6 Expert Tips for Saving Electricity with Smart Heaters

With the arrival of the colder season, heating becomes a significant part of electricity consumption in our homes. However, in today’s world where electricity prices are constantly rising, more and more people are looking for ways to reduce heating costs without sacrificing comfort.

According to Olga Jagelavičienė, Brand Development Manager at ACC Distribution, modern smart heaters not only help maintain a comfortable temperature but also allow for intelligent energy consumption management.

Olga Jagelavičienė, Brand Development Manager at ACC Distribution

One of the most advanced technologies available on the market is the fourth-generation Mill WiFi heaters. These devices stand out not only for their elegant design but also for their smart features: self-learning, precise temperature control, power limiting, open-window detection, and remote control via a mobile app.

Considering the latest technologies, O. Jagelavičienė shares tips on how smart heaters can help reduce electricity costs:

1. Turn off or lower the temperature on your heater when you’re not at home
Many people leave heaters on all day, even when they’re at work, mainly to ensure that the house is warm when they return. In this case, empty rooms are being heated, which unnecessarily increases electricity consumption.
According to the expert, the “Mill” mobile app allows users to plan a heating schedule for the entire week: “You can set different temperatures for different times and rooms, so rooms are heated only when truly necessary. If you don’t want to adjust everything yourself, you can use the manufacturer’s pre-configured settings, which are tailored to the most common situations.”
Heaters with artificial intelligence functions “learn” how long it takes for a specific room to warm up and begin heating at the right time, so the desired temperature is reached precisely when you return.

2. Use nighttime for energy savings
At night, less heat is needed compared to the daytime, making it a great opportunity to reduce electricity consumption without discomfort. “Studies show that for quality sleep, a temperature between 14–18°C is sufficient,” says O. Jagelavičienė.
The latest “Mill” heaters come with an automatic sleep mode, which reduces the heat at night to a pre-set energy-saving level, while maintaining a stable 20-22°C temperature in the evening when family members are active. This is especially useful in children’s rooms, as the heater maintains comfort while they play or study, and then reduces the temperature at night without any extra intervention.
All settings are made through the mobile app, so you don’t have to worry about adjusting the thermostat every night, and electricity savings happen without you even noticing.

3. Avoid electricity consumption during peak hours
For those users who have chosen a variable electricity supply plan, the price of electricity can change not just by day but by hour. In the mornings and evenings, when most people prepare for work, cook, or return home, electricity demand rises, and with it, prices also jump. These peak periods are when heating is most expensive.
For example, before a price spike, you can slightly increase the room temperature so it stays warm. Then, when prices rise, you can temporarily turn off the heater or reduce its power—this way, the warmth in the room will last a while, and you won’t need to turn the heater back on at full capacity. This is a simple but effective way to reduce electricity consumption without sacrificing comfort.

4. Precise heat control with Mill’s PID Wattage Tech™ technology
Most traditional heaters operate on a simple principle—they turn on at full power when the temperature drops and turn off completely once the set level is reached. This “on-off” mode causes temperature fluctuations, discomfort, and unnecessary electricity waste.
According to O. Jagelavičienė, the fourth-generation “Mill” WiFi heaters stand out because they use the unique PID Wattage Tech™ technology, which maintains a constant temperature by adjusting power smoothly instead of in jumps.
“Instead of suddenly turning on at full power, the heater gradually adapts to the real room situation and only supplies as much heat as needed at that moment. This avoids energy waste and ensures maximum comfort,” explains the expert.
Moreover, the power-limiting function allows users to set the maximum possible heater power, which is especially useful for those who use solar panels or want to limit electricity consumption during peak times.

5. Opened the window? The heater will understand
Ventilation is an essential daily routine, but many people forget to turn off their heaters when opening windows. In such cases, regular heaters continue to work intensively, trying to compensate for the sudden drop in temperature, which results in unnecessary energy waste.
“Mill” GEN4 heaters feature an open-window detection function, which automatically responds to such changes. As soon as it detects a sudden temperature drop, the device temporarily turns off, realizing that heating is unnecessary at that moment.
“This is a small detail, but in daily life, it helps to reduce bills, especially during the cold season,” says O. Jagelavičienė. Once the window is closed and the temperature stabilizes, the heater automatically turns back on.

6. Compatibility with solar panels
The “Mill” GEN4 Wi-Fi heaters work perfectly with solar panels. “Using the app, you can set the heater’s power limit and precisely manage electricity consumption. This allows you to maximize the use of solar-generated energy and reduce costs,” points out the expert.
Moreover, this is a sustainable choice—using renewable energy reduces environmental impact and dependence on more expensive electricity from the grid. This system becomes especially relevant in the cold season when the need for heating is high, and costs can rise quickly.

Why choose a smart heater?
The new-generation “Mill” GEN4 heaters stand out not only for their smart features and 5-year warranty but also for their very low electricity consumption, even when running at full intensity. A study by the Norwegian University of Science and Technology found that the 600W “Mill” heater consumes just around 52 kWh per month during winter—one of the most efficient results in this category.
This ensures not only comfort but also real savings. With the “Mill” system, users can easily plan, monitor, and optimize their heating habits based on the time of day, electricity prices, or solar panel-generated energy.
“Smart heaters, like the “Mill” GEN4, are a smart choice for everyone who values comfort, innovation, and wants to reduce their expenses,” concludes O. Jagelavičienė.