Re: [Vo]:different temperatures
In reply to Jed Rothwell's message of Fri, 17 Nov 2023 19:26:01 -0500: Hi, [snip] >Robin wrote: > > >> I have an electric heater that can be controlled to within 1/10 of a >> degree centigrade . . . > > >That is remarkable. That is a laboratory grade thermostat. I should have said precision, not accuracy. It can be done with a DS18B20, a microprocessor, and a relay. [snip] Actually, the sensor is under the window, so cold air coming off the window will fall onto the desk, and hit the sensor. >Get an IR camera! >(Borrow one . . . they are expensive.) No, not worth the trouble. Buy electric cars and recharge them from solar panels on your roof.
Re: [Vo]:different temperatures
Robin wrote: > I have an electric heater that can be controlled to within 1/10 of a > degree centigrade . . . That is remarkable. That is a laboratory grade thermostat. > 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 . . . That is interesting. Put a thermometer near the windows. Get an IR camera! (Borrow one . . . they are expensive.)
