Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?

"gcotterl" wrote in message
...
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?

It is actually the temperature they go off as the set temperature is met. I
know what you mean though, one is for winter heating, the other for summer
cooling.

Most thermostats have to be moved from heat to cool so if that is the case,
the actual set temperature does not matter. If yours is fully automatic,
then yes, the heat is below the cooling number In some industrial
applications it is possible to run both heat and AC at the same time to get
humidity control.

gcotterl wrote:
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?
Hi,
Easy to remember this way; cool down to, heat upto the set temp.

Except that most people to save on energy costs will cool up and warm down.
A setting of 68-70 in winter will save on heating costs while a setting of
76-78 in summer will save on cooling cost.


"Tony Hwang" wrote in message
...
gcotterl wrote:
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?
Hi,
Easy to remember this way; cool down to, heat upto the set temp.

Mark wrote:
Except that most people to save on energy costs will cool up and warm
down. A setting of 68-70 in winter will save on heating costs while a
setting of 76-78 in summer will save on cooling cost.


"Tony Hwang" wrote in message
...
gcotterl wrote:
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?
Hi,
Easy to remember this way; cool down to, heat upto the set temp.

Hmmm,
My power and NG cost is fixed for long term. Any way is there any one
who does not know that? One reason using programmable 'stat is to save
energy. I use wireless 'stat. In summer, it moves to upstairs, in
winter, it relocates to downstairs.

Hi Tony,

What do mean 'fixed for long term'? I'm locked in for a price per CCF on my
gas for the next year, but the electric has yet to get the competition in
our area so cost per KWH varies by month. Regardless the unit price, I
still pay by how much I consume.

I haven't seen a wireless stat. I'll have go Google that! My stat is
located in a hallway where it isn't always indicative of the temp I want in
the living space. I have to adjust regularly based on what rooms we're
using and the time of day. A wireless sounds like just what I need!

Mark

"Tony Hwang" wrote in message
...
Mark wrote:
Except that most people to save on energy costs will cool up and warm
down. A setting of 68-70 in winter will save on heating costs while a
setting of 76-78 in summer will save on cooling cost.


"Tony Hwang" wrote in message
...
gcotterl wrote:
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?
Hi,
Easy to remember this way; cool down to, heat upto the set temp.

Hmmm,
My power and NG cost is fixed for long term. Any way is there any one who
does not know that? One reason using programmable 'stat is to save energy.
I use wireless 'stat. In summer, it moves to upstairs, in winter, it
relocates to downstairs.

"Mark" wrote in message
...
Hi Tony,

What do mean 'fixed for long term'? I'm locked in for a price per CCF on
my gas for the next year, but the electric has yet to get the competition
in our area so cost per KWH varies by month. Regardless the unit price, I
still pay by how much I consume.

I haven't seen a wireless stat. I'll have go Google that! My stat is
located in a hallway where it isn't always indicative of the temp I want
in the living space. I have to adjust regularly based on what rooms we're
using and the time of day. A wireless sounds like just what I need!

Don't worry about it...Soon you will get a wireless stat from The Obamalord
and the government will decide how warm or cool your home is comrade...



Mark

"Tony Hwang" wrote in message
...
Mark wrote:
Except that most people to save on energy costs will cool up and warm
down. A setting of 68-70 in winter will save on heating costs while a
setting of 76-78 in summer will save on cooling cost.


"Tony Hwang" wrote in message
...
gcotterl wrote:
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?
Hi,
Easy to remember this way; cool down to, heat upto the set temp.

Hmmm,
My power and NG cost is fixed for long term. Any way is there any one who
does not know that? One reason using programmable 'stat is to save
energy. I use wireless 'stat. In summer, it moves to upstairs, in winter,
it relocates to downstairs.

Mark wrote:
Hi Tony,

What do mean 'fixed for long term'? I'm locked in for a price per CCF
on my gas for the next year, but the electric has yet to get the
competition in our area so cost per KWH varies by month. Regardless the
unit price, I still pay by how much I consume.

I haven't seen a wireless stat. I'll have go Google that! My stat is
located in a hallway where it isn't always indicative of the temp I want
in the living space. I have to adjust regularly based on what rooms
we're using and the time of day. A wireless sounds like just what I need!

Mark

"Tony Hwang" wrote in message
...
Mark wrote:
Except that most people to save on energy costs will cool up and warm
down. A setting of 68-70 in winter will save on heating costs while
a setting of 76-78 in summer will save on cooling cost.


"Tony Hwang" wrote in message
...
gcotterl wrote:
Is the "cool setpoint" the temperature when the air-conditioner goes
on?
Is the "heat setpoint" the temperature when the heater goes on?

Should the "cool setpoint" temperature be higher than the "heat
setpoint" temperature?
Hi,
Easy to remember this way; cool down to, heat upto the set temp.

Hmmm,
My power and NG cost is fixed for long term. Any way is there any one
who does not know that? One reason using programmable 'stat is to save
energy. I use wireless 'stat. In summer, it moves to upstairs, in
winter, it relocates to downstairs.

Hi.
My KWh and Gigiajoule rate won't change next 5 years.

Tony Hwang wrote:

One reason using programmable 'stat is to save
energy.

That's the theory at least, however the savings are mostly based on
unoccupied times, and for folks who are retired or otherwise always at
home, those opportunities don't really exist. Rather similar to hybrid
cars getting lousy MPG in areas with high speed roads and little stop
and go traffic, the savings opportunities just don't exist.

Pete C. wrote:

Rather similar to hybrid
cars getting lousy MPG in areas with high speed roads and little stop
and go traffic, the savings opportunities just don't exist.

The only hybrid I have read very detailed info on is the Prius. The EPA
mileage is 48 city, 45 highway (EPA gives an idea what mileage is like).
Consumer Reports *tests* had a higher highway mileage than city with
44mpg overall. (That is for the old Prius - there is a new 2010 model
out - haven't seen much info except mileage is higher.)

The Prius does not get "lousy" highway mileage.

The Prius gets high highway mileage because:
- I has a relatively small engine. You don't need high end power often
and when it is needed both the gas engine and electric motors are used.
The engine operates in a more efficient band.
- The gas engine is a more efficient Atkinson cycle - the intake valves
stay open part of the compression stroke making the compression stroke,
in effect, shorter than the power stroke. More of the energy is captured
on the power stroke. The engine can change the valve timing. I have not
seen it explained, but I believe the engine shifts toward a conventional
engine when high power is needed.

A Ford Fusion hybrid coming out has the features above - haven't seen
details.

--
bud--

Boy did you guys get off-topic!

Back to the OP's question on set-back thermostats - My parents, both
retired, had one and used it much the same way my wife and I use ours, even
though they were home during the day while we use ours while we are at work.
They set it cooler at night when in bed, warm things up just before they get
up so it is comfortable while they are getting dressed, and sitting around
reading the paper and eating breakfast. They set it back during the middle
of the day when they are more active, and then warm it back up some in the
evening while eating dinner and watching TV. Seems reasonable that it is
working in much the same why ours is when we aren't home.



"Pete C." wrote in message
ster.com...

Tony Hwang wrote:

One reason using programmable 'stat is to save
energy.

That's the theory at least, however the savings are mostly based on
unoccupied times, and for folks who are retired or otherwise always at
home, those opportunities don't really exist. Rather similar to hybrid
cars getting lousy MPG in areas with high speed roads and little stop
and go traffic, the savings opportunities just don't exist.