Not very well, I am finding.
I don't mean the physics of it. I know that current I goes through
resistor R and the power in = power out which is I-squared R. Each kW in
gives about 3400 BTU/hr of heat.
I have baseboard heat with "Chromalox" thermostats. There is about an
8-degree difference between turn on and turn off. Methinks the current
does some heating of the thermostat itself, as the heat turns off before
the room reaches anywhere near the dialed temperature.
Temps here are in degrees F.
For instance, I have one thermostat set at 78, the temp near it is 63
and the heat still turns on and off. Another in the bedroom is set at
73, the temp never gets much above 64 and the heat still cycles on and
Until a year ago I always lived in houses with forced air gas heat. At
least at the thermostat, the temp never varied much from 68. Other parts
of the house might get cold if it got really cold outside, but not like
this house with electric heat, where it is always colder inside when it
is colder outside, with the same thermostat settings.
Thermostats were likely installed 30 years ago. Presumably there is no
relay so all current going through baseboard also goes through the
thermostat. Or is there a relay in the baseboard heater?
Someone on misc.rural suggest I replace the thermostats. Someone else
suggested I post here.