[net.misc] Why don"t thermostats work?

hrs@houxb.UUCP (H.SILBIGER) (02/17/84)

The new Sears solid state programmable thermostat indeed looks at
the rate of change in the room temperature to help maintain a
setpoint. It therefore is capable of holding the house temperature
quite steady.
This could potentially cause problems on the air-conditioning
mode, since the compressor of a house airconditioner should not
cycle too often (most of them have a built in delay relay).
In the airconditioning mode the thermostat has a programmed in delay
of 4 min.
It is also possible to get osciillation in the heating mode.
If this happens the user can program in a delay there as well.
The time program allows for four temperature changes per day,
on a 2 and 5 day series basis (weekday and weekend).
There is also an override for the current time period and for
all time periods.
A nice package, especially when on sale in the mail order flyer
at $ 70.0
Herman Silbiger
AT&T-IS Lincroft

hrs@houxb.UUCP (H.SILBIGER) (02/17/84)

Re: the Magicstat -
The only(!) way to program the temperature setting is by pushing
a button at the apprpriate time of day, it does not have a settable
clock. Therefore, if you want heat at 6 am, you have to be up at
6 am am on one day to push the button to program it.
It also does not have an alphanumeric display for time and temp,
just some led's. It can only be set for even temps in F. The Sears
can be either F or C in single degree increments. Set times in
the Sears only go in 15 min. increments, however.

Re: electric blankets. These have the thermostat sown into the blanket
fabric. Some of the good ones have more than one. I prefer a down
comforter. No danger of shock or fire, and just as light.
Herman Silbiger
AT&T-IS Lincroft