Since you but always comes in the house on wet corners and specifically asked during the cold season, where the heat goes, you should 1 See the Bosch Thermotechnology detector PTD times more accurate.
For a moderate price, you get a simple to use device that relentlessly shows a weaknesses in and around the house.
Thermal bridges on windows are found quickly, as the mold-prone areas.
Also measuring the surface temperature is great. One can thus find Ruck Zuck whether the heater operate properly.
The only downside is that after successful use of PTD 1 possibly the to-do list for repairs and construction is significantly expanded :-)
By us a strong buy recommendation.
