On 4/7/18 12:56 AM, mike wrote:
What is it that makes a stable temperature undesirable?

I want the furnace to run only once every few hours.
I'm willing to put up with the temperature swings as a
result of doing so. I realize that may be different from
what most others might want or expect.
But that's what _I_ want.

That's what I'm doing now.
I turn the thermostat "way up" before bed, let things get
just a little "overly warm".
Then I turn the thermostate "way down" so that the furnace
won't run at all overnight.
Of course, it's on the chilly side in the morning, so I
repeat the process.
A good "warm up" in the morning seems to last all the way
into the evening at this time of year.

I'd like to set those "wide swing points" on the thermostat
itself.
But if I can't, I'll just set them manually (I'm retired and
home most of the time).