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Kombikessel.

Combi

(13 products)

Combination boilers – an efficient heating and hot water solution for your home

Combination boilers integrate heating and hot water production into a single compact system, making them a practical choice for many residential and commercial properties. They offer the ability to generate space heating and domestic hot water on demand, without the need for separate appliances. In modern homes, a well-chosen combination boiler provides comfort, saves space, and a streamlined, easy-to-maintain system.

When selecting a combination boiler, technical specifications, energy efficiency, connection types, and compatibility with existing heating systems play a major role. An overview of operating principles, types, advantages and disadvantages, as well as recommendations for installation and maintenance, helps in making the right decision and reducing operating costs in the long term.

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How a combination boiler works

A combination boiler combines the production of heat for radiators or underfloor heating with hot water preparation for household purposes. In contrast to systems with a separate hot water storage tank, the water in many combination boilers is heated as needed, which reduces or completely eliminates the need to store hot water. Thermostats and controls intelligently control the temperature so that energy is only supplied when needed.

The central unit contains burners, heat exchangers and control technology. Modern condensing boilers use exhaust heat to generate additional yield, while older models without condensing technology are less efficient. The exact mode of operation can vary depending on the fuel (gas, oil, solid) and type, but the basic principle remains the combination of heating and hot water functions in one device.

Types of combi boilers

Combi boilers are available in different versions: gas-powered combi boilers, oil-powered models, multifuel variants and modern electrified ones systems. Gas combination boilers are common in many regions because they are compact and efficient. Oil heaters are still an option in areas without a gas connection. Newer hybrid solutions combine fossil fuels with renewable sources or support solar systems.
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