How to position your indoor sensor for more even heating

Place the indoor sensor where it gives a representative reading of your home's temperature and is affected as little as possible by sunlight. A room that receives a lot of afternoon or evening sun can cause heating to be reduced too much before nightfall. In a slow-responding water-based heating system, this can contribute to temperature swings and a cold house in the morning.

Why can evening sun lead to cold mornings?

Ngenic Tune adjusts heating using, among other things, the temperatures from the indoor sensors selected for heating control. If the sun warms the sensor or the room it is in, the system may register that the house is warm enough even though other areas still need heat.

This can be particularly unhelpful in the afternoon and evening, when the outdoor temperature is often falling. Solar warmth may keep the temperature around the sensor high just as the rest of the house starts to need more heating.

Water-based heating systems do not respond instantly. If heating has been reduced during the sunny hours, it may take time to restore warmth after the sun disappears. This can cause temperature swings during the evening and night and a temperature that is too low in the morning. The effect depends on the house and how slowly the heating system responds.

Choose a more neutral location

• Choose an area that receives little sunlight and where the temperature reflects the comfort you want.
• A location in the northern part of the house can be a good option. The eastern part may also work well, particularly if it mainly receives morning sun.
• Keep the sensor itself out of direct sunlight. Remember that the whole room can become warm from the sun even if the sensor is in the shade.
• Avoid placing it close to a fireplace, radiator or another local heat source.

If you need to choose between morning sun and afternoon or evening sun, morning sun is usually preferable. Outdoor temperatures are generally rising in the morning, whereas evening sun can keep the sensor warm just as it gets colder outside. A neutral location with little solar influence remains the first choice. Compass direction is only a guide: what matters is how sunlight actually affects the location.

Several indoor sensors can give a more balanced picture

With several indoor sensors in representative locations, heating control depends less on the temperature in a single room. This can be particularly useful in homes with several floors or large temperature differences between sunny and shaded rooms.

In the app, you choose which indoor sensors take part in heating control. When several are selected, Tune uses their average temperature. Choose sensors that together represent the areas where you want consistent warmth.

Using several sensors does not replace good placement. Even one of several sensors can affect heating control if it becomes very warm from sunlight. Tune controls the home's shared heating system; it does not regulate each room separately.

If the house feels cold in the morning

Start by reviewing the locations of the sensors selected for heating control. Try a more neutral location or a more representative selection of sensors, then follow how the temperature develops during the evening, night and morning.

If the problem continues, contact us at support@ngenic.se. Tell us when it gets cold, where the sensors are placed and which ones are selected for heating control. Cold mornings can also have causes other than sunlight.