Why You Feel Cold at Home When the Thermostat Says It Is Warm
A thermostat measures air temperature; your body feels four other things. What they are and how to fix them.
Last updated: 15 October 2026.
The thermostat says 20°C. You are sitting under a blanket with cold feet. You are not being difficult. A thermostat measures one thing, the temperature of the air around it, and your body responds to at least four others. Once you know them, the fixes are obvious, and most are cheap.
1. Cold surfaces pull heat out of you
Your body exchanges heat by radiation with every surface it can see. Sit next to a single-glazed window or an uninsulated external wall in winter and you lose heat to it, even if the air between you is warm. Engineers call this the mean radiant temperature, and it is why a room with warm air and cold walls feels chilly.
Fix: close curtains at dusk, move your chair away from external walls and windows, put a rug on a cold floor, and put a bookcase or a wall hanging on the coldest wall.
2. Moving air feels colder than still air
A draught from a door, a window frame, a chimney or a floorboard gap strips heat from skin far faster than still air at the same temperature. You may not feel it as a breeze; you feel it as being cold on one side.
Fix: draught excluders, self-adhesive seal strips round windows and doors, a chimney balloon in an unused fireplace. A lit candle held near frames will show you where the air comes in; keep it away from curtains.
3. The floor is the coldest part of the room
Warm air rises and cool air sinks, so the air at ankle height can be several degrees colder than at the thermostat on the wall. If your feet are cold, your whole body feels cold.
Fix: get your feet up, wear wool socks and soled slippers, and cover your legs. A long wearable layer that reaches the ankle and stays on when you move is the simplest version; Enfold is ours.
4. Sitting still makes less heat
Your body's heat output roughly doubles between sitting and walking slowly. A temperature that felt fine while you were cooking feels cold an hour into a film.
Fix: add a layer when you sit down, not when you notice you are cold. Get up every hour.
5. Damp air feels colder
Humid air conducts heat away from the body more readily, and damp clothing and bedding lose much of their insulation. Older houses, drying laundry indoors and poorly ventilated bathrooms all add moisture.
Fix: ventilate briefly every day, use extractor fans, dry laundry outside or in a ventilated room, and consider a dehumidifier.
When it might be you, not the house
If you feel cold when everyone around you is comfortable, all the time, it is worth talking to a doctor. An underactive thyroid, iron-deficiency anaemia, low body weight, poor circulation and some medications can all make people feel the cold more. This is not something a blanket fixes, and it is worth ruling out.
Related
Common questions
Why is my house cold even with the heating on?
Usually cold surfaces (windows and external walls), draughts, cold floors or damp air. The thermostat measures air temperature in one spot, while your body loses heat to everything around it.
Why do I feel cold at 20 degrees?
If you are sitting still, near a cold window or wall, with cold feet or in a draught, 20°C air can feel cold. If you feel cold when others are comfortable most of the time, talk to a doctor, as thyroid problems and anaemia can be causes.
Why are my feet always cold at home?
Cool air sinks, so the floor is the coldest part of the room, and cold floors draw heat out through your soles. Wool socks, soled slippers, a rug and keeping your feet off the floor help.