"Steve@carolinabreezehvac" wrote in
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"Rod Speed" wrote in message
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"Steve@carolinabreezehvac" wrote
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"Rod Speed" wrote in message
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"Steve@carolinabreezehvac"
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"Rod Speed" wrote in message
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Rod Speed wrote:

You can get thermostats that have two settings and you
can specify the time that each setting applys for, so you
can have it warm the house back to 20 say an hour
before you normally get up...

Do any of them average air and wall temps like the Honeywell 8900,
so the house can be comfy sooner, with warmer air and cooler
walls?

Thats the result you get with any normal thermostat.


Actually, no...

Hes talking about Smart Recovery, or the like, where the unit learns
the
temp rise in the home over a given period of time and adjusts the
settings
automatically in leu of the programmed settings so that if hes got it
set
for say...75F at 7am, its 75F at 7am, not starting its burn at 7am
from
say...65F.

OK, but thats nothing like what he said, 'with warmer air and cooler
walls'


Missed that part...must be from working in the field so much, and
hearing
what they say, and figuring out what they mean...

Since nick only cross posted this tiny subthread, what
do you think about the other claim being discussed,

Since I didnt get the entire post, what group are you posting from,

It first showed up in mcfl

and I will bounce over and check it out and see it all in its entirety.
I see whats below but would like to try to follow it in its form.

Rod Speed wrote
Dennis wrote
George wrote
Rod Speed wrote

and how you raise the temp in the morning. If it's a heat pump
and you crank it up so it uses the backup or "emergency" heat,

Utterly mangled. That effect is only seen when the outside
coil has iced up. By definition that wont happen in that situation.

The standard configuration for a heat pump is to bring on the
"emergency" resistance heaters when a certain differential
between setpoint and actual temperature is reached. That is
why people who have never had a heat pump get huge electrical
bills when they try to do a setback. As soon as they raise the
setpoint both the resistance heaters and the heat pump will come on.

Correct. My heat pump doesn't even have an outside
coil, yet if I raise the thermostat from 65F to 68F all
at once, the resistive backup strips come on.

There's gotta be setback thermostats buyable that
dont do that when changing to the daytime temp.