CJT wrote:
Wayne Whitney wrote:
....

...You will reach equilibrium with everything at 70 degrees sooner.
....

Well said.

Even if so (and I think it would take a pretty exceptional house design
for it to make any discernible difference in any practical sense), it
will certainly be more expensive and the time to reach the initial
setpoint is still the same so at best it's a period after that initial
warmup at most that can be affected at all.

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