You may know this. It's too warm in the living room, it's cold in the bedroom, and on the last heating bill the question arises again as to why comfort has become so expensive. That's exactly whereadjusting the heatingstarts in practice, not with complicated technical terms, but with a few clean decisions on the system.
In Switzerland, this is particularly relevant becausearound 50% of the total energy for heatingare consumed andeach additional degree Celsius of room temperature increases energy costs by around 6%. increased. This magnitude makes it clear why small corrections often have more effect than blindly turning up the thermostat, especially in houses with uneven heat distribution. If you read the system correctly, you will not only save energy, but also get rooms that feel reliable instead of constantly fluctuating.Mehr zur praktischen Ausgangslage im Schweizer Kontextand a useful moving reference for households who want to furnish their new apartment cleanly straight away, you will findhier.
Introduction and use of optimized heating settings
A typical winter case looks like this. A couple sits at the dining table, the corner next to the sofa remains cool, the radiator under the window is audibly running, and yet the room never feels completely even. This is exactly when it becomes clear whether a heating system is set correctly or is just running somehow.Adjusting the heatingIn practice, it means bringing comfort, consumption and system behavior together instead of just turning a control.
Especially in Switzerland, it is noticeable how different the same settings can have an effect. An older house with radiators reacts differently than a well-insulated new building, a heat pump reacts differently than a gas appliance, and the thermal image can also differ greatly within a building. Anyone who ignores this often adjusts at the wrong point and is later surprised by high costs or unsteady room temperatures.
Why the basic temperature makes so much difference
The strongest lever often lies not in the technology itself, but in the target temperature in the room. If living spaces are made unnecessarily warm, consumption immediately increases because the system has to supply more energy to maintain this level. That's why it's worth first looking at the room temperatures in the most important zones, especially where no one is sitting or sleeping all the time.
Practical rule:First check the real requirements, then adjust the control. Otherwise you are just optimizing symptoms.
Those who first adapt the system to their own use not only save energy, but also reduce overheating and cold zones. In practice, you see this particularly in mixed-use houses, where one side often has sunlight and the other side has drafts or sluggish components that retain heat for longer. To get off to a clean start, it also helps to think about organizational points, such as reporting the new living situation in good time. Practical information on this can be found in the Tipps zum Melden des Umzugs bei der EWZ.
This applies to old buildings as well as to well-insulated new buildings, just with different adjusting screws. In older buildings, the sluggishness of the system often plays a role; in newer houses, it is more the fine-tuning of the control and the distribution across individual rooms. If you are aware of these differences, you use the settings specifically instead of adjusting them across the board.
What you should clarify before fine-tuning
Before you work on curves, valves or night reductions, you need an honest inventory. Do the target values correspond to everyday life? Does the system react sluggishly or too hectically. Are there rooms that remain noticeably cold despite the valves being open?
Such a check prevents you from optimizing in the wrong place. This is particularly important in Swiss houses because the age of the building, insulation standard and heating system require very different settings. Anyone who ignores these differences is giving away comfort and paying unnecessarily for heat that never reaches where it is needed in the house. For buildings with heat pumps, it is worth taking a closer look at the coordination of the system. In practice, an experiencedSpezialist für Wärmepumpenoften pays attention to different points than with a classic heating solution, and it is precisely these differences that make the noticeable difference in everyday life.
Checking the heating system and creating the conditions
Before a setting becomes noticeable in everyday life, the system must be technically clean. A radiator with air, too low a pressure or a stuck valve will distort any fine tuning. It then quickly appears as if the control is set incorrectly, although the cause is much simpler.
Checklist for the technical starting point
- Check heating pressure:For single-family homes in Switzerland, the optimal pressure isabout 1.5 to 2.0 bar. A pressure gauge shows immediately whether the system is below or above it. The orientation for this is provided by theQuelle mit Richtwert.
- Bleeding radiators:If a radiator remains cold at the top or gurgles, there is often air in the system. Venting that is carried outonce or twice a yearimproves the heat emission and can prevent unnecessary consumption.
- Check valves:Thermostatic valves should react smoothly and not get stuck. A stuck valve ensures that the room hardly responds to changes.
- Ensuring heat circulation:Furniture and curtains directly in front of radiators slow down the heat release. Air must be able to circulate freely, otherwise the valve measures the wrong temperature.
- Think about hot water and boiler values:The boiler should not be set unnecessarily high. In practice, a moderate setting usually makes sense so that the system does not constantly overshoot the target. The classification can be found in the Swiss guide, which covers the same basics about pressure, ventilation and boiler operation.
If a room remains cold despite the valves being open, the problem is often not the desired temperature, but the flow or the pressure.
Especially with heat pumps and mixed systems, it is worth taking a look at the system logic. An experiencedSpezialist für Wärmepumpenusually pays attention to different points than with a classic heating solution. This makes a clear difference in everyday life, especially where older buildings, underfloor heating and new control technology come together.
TheCheckliste für die erste Wohnung also helps for a practical start in a new apartment. If you organize the heating situation properly from the start, you will avoid later misadjustments and will recognize more quickly which settings suit your own living situation.
Adjust thermostat programming and heating curve
As soon as the basics are correct, it is worth taking a look at the control. Modern thermostats and digital controllers don't just work with on and off, but with a flow temperature that adapts to the weather and building behavior. This is exactly where it is decided whether a system runs smoothly or constantly works against its own inertia.
Adjust the heating curve in small steps
The heating curve of heat pumps is particularly sensitive. For well-insulated houses with underfloor heating, a heating curve slope of0.3 to 0.5is recommended, for radiators1.0 to 1.2, each graded according to the age of the building. These values help to control the flow temperature so that the rooms remain warm without being unnecessarily high.Detaillierte Zürcher Fachgrundlage
In practice, a calm approach works well. First note the current setting, then change the curve slightly, then observe for several days. Jumps that are too large almost always take their toll because the building reacts slowly and the effect only becomes visible with a delay.
Correctly distinguish between building age and system type
Not every house needs the same logic. For buildingsfrom 1995 to 2010there is a specific heating curve at12 to 15 °C, Minergie buildings require9 to 14 °C, and passive houses and Minergie-P buildings only depend on8 to 10 °Cflow temperature. These areas are important because the heat requirements of modern buildings differ significantly from older houses. BAFE-related information on the heating curve
The good setting cannot be recognized by the warm radiator, but by the fact that the room is heated without readjustment remains.
Anyone who uses a classic boiler or radiator often works with a different focus than with a heat pump. In thermally insulated houses, a finer, flatter characteristic curve is usually sufficient, while older free-standing buildings require a significantly different curve. Anyone who ignores these differences will either produce overheating in the transitional period or rooms that are too cool during frost.
What really works in practice
A clear test pattern is helpful, not constant turning in several places at the same time. The flow temperature is carefully corrected until the room remains stable without constant reheating. If the curves are not properly set, you often see the same pattern, too warm during the day, too cool in cold phases, and no one knows which change had which effect.
If you document the control properly, you will reach your goal faster. This is particularly true in new buildings and in systems that have already been modernized, because small adjustments can have a big impact.
Correctly adjust radiator valves and room temperatures
In a well-adjusted system, it is not only the heating curve that decides, but also how cleanly individual rooms are managed. Living rooms, kitchens and bedrooms need different setpoints, and this is where the biggest differences often arise in Swiss houses, especially between older radiator systems and more modern, more insulated buildings.Setting the heatingThis also means assessing each room according to use and construction, not according to habit.
Recommended room temperatures and Thermostat levels
| Room type | Recommended temperature | Thermostat level |
|---|---|---|
| Living rooms | 20 °C | Level 3 |
| Kitchen | 19 °C | Slightly below Living room |
| Bedroom | 17 °C | significantly reduced |
For living rooms,20 °Cis a useful basic orientation, for older people a slightly higher level may make sense. Kitchens and bedrooms often use less heat because they are used at different times and have different comfort requirements. This is not a sacrifice of comfort, but an adjustment to the actual needs.
How to read the valve in everyday life
A thermostatic valve does not adjust the room as desired, but reacts to the temperature directly at the valve head. If there is a curtain hanging in front of it, the heat arrives there too late or accumulates in front of the controller. If there is a sofa directly in front of it, air circulation is impaired and the heat given off is distributed unevenly.
In practice it often turns out that a room appears different in different places, even though the valves are set the same. Then it's worth taking a look at the furniture, clear airways and usage first before increasing the target temperature further. If you readjust properly, you usually gain more than just an additional degree on the controller.
Especially in small apartments with few heating surfaces, any misalignment is more noticeable. A compact floor plan reacts more quickly to blocked valves or poorly placed furniture, which is why clear room allocation is particularly worthwhile. Practical information on using small living spaces can also be found in theOrientierung für kleine Wohnungen, if radiators should remain free in everyday life.
When a deviation is a warning signal
If a room remains permanently warmer or colder than intended, there is usually more to it than an incorrect valve setting. Valve, flow or air distribution in the room are often the actual issue. Only when these points are correct will the control work as it should.
Create night reduction and schedules
Night reduction is not a general savings trick, but a question of inertia. Modern systems and especially underfloor heating do not react immediately, so the schedule has to take effect earlier than many users think. If you only work “an hour in advance”, you often don’t hit the right point.
Use the time offset correctly
The flow temperature should1 to 3 hours before the change of operationbe adjusted so that the system can compensate for its inertia. This is exactly how you can avoid the heating reacting too late and then having to push it too hard unnecessarily. BFE data for time adjustment
In everyday life this means that the start of lowering is not selected according to the calendar, but according to the heating system. A well-insulated building that reacts quickly needs something different than a massive old building that cools down slowly. Anyone who is familiar with this dynamic will have more comfort in the morning and less consumption at night.
Distinction between old buildings and new buildings
For modern, thermally insulated buildings, a reduction of2 to 3 °C is often enough, for old buildings it is more like3 to 4 °C. The difference is important because older buildings store heat differently and also lose it differently.SFGV-Infoblatt zur Heizung
However, a night mode that is too low is not a good solution. If the rooms have to be heated up again in the morning by force, this partially eats up the advantage. That's why nighttime reduction works best as a fine-tuned profile, not as a hard on-off change.
A simple daily rhythm as a guideline
If you work with fixed times, you should consciously set the transition before going to bed and before getting up. The system must not only react when the household is asleep or has already gotten up. The flow rate is particularly important with underfloor heating because the heat arrives more slowly in the room.
Good time programs adapt to the house, not to the desire for a quick shortcut.
This creates quieter operation with less overcontrol. The room remains pleasant in the morning, and the lowering does not lose any of its comfort just because it was technically planned correctly.
Troubleshooting and maintenance tips
If something doesn't fit despite good settings, the first thing to do is to look at the behavior of the system. Cold heating surfaces, fluctuating temperatures or audible noises are usually not a mystery, but rather indications of air in the system, too little pressure or a valve that is not working properly. In practice, if you check the cause step by step, you will usually reach your goal quicker than with constant adjustments.
Typical malfunctions and the appropriate reaction
- Cold radiators above:There is usually air in the system, then venting helps.
- Too little heat throughout the house:The pressure may be too low, then it needs to be refilled or checked.
- A room hardly reacts:The thermostatic valve may be hanging or dirty.
- Irregular noises:Often they indicate flow problems or unfavorable valve positions
The maintenance routine is also part of it. A ventOnce or twice a yearremains useful, especially if radiators no longer warm up completely or individual rooms react significantly more slowly. Regular maintenance keeps the system running more smoothly and can noticeably stabilize consumption in everyday life.
When specialist help makes sense
If the pressure keeps falling despite refilling, a valve does not move cleanly or a heating circuit remains permanently abnormal, the specialist company is involved. Then it's no longer about fine-tuning, but about the technical health of the system. Especially in older systems with more complex hydraulics, even a small mechanical problem can distort the control and weaken the effect of all settings.
Conclusion and recommendations for action
Anyone who takesSetting the heatingseriously starts with the system itself, not with the feeling of space alone. First check the pressure, ventilation and valves, then fine-tune the heating curve and night setback, then allocate the room temperatures properly. The greatest benefit occurs where the system type, building age and use match.
The quickest steps are usually the most effective. Anyone who checks the pressure today, adjusts the thermostat levels in everyday life tomorrow and then sets a suitable time profile will often feel the difference without having to wait long. After that, the only thing worth doing is to quietly observe the settings for a few days and only then sharpen them further.
If you now want to properly organize not only the heating, but also the next step in your living space, use TIXPI as a practical contact point for transport, delivery and flexible support around the household.