Hybrid heating has become increasingly popular, especially due to its climate-friendliness, cost-effectiveness, and energy efficiency. A hybrid system combines two or more heat sources, with the goal of taking advantage of the best properties of each heat source. One of the most popular combinations is biofuel, such as wood, pellets, or wood chips, combined with, for example, an air source heat pump, which maximizes heat output during cold winter months.
A hybrid heating system pays for itself quickly thanks to its efficiency. It is simple and safe to use. Read more about which biofuels are most commonly used in hybrid heating systems.
What is a hybrid heating system?
In a hybrid heating system, several different heat sources are used simultaneously or alternately. The goal is to improve the heating's energy efficiency, reduce emissions, and provide cost savings. Combination boilers, which use biofuel and other heat sources, offer flexible solutions for both households and larger properties.
Biofuels are environmentally friendly alternatives to fossil fuels. When biofuel is combined with another form of energy, its benefits can be utilized as a complementary or primary heat source during different seasons.
Biofuel and other heat sources in a hybrid system
In combination boilers, biofuel can be used as the main energy source, but it is often used as support, for example during the winter months when the need for heating is at its greatest. Pellets, wood chips, and solar collectors are the most popular choices for a hybrid system.
Pellet and wood chip heating in hybrid systems
Pellet and wood chip heating are two common forms of biofuel used in hybrid heating systems. Although both are efficient and environmentally friendly alternatives, their properties differ.
Small and efficient pellets have a very high calorific value
Pellets are compressed and dried wood material that burns cleanly and efficiently. Pellets have a very high calorific value and are easily accessible. Pellet boilers are usually highly automated, which makes pellet heating simple and convenient to use. When the boiler temperature drops, the boiler automatically handles the feeding of pellets to the burner, at which point the burner ignites and the property's temperature rises to the defined level.
Pellets are an affordable and environmentally friendly option. They are produced by compressing dried wood shavings and sawdust into dense rods. As a heating system, a pellet boiler is easy to maintain, as basic maintenance tasks should be performed every couple of months.
Wood chips are also suitable for heating large properties
Wood chip heating, in turn, uses wood chips, which are more natural and less processed than pellets. The moisture content of wood chips can vary, however, which can affect their combustion efficiency. The advantage of wood chip boilers is that they can use cheaper and local fuels, such as chips from forestry.
Wood chip heating containers/centers do, however, require space, so the use of wood chips for heating is more popular in rural areas and in larger properties where storage and handling of wood chips is easier than in urban areas. With a wood chip heating system, you can save significant costs compared to, for example, electric heating.
Solar collectors utilize solar energy, especially during the summer
Solar energy integration in hybrid heating systems is particularly popular among summer cottage owners. Solar collectors produce thermal energy to support the heating system, especially during the summer months when solar radiation is sufficient. Then, solar energy can be utilized especially for domestic hot water needs, but also for heating. During darker seasons, the hybrid system uses the main heat source.
The importance of automation and control
The efficiency of a hybrid heating system relies largely on the system's automation and intelligent control. In modern systems, the control system always chooses the most economical and efficient heat source based on the prevailing conditions. This ensures that, for example, solar energy is utilized first on sunny days, while a traditional heat source acts as the main heat source during the coldest days.
Automatic switching of heat sources also allows the system to always operate optimally, which saves heating costs. Furthermore, modern hybrid systems can be connected to remote monitoring, making it possible to track and control the heating system remotely using, for example, a mobile application.
Kardonar Bioenergy Solutions – professional help with choosing a hybrid system
Hybrid heating systems, which use biofuel in combination with other energy sources, offer an energy-efficient and environmentally friendly alternative to traditional heating methods. Combination boilers can optimally utilize several different energy sources, resulting in significant cost savings and reduced emissions.
Hybrid heating is an excellent solution for those who want to combine renewable energy with cost-effectiveness and comfort – and at the same time reduce environmental impact. The experts at Kardonar Bioenergy Solutions are happy to help with any questions related to hybrid heating systems.