look forward to a subsidy of 10 %, up to a maximum of €5000. Costs that can be subsidised include the disposal of the old system, chimney modernisation and the replacement of radiators. When modernising chimneys, remember that the temperatures of the flue gas is lower when using an advanced condensing boiler than with older appliances. This may lead to condensation in the chimney or flue and cause damage. You can prevent this by installing a plastic or stainless steel pipe in the chimney. Replacing a heating system is the ideal opportunity to check your DHW cylinder. The water hardness, age and usage may make a replacement for hygienic purposes advisable.
Together with an expert, you can quickly identify the heating system best suited to your needs. Get some good advice without any obligation.