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Mechanical, Digital, and Smart Thermostats: Which Are Most Suitable for Your Home?

The purpose of thermostats is to monitor and maintain the desired temperature, thereby offering households greater savings and comfort compared to other types of heating regulation. However, to ensure that your investment in a thermostat delivers the desired benefits, you must choose correctly between the different types. Find out the difference between mechanical, digital, and smart thermostats and which solution will be best for you.

Mechanical Room Thermostats

Mechanical thermostats for boilers are the basic and most affordable type of thermostats. They are manually regulated by turning a dial or pressing buttons. The thermostat includes a temperature sensor that measures the room temperature and compares it with the desired temperature. The thermostat then switches the boiler on and off as needed.

The advantage of mechanical room thermostats is that they are the cheapest of all types of thermostats and do not require power – the temperature sensor operates on the physical principle of gas or liquid thermal expansion. The disadvantage is that you must adjust the temperature manually, which you can easily forget, leading to unnecessary overheating, for example, when you are at work or asleep.


Mechanical thermostats are suitable for undemanding users

Where Are Mechanical Thermostats Useful?

Mechanical room thermostats are usually sufficient for apartments and small family houses with a local heat source, where users do not require zonal regulation or the ability to program a heating schedule. Due to their low price and simple operation, they are popular among the older generation.

Digital Programmable Thermostats

Digital room thermostats are more accurate compared to mechanical ones and offer a range of functions that contribute to greater thermal comfort and significant savings. The basic function of these thermostats is time regulation. This means you can preset the desired temperatures for each time of day and each day of the week separately. If you choose thermostats with zonal regulation, you can control the temperature in each zone separately. The thermostat maintains these temperatures completely automatically, so you don't have to think about regulation at all. You can just as easily program special modes, such as a holiday mode.

Digital thermostats have a display where you can see all the important information and easily change the programmed settings or switch the thermostat to manual mode. You can measure the temperature using the sensor in the thermostat or an external sensor that you can place anywhere. The only minor disadvantage is that digital room thermostats require power, either via batteries (wireless thermostats) or from the mains (wired thermostats).

Who Are Digital Thermostats Suitable For?

Digital room thermostats are suitable for all households that want to save significantly on heating without losing thermal comfort. They are ideal for families with a regular routine.

Smart Thermostats

Intelligent thermostats are essentially digital thermostats that also feature a range of smart functions and Wi-Fi connectivity. The range of smart functions that contribute to savings varies by model, but generally, the most used are:

  • self-learning and predictive regulation based on historical data and weather forecasts,

  • geolocation function, where the thermostat uses GPS in your mobile to detect that you are approaching home and adjusts the temperature accordingly,

  • open window detection function, where the thermostat does not increase heating output during ventilation, etc.

Thanks to Wi-Fi connectivity, you can also monitor and control the temperature in your home anytime and from anywhere via mobile. Some models of smart thermostats can be controlled using voice assistants or integrated with a smart home system – in such cases, the Wi-Fi thermostat can collaborate with, for example, external blinds to optimize heating.

Using a central smart home system, you can set various scenarios, such as for your morning routine, which includes turning on the heating before waking up and turning it off after leaving for work, as well as opening and closing blinds, playing your favorite music, and securing the home after departure.

Who Are Smart Wi-Fi Thermostats Ideal For?

Smart thermostats offer the highest savings and comfort, making them suitable for demanding users and larger, modern properties with quality internet. They are especially appreciated by technologically advanced users with high demands for comfort and automation or owners of other smart technologies in the home that can complement each other.


With a Wi-Fi thermostat, you can control heating via mobile

Other Important Criteria for Choosing a Thermostat

The market offers a wide range of thermostats, and choosing the right type is just the beginning. You also need to ensure that the thermostat is compatible with your heat source and type of heating system; in the case of smart thermostats, compatibility with your smart home system is also important.

If you require zonal regulation, choose a thermostat with the appropriate number of zones. Also, focus on the temperature range, especially if you want to use the thermostat for cooling as well. Portable wireless thermostats offer greater user comfort but are more expensive. However, if you do not have wiring prepared for a wired thermostat, it would ultimately cost you more due to necessary construction work. Lastly, consider whether the control elements and design of the thermostat suit you. Among the leading thermostat manufacturers are Honeywell, Siemens, and Danfoss.

Ideally, seek advice from experts not only on selection but also on placement, installation, and setting of the thermostat. Only then can you be sure that your new thermostat will bring the expected savings and comfort. At BOLA, we are happy to provide expert advice.

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