The thermostat plays a very important role in the heating system. It helps control and regulate the temperature in such a way as to ensure optimal thermal comfort in the selected room. The most well-known example of a thermostat is the thermostatic head, placed directly next to the radiator. What is a bimetallic thermostat, how does it work, what are its advantages?

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How does a bimetallic thermostat work?
The principle of operation of a bimetallic thermostat uses the properties of thermal expansion of materials. Inside the thermostat, two metal plates are mounted, and each of them has different thermal expansion parameters. These strips are connected to each other, most often bonded or welded. The mechanism of operation is that under the influence of temperature, one metal begins to deform, bending the strip of the other metal connected to it.
The plate of metal that begins to expand faster under the influence of temperature bends towards the second metal used. This mechanism is most often used to control the opening or closing of an electrical circuit.
The principle of operation based on the mechanical properties of metals means that devices operating on the basis of a bimetallic thermostat are characterized by high measurement precision, and the temperature control range can be really wide. This feature makes this thermostat model work great in those devices and systems in which it is necessary to quickly adapt the operation to changing thermal parameters.
The thermostat is additionally equipped with a special fuse. This is a so-called thermal fuse, which is responsible for disconnecting the circuit in the event of excessive temperature increase.
Advantages and applications of a bimetallic thermostat
The solution, which is a bimetallic thermostat , is commonly used in many electrical devices that are used in homes on a daily basis. Examples include ovens, irons, radiators, heaters or refrigerators. They are also perfect for fire protection systems, where they help protect selected electrical components from overheating. In addition to heating systems, bimetallic thermostats are also used in cooling systems.
The most frequently mentioned advantages include a simple construction and operating principle. Thanks to this, they are elements that operate in all conditions. Power failure is no problem, and the bimetallic thermostat is characterized by high reliability. This is a great advantage compared to models that are powered by electricity. Additionally, they can operate without failures for a long time. They also do not require special maintenance. When analyzing the advantages in the context of construction, it is worth noting that all components are permanently connected to each other, so the risk of damage is negligible, and the thermostat is characterized by a long service life.
Specialists also reach for bimetallic thermostats because they are universal solutions. They can be successfully used in heaters, furnaces, air conditioners, and refrigerators. The negligible failure rate makes it perfect for both home conditions, where the loads are small, and industrial conditions, where a potential failure could lead to serious consequences and faults.
The bimetallic thermostat is easy to install, and its configuration and operation are also simple, and they also ensure maximum safety in all conditions.
Bimetallic thermostats at the Onninen wholesaler
The very idea of using bimetallic thermostats to regulate temperature has been used for a long time, while the development of technology and increasing knowledge allow for the constant improvement of the method. Thanks to this, modern solutions are even more effective and effectively prevent overheating of any equipment or system.
Onninen's offer includes modern solutions, such as the KAN-therm bimetallic room thermostat 230V/24V , prepared by SYSTEM Kan-Therm. A solution dedicated to two-wire installations. The bimetal in this variant is normally closed inside an aesthetically pleasing box. The housing is tight, durable, so you don't have to worry about damaging it. On its outer part there is a knob, thanks to which you can easily and conveniently set the optimal temperature. The range covers from 5 to 30 degrees Celsius. The entire device is characterized by small dimensions, so the sensor does not negatively affect the aesthetics of the interior. The thermal switch has all the necessary approvals and certificates.