Hi, I have an electric heater that can be controlled to within 1/10 of a degree centigrade, and also temperature monitoring software that reports the temperature. I have noticed that early in the morning I am comfortable with a temperature of 22ºC, but as we approach noon I need the temperature to be about 25ºC. Initially, I thought this was strange because the external temperature is colder early in the morning. The only explanation I can think of is that the house is well insulated and has a long time constant, so that early in the morning the walls are still warm from the previous afternoon, while the air in the room is cool, thanks to contact with the cooler glass window, resulting in the thermostat registering a low temperature, while my body still feels comfortably warm due to thermal radiation from the walls. As the day progresses, the temperature of the walls drops, forcing my body to rely more heavily on air temperature, so I need the temperature to be higher.
Thoughts? Buy electric cars and recharge them from solar panels on your roof.
