I think you can also fiddle with them to get a different setting, like mount it
I have used the programmables, and its great when needed. Right now, my smaller
heats up much faster than the old. For the most part having the automatic
function is not necessary, and I just set it when I come or go.
Precision, accuracy yes, but on comfort im comfortable, I adjusted the
anticipator. He did ask for reliable-cheap, there is good reason
Honywell still makes and sells them. When lightning hit us the digital
was fried and the round honywell survived, and battery replacing can
be put off unitl it dies as I just did. My Lux I wouldnt trust as its
failed to shut off once, a remote Honeywell would be real nice. I
wonder if they have one you could call on the phone for remote
changing of temp. What happens on a battery digital unit if the
battery fails while its calling for heat, that worries me.
Nothing to be worried about if the battery fails while the furnace is
running. Without power the thermostat is off. If you pulled the
battery while the thermostat was closed and calling for heat, the
circuit goes open and the furnace will shut off.
The other problem, which is loss of battery when freezing could occur
is a problem. But many of the digital thermostats have a backup
mechanical switch that will close at around 40 deg.
With millions of these in use for decades now, they apparently are
reliable and safe or you'd hear about it.
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