On a chilly weekday morning, many people follow the same routine: coffee in hand, a quick glance at the thermostat, and a small adjustment to make the room more comfortable. For years, the number 19 °C has been treated as the “correct” indoor temperature across much of Europe. It appeared in government advice, energy campaigns, and even family habits passed down through generations.
But today, that long-standing rule is slowly fading. More households are discovering that slightly warmer settings can improve comfort without dramatically increasing energy use.
Across Europe, small thermostat adjustments are revealing a larger shift in how people think about heating, comfort, and energy efficiency.
Experts Update Heating Guidance — Households — New Comfort and Efficiency Standard
Why the Traditional 19 °C Rule Is Changing
For decades, 19 °C was promoted as the responsible choice for saving energy. The logic made sense at the time: many homes had poor insulation, heating systems were less efficient, and people spent fewer hours indoors.
However, modern lifestyles have changed significantly.
Today many people:
Work from home for long hours
Spend more time indoors with family
Use living rooms as offices, classrooms, and leisure spaces
In these situations, 19 °C can feel too cold, especially when people are sitting still for long periods.
Recent energy surveys also reveal a surprising pattern: some households reported keeping their thermostat at 19 °C, yet their actual daily average was closer to 20–21 °C, particularly during the evening.
This doesn’t necessarily mean people were ignoring energy advice—it simply reflects real daily life.
Experts Point to a New Comfort Range
Energy specialists and building scientists increasingly recommend a temperature range instead of a single fixed number.
For most households, the practical balance is:
20–21 °C in living areas during the day
17–18 °C in bedrooms or overnight
Lower temperatures when no one is home
This approach supports both comfort and efficiency. Instead of focusing on strict limits, experts now emphasize smart heating habits, including timing, zoning, and gradual adjustments.
How Small Temperature Changes Affect Energy Use
One key fact remains important: every additional degree increases heating consumption.
Energy specialists estimate that each extra degree above your normal comfort level may increase heating use by about 7 % over time.
That means sudden jumps—such as turning the thermostat up to 23 °C or 24 °C after arriving home—often lead to higher bills.
A better strategy is to make small adjustments gradually.
A common recommendation is:
Start with 20 °C as your base temperature.
Try it for several days.
If it still feels cool, increase by 0.5 °C at a time.
This allows both your body and your home to adapt naturally.
Simple Ways to Stay Comfortable Without Wasting Energy
Heating efficiently isn’t just about numbers on a thermostat. It also depends on how a home is used.
Experts often recommend these practical steps:
Heat the rooms you actually use
Focus on living areas rather than unused guest rooms.
Lower bedroom temperatures
Sleeping at 17–18 °C can improve sleep quality while reducing energy use.
Use programmable heating schedules
Let temperatures drop slightly when you’re away rather than turning heating fully off.
Wear seasonal clothing indoors
Light layers, wool socks, and blankets can increase comfort without raising the thermostat.
Stop heat loss first
Seal window drafts and check door insulation before increasing temperatures.
Small improvements like these often make a 20–21 °C home feel significantly warmer.
A New Way of Thinking About Heating
Beyond energy savings, this shift reflects a broader change in how people interact with their homes.
Heating is no longer just a background setting—it’s becoming a personal comfort choice. People compare temperatures with friends, monitor energy apps, and adjust rooms depending on how they are used.
Some households even discover that different family members prefer slightly different temperatures.
Instead of a strict universal rule, modern heating advice encourages flexibility: finding a comfortable range that works for your home and lifestyle.
Key Takeaways
| Key Idea | Explanation | Why It Matters |
|---|---|---|
| Comfort range replaces fixed rule | Aim for 20–21 °C in living spaces | Better comfort without large energy increases |
| Gradual adjustments work best | Change thermostat by 0.5–1 °C at a time | Helps avoid sudden bill increases |
| Heat where life happens | Focus heating on occupied rooms | Improves efficiency and comfort |
Frequently Asked Questions (FAQs)
What temperature do experts recommend instead of 19 °C?
Many energy specialists now suggest 20–21 °C for living areas when people are active at home, while 17–18 °C is recommended for bedrooms or nighttime.
Is 19 °C too cold for most homes?
Not necessarily. Some households remain comfortable at 19 °C, especially with good insulation and warm clothing. However, people who sit for long periods—such as remote workers—often prefer slightly warmer temperatures.
Will increasing my thermostat by 1 °C significantly raise my bill?
Energy consumption may rise by about 7 % for each additional degree, especially if the higher temperature is maintained throughout the winter.
Should heating stay on all day at a low level?
In well-insulated homes, maintaining a stable temperature with small programmed adjustments is usually more efficient than completely switching heating off and reheating the home repeatedly.
How can I feel warmer without raising the thermostat above 21 °C?
Try wearing layered clothing, using blankets or throws, sealing window drafts, closing doors between rooms, and ensuring radiators are properly maintained. These simple changes can make indoor temperatures feel noticeably warmer.