A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.



I have an "antique" alcohol bulb thermometer (which I know to accurate),
mounted next to our digital thermostat. They are spot on with each other.

Find a callibrated analog thermometer and compare your thermostat with
that.

--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 2dys 7hrs 58mins
*******************************************
Dupe, dupe, dupe, Dupe of Earl, dupe,
dupe . . .

If you don't have fever put them in your mouth

"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to accurate),
mounted next to our digital thermostat. *They are spot on with each other.

Find a callibrated analog thermometer and compare your thermostat with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

On Sat 11 Oct 2008 04:21:02p, allanc told us...

On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to accurate),
mounted next to our digital thermostat. *They are spot on with each oth
er.

Find a callibrated analog thermometer and compare your thermostat with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?


Beats me. I don't know any place that's giving them away. I inherited
mine, but would buy one if I felt I needed it.

--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 2dys 7hrs 10mins
*******************************************
CONgress (n) - Opposite of PROgress
*******************************************

Not necessarily accurate. Not everyone's body temperature is 98.6°F.

On Sat 11 Oct 2008 04:13:43p, Old and Grunpy told us...

If you don't have fever put them in your mouth

"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.







--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 2dys 7hrs 9mins
*******************************************
I've already told you more than I know.
*******************************************

On Oct 11, 7:50*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:21:02p, allanc told us...





On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to accurate),
mounted next to our digital thermostat. *They are spot on with each oth
er.

Find a callibrated analog thermometer and compare your thermostat with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

Beats me. *I don't know any place that's giving them away. *I inherited
mine, but would buy one if I felt I needed it.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 7hrs 10mins * * * * *
*******************************************
* * CONgress (n) - Opposite of PROgress * *
*******************************************- Hide quoted text -

- Show quoted text -

So, what does the average person do that buys a thermostat?

"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.


For openers make up a mixture of ice and water. Before the ice is all melted
check the water temperature. 32F right?

With a normal household thermometer you won't be able to check the boiling
point, but the cold test will tell you if the glass is in the right position
against the scale.

On Oct 11, 8:00*pm, "Charlie" wrote:
"allanc" wrote in message

...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

For openers make up a mixture of ice and water. Before the ice is all melted
check the water temperature. 32F right?

With a normal household thermometer you won't be able to check the boiling
point, but the cold test will tell you if the glass is in the right position
against the scale.

One of the digital thermometers ranges from about 66-86.
I do not know about the other.
Are you suggesting that I submerse the other?
I have no idea if it is waterproof.

On Sat 11 Oct 2008 04:57:22p, allanc told us...

On Oct 11, 7:50*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:21:02p, allanc told us...





On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its
accurac
y.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to
accurate
),
mounted next to our digital thermostat. *They are spot on with each
oth
er.

Find a callibrated analog thermometer and compare your thermostat
with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

Beats me. *I don't know any place that's giving them away. *I inherit
ed
mine, but would buy one if I felt I needed it.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 7hrs 10mins * * * * *
*******************************************
* * CONgress (n) - Opposite of PROgress * *
*******************************************- Hide quoted text -

- Show quoted text -

So, what does the average person do that buys a thermostat?


The "average" person probably doesn't give a damn about a 2-3 degree
difference.

In fact, thermostats (either analog or digital) that automatically switch
from heating to cooling depending on demand, usually have a 2-3 degree
variance or threshhold for that changeover.

If it's that important to you, fork over the money for a calibrated
thermometer and check and calibrate your digital thermostat. If the money
bothers you, take the damned thing back after you've used it.

Is there a difference between the digital thermometer reading on your
thermostat and the digital setting? They are independent of each other.

--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 2dys 6hrs 53mins
*******************************************
Without my ignorance, your knowledge
would be meaningless..

On Oct 11, 8:13*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:57:22p, allanc told us...







On Oct 11, 7:50*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:21:02p, allanc told us...

On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its
accurac
y.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to
accurate
),
mounted next to our digital thermostat. *They are spot on with each
oth
er.

Find a callibrated analog thermometer and compare your thermostat
with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

Beats me. *I don't know any place that's giving them away. *I inherit
ed
mine, but would buy one if I felt I needed it.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 7hrs 10mins * * * * *
*******************************************
* * CONgress (n) - Opposite of PROgress * *
*******************************************- Hide quoted text -

- Show quoted text -

So, what does the average person do that buys a thermostat?

The "average" person probably doesn't give a damn about a 2-3 degree
difference.

In fact, thermostats (either analog or digital) that automatically switch
from heating to cooling depending on demand, usually have a 2-3 degree
variance or threshhold for that changeover.

If it's that important to you, fork over the money for a calibrated
thermometer and check and calibrate your digital thermostat. *If the money
bothers you, take the damned thing back after you've used it.

Is there a difference between the digital thermometer reading on your
thermostat and the digital setting? *They are independent of each other..

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 6hrs 53mins * * * * *
*******************************************
* *Without my ignorance, your knowledge *
* * * * * would be meaningless.. * * * * *- Hide quoted text -

- Show quoted text -

Sorry, did not mean to upset you.
No, the reading and heat setting both are the same.

On Sat 11 Oct 2008 05:15:36p, allanc told us...

On Oct 11, 8:13*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:57:22p, allanc told us...







On Oct 11, 7:50*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:21:02p, allanc told us...

On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last
weeken
d.
The inside temperature reads 68 and I am trying to check its
accurac
y.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to
accurate
),
mounted next to our digital thermostat. *They are spot on with ea
ch
oth
er.

Find a callibrated analog thermometer and compare your thermostat
with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have
to
'buy' in order ro check my thermostat?

Beats me. *I don't know any place that's giving them away. *I inhe
rit
ed
mine, but would buy one if I felt I needed it.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 7hrs 10mins * * * * *
*******************************************
* * CONgress (n) - Opposite of PROgress * *
*******************************************- Hide quoted text -

- Show quoted text -

So, what does the average person do that buys a thermostat?

The "average" person probably doesn't give a damn about a 2-3 degree
difference.

In fact, thermostats (either analog or digital) that automatically
switch
from heating to cooling depending on demand, usually have a 2-3 degree
variance or threshhold for that changeover.

If it's that important to you, fork over the money for a calibrated
thermometer and check and calibrate your digital thermostat. *If the mo
ney
bothers you, take the damned thing back after you've used it.

Is there a difference between the digital thermometer reading on your
thermostat and the digital setting? *They are independent of each other
.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 6hrs 53mins * * * * *
*******************************************
* *Without my ignorance, your knowledge *
* * * * * would be meaningless.. * * * * *- Hide quot
ed text -

- Show quoted text -

Sorry, did not mean to upset you.
No, the reading and heat setting both are the same.


You didn't upset me. If I understand correctly, one of the digital
thermometers you're testing with is matching the one on your thermostat.
One does not match. That's two out of three. I'd go with that and forget
about it.

As an aside, I was trying to find an accurate oven thermometer. Looking at
them in the store, there weren't any two that showed the same reading.
(These were bi-metal spring type thermometers.) I bought five of them,
knowing that I might return at least four if not all of them. When I
tested them all in the oven, I still got five different readings. I ended
up taking them all back and buying a glass tube/bulb thermometer that was
guaranteed to be accurate withint +/- 1 degree.

--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 2dys 6hrs 44mins
*******************************************
Confuse people ... quote from the
wrong message.

On Oct 11, 8:23*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 05:15:36p, allanc told us...







On Oct 11, 8:13*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:57:22p, allanc told us...

On Oct 11, 7:50*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:21:02p, allanc told us...

On Oct 11, 7:03*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last
weeken
d.
The inside temperature reads 68 and I am trying to check its
accurac
y.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to
accurate
),
mounted next to our digital thermostat. *They are spot on with ea
ch
oth
er.

Find a callibrated analog thermometer and compare your thermostat
with
that.

--
* * * * * * *Wayne Boatwright * * * * * *
Hmmm.
Where do I find a callibrated analog thermometer that I do not have
to
'buy' in order ro check my thermostat?

Beats me. *I don't know any place that's giving them away. *I inhe
rit
ed
mine, but would buy one if I felt I needed it.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 7hrs 10mins * * * * *
*******************************************
* * CONgress (n) - Opposite of PROgress * *
*******************************************- Hide quoted text -

- Show quoted text -

So, what does the average person do that buys a thermostat?

The "average" person probably doesn't give a damn about a 2-3 degree
difference.

In fact, thermostats (either analog or digital) that automatically
switch
from heating to cooling depending on demand, usually have a 2-3 degree
variance or threshhold for that changeover.

If it's that important to you, fork over the money for a calibrated
thermometer and check and calibrate your digital thermostat. *If the mo
ney
bothers you, take the damned thing back after you've used it.

Is there a difference between the digital thermometer reading on your
thermostat and the digital setting? *They are independent of each other
.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 6hrs 53mins * * * * *
*******************************************
* *Without my ignorance, your knowledge *
* * * * * would be meaningless.. * * * * *- Hide quot
ed text -

- Show quoted text -

Sorry, did not mean to upset you.
No, the reading and heat setting both are the same.

You didn't upset me. *If I understand correctly, one of the digital
thermometers you're testing with is matching the one on your thermostat. *
One does not match. *That's two out of three. *I'd go with that and forget
about it.

As an aside, I was trying to find an accurate oven thermometer. *Looking at
them in the store, there weren't any two that showed the same reading. *
(These were bi-metal spring type thermometers.) *I bought five of them,
knowing that I might return at least four if not all of them. *When I
tested them all in the oven, I still got five different readings. *I ended
up taking them all back and buying a glass tube/bulb thermometer that was
guaranteed to be accurate withint +/- 1 degree.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 6hrs 44mins * * * * *
*******************************************
* * *Confuse people ... quote from the * *
* * * * * * * wrong message. * * * * * * *- Hide quoted text -

- Show quoted text -

I didn't explain the standalone digital thermometers properly.
Sometimes they read the same 71/71 and sometimes not 69/71.
I am looking at them right now as they are on my desk.
One is 71 and the other is about 72.

When they were on top of the thermostat - they both had higher
readings.

One of them is 'progressive' in that the possible temps are on a
horizontal display (66-86) in even digits.
The current temperature becomes visible as it changes to green.
When the temperature is 'odd' (eg 73), both 72 & 74 will be visible.
Right now, 72 is green, 74 is light brown and 76 is darker brown.
Makes no sense to me.
I don't know how else to explain the thermometer and can not think of
what the technology is called... LED possibly?
I would think that my other digital is also LED.

Make ice cubes out of distilled water. Make a mixture of ice cubes and
distilled liquid water, and shake it up good. When you're sure it's all 32F,
soak the thermometers. the one which reads 32F is correct. The others are
not.

Only an engineer could spend so much time on two degrees.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

Nevermind the expense. What is truth worth to you, man!

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"allanc" wrote in message
...
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

Turns it up and down to find a comfortable temp, and then no one cares what
the number is that makes for comfort. The average person replaces the
thermostat four or five times when the furnace stops putting out heat.
"After all, it's got to be the thermostat". and then calls the HVAC pro.

Reminds me, I did get such a call about two years ago. Some friends of mine
had replaced the thermostat four times before calling me. The problem was
actually unrelated.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"allanc" wrote in message
...

So, what does the average person do that buys a thermostat?

Total submersion is the only accurate test.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"allanc" wrote in message
...
On Oct 11, 8:00 pm, "Charlie" wrote:
"allanc" wrote in message

...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

For openers make up a mixture of ice and water. Before the ice is all
melted
check the water temperature. 32F right?

With a normal household thermometer you won't be able to check the boiling
point, but the cold test will tell you if the glass is in the right
position
against the scale.

One of the digital thermometers ranges from about 66-86.
I do not know about the other.
Are you suggesting that I submerse the other?
I have no idea if it is waterproof.

you do know that heat comes out of the thermostat. so putting a thermometer
on top will not give accurate reading.
my bad, dumb question. obviously you dont or u wouldn't put it on top.

"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

You are right.
I never thought of that.

When we moved in here, the mechanical thermostat was off by about 8
degrees.
We would set the heat for 68 and be sweltering.

Right now, these 2 standalone digital thermometers are really bugging
me.
One is at 71 and the other somewhere between 72 and 76.
I think it is time to toss the second.

On Oct 11, 9:35*pm, "Bob" wrote:
you do know that heat comes out of the thermostat. *so putting a thermometer
on top will not give accurate reading.
my bad, dumb question. *obviously you dont or u wouldn't put it on top.

"allanc" wrote in message

...



A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.- Hide quoted text -

- Show quoted text -

Bob wrote:
you do know that heat comes out of the thermostat. so putting a thermometer
on top will not give accurate reading.
my bad, dumb question. obviously you dont or u wouldn't put it on top.

"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

That's a good point. Another would be
that various electronic units have
different
thermal mass, i.e. they take longer or
shorter times to warm up or cool down. For
instant reading a small thermocouple
will give the fastest response .... but
don't stand
close to it or it will be reading heat
radiating from your body.

Art Todesco wrote in
:

Bob wrote:
you do know that heat comes out of the thermostat. so putting a
thermometer on top will not give accurate reading.
my bad, dumb question. obviously you dont or u wouldn't put it on
top.

"allanc" wrote in message

...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its
accuracy. I compared it to two free standing digital thermometers
which I balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

That's a good point. Another would be
that various electronic units have
different
thermal mass, i.e. they take longer or
shorter times to warm up or cool down. For
instant reading a small thermocouple
will give the fastest response .... but
don't stand
close to it or it will be reading heat
radiating from your body.


most electronic thermostats use thermistors.
about the size of a small seed.

--
Jim Yanik
jyanik
at
kua.net

On Sat 11 Oct 2008 05:57:08p, allanc told us...

On Oct 11, 8:23*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 05:15:36p, allanc told us...







On Oct 11, 8:13*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:57:22p, allanc told us...

On Oct 11, 7:50*pm, Wayne Boatwright
wrote:
On Sat 11 Oct 2008 04:21:02p, allanc told us...

On Oct 11, 7:03*pm, Wayne Boatwright
om
wrote:
On Sat 11 Oct 2008 03:22:40p, allanc told us...

A friend installed a Honeywell 5+2 Digital Thermostat last
weeken
d.
The inside temperature reads 68 and I am trying to check its
accurac
y.
I compared it to two free standing digital thermometers which
I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 7
1.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have an "antique" alcohol bulb thermometer (which I know to
accurate
),
mounted next to our digital thermostat. *They are spot on with
ea
ch
oth
er.

Find a callibrated analog thermometer and compare your
thermosta
t
with
that.

--
* * * * * * *Wayne Boatwright * * * * *
*
Hmmm.
Where do I find a callibrated analog thermometer that I do not
ha
ve
to
'buy' in order ro check my thermostat?

Beats me. *I don't know any place that's giving them away. *I i
nhe
rit
ed
mine, but would buy one if I felt I needed it.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 7hrs 10mins * * * * *
*******************************************
* * CONgress (n) - Opposite of PROgress * *
*******************************************- Hide quoted text -

- Show quoted text -

So, what does the average person do that buys a thermostat?

The "average" person probably doesn't give a damn about a 2-3 degree
difference.

In fact, thermostats (either analog or digital) that automatically
switch
from heating to cooling depending on demand, usually have a 2-3
degree
variance or threshhold for that changeover.

If it's that important to you, fork over the money for a calibrated
thermometer and check and calibrate your digital thermostat. *If the
mo
ney
bothers you, take the damned thing back after you've used it.

Is there a difference between the digital thermometer reading on your
thermostat and the digital setting? *They are independent of each ot
her
.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 6hrs 53mins * * * * *
*******************************************
* *Without my ignorance, your knowledge *
* * * * * would be meaningless.. * * * * *- Hide q
uot
ed text -

- Show quoted text -

Sorry, did not mean to upset you.
No, the reading and heat setting both are the same.

You didn't upset me. *If I understand correctly, one of the digital
thermometers you're testing with is matching the one on your thermostat.
*
One does not match. *That's two out of three. *I'd go with that and f
orget
about it.

As an aside, I was trying to find an accurate oven thermometer. *Lookin
g at
them in the store, there weren't any two that showed the same reading.
*
(These were bi-metal spring type thermometers.) *I bought five of them,
knowing that I might return at least four if not all of them. *When I
tested them all in the oven, I still got five different readings. *I en
ded
up taking them all back and buying a glass tube/bulb thermometer that
was
guaranteed to be accurate withint +/- 1 degree.

--
* * * * * * *Wayne Boatwright * * * * * *
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
* * * *Countdown till Veteran's Day * * *
* * * * * 4wks 2dys 6hrs 44mins * * * * *
*******************************************
* * *Confuse people ... quote from the * *
* * * * * * * wrong message. * * * * * * *- H
ide quoted text -

- Show quoted text -

I didn't explain the standalone digital thermometers properly.
Sometimes they read the same 71/71 and sometimes not 69/71.
I am looking at them right now as they are on my desk.
One is 71 and the other is about 72.

When they were on top of the thermostat - they both had higher
readings.

One of them is 'progressive' in that the possible temps are on a
horizontal display (66-86) in even digits.
The current temperature becomes visible as it changes to green.
When the temperature is 'odd' (eg 73), both 72 & 74 will be visible.
Right now, 72 is green, 74 is light brown and 76 is darker brown.
Makes no sense to me.
I don't know how else to explain the thermometer and can not think of
what the technology is called... LED possibly?
I would think that my other digital is also LED.


That sort is a heat sensitive liquid crystal, but I can't remember the name
of it. Those with associated electronics will read a discrete digit, e.g.,
72 or 73 or 74.

--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Saturday, 10(X)/11(XI)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 2dys 4hrs 30mins
*******************************************
We have met the enemy, and he is us. -
Walt Kelly

the actual temp is some thing about 68 to 71.


s


"allanc" wrote in message
...
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

On Oct 11, 6:22*pm, allanc wrote:
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

Who cares what the numbers are? The *right* temperature is the one
that makes you comfortable. Somehow the numbers seem to have become
more important than the real goal.

Different places in your home will vary more than that.

On Oct 11, 6:22 pm, allanc wrote:
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

Best is to get a few more thermometers. Then go for five out of seven
matches.

Of course, the actual temperature of the 68 and 69 may be 67.9 and 68.6
rounded off.

On Oct 11, 5:22*pm, allanc wrote:
A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have calbirated units, I must because the city can fine me for not
supplying tenents with enough heat. You need a marked calibrated glass
mercury or liqued filled thermometer, heating supply places have them
but call first or go online to like Granger. I have tried the ice
method but its not easy to get it exactly. Then I buy thermometers I
can adjust or slide up or down the thermometer in its casing. You can
then adjust the digital to match. 1 degree is important to me since I
pay thousands a month in Ng, tennants lie and say they are always
cold, I just had one couple say they were cold when it was 74 in his
apt and he had his T shirt on. They proceeded to run their electric
heater to keep the place 79, ran up a 800$ electric bill, moved and
stiffed everyone. 1 degree makes a difference in my gas bill. Stores
sell uncalibrated humidistates and thermometers.

On Oct 12, 6:24*am, wrote:
On Oct 11, 6:22*pm, allanc wrote:

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

* Who cares what the numbers are? *The *right* temperature is the one
that makes you comfortable. *Somehow the numbers seem to have become
more important than the real goal.

* Different places in your home will vary more than that.

I think that the analytical side of me is taking over.
I thought (obviously incorrectly) that a digital thermostat (or
thermometer) manufacturered fairly recently should be 'calibrated' out
of the box to about +/- .5 or so.
As a result, I was unpleasantly surprised when the thermostat and 2
digital thermometers were so far apart.

On Oct 12, 6:47*am, "Edwin Pawlowski" wrote:
On Oct 11, 6:22 pm, allanc wrote:

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

Best is to get a few more thermometers. Then go for five out of seven
matches.

Of course, the actual temperature of the 68 and 69 may be 67.9 and 68.6
rounded off.

That is how I used to shop for thermometers with red liquid years ago.

A normal topic of conversation here (southern Ontario) is 'what
setting are you using for your furnace (or air conditioner)?'
That seems kind of irrelevant now in terms of what we are all posting
about here.

On Oct 12, 7:32*am, ransley wrote:
On Oct 11, 5:22*pm, allanc wrote:

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have calbirated units, I must because the city can fine me for not
supplying tenents with enough heat. You need a marked calibrated glass
mercury or liqued filled thermometer, heating supply places have them
but call first or go online to like Granger. I have tried *the ice
method but its not easy to get it exactly. Then I buy thermometers I
can adjust or slide up or down the thermometer in its casing. You can
then adjust the digital to match. 1 degree is important to me since I
pay thousands a month in Ng, tennants lie and say they are always
cold, I just had one couple say they were cold when it was 74 in his
apt and he had his T shirt on. They proceeded to run their electric
heater to keep the place 79, ran up a 800$ electric bill, moved and
stiffed everyone. 1 degree makes a difference in my gas bill. Stores
sell uncalibrated humidistates and thermometers.


Adjust the digital?
Do you mean determine that 74 on the calibrated thermometer is 72 on
the thermostat, and then set the later to 72?
or
actually *adjust* the inside temp of the thermostat to a true 72
(using the thermometer)?

"allanc" wrote in message
...
On Oct 11, 8:00 pm, "Charlie" wrote:
"allanc" wrote in message

...

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy.
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from 69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

For openers make up a mixture of ice and water. Before the ice is all
melted
check the water temperature. 32F right?

With a normal household thermometer you won't be able to check the boiling
point, but the cold test will tell you if the glass is in the right
position
against the scale.

One of the digital thermometers ranges from about 66-86.
I do not know about the other.
Are you suggesting that I submerse the other?
I have no idea if it is waterproof.




Sorry I was thinking of a glass tube thermometer, that is, an analog device.

The trouble with digital is the rounding error. On analog you might read 70
and a half.
But one digital might sense it as 70.45 and report 70 and another might
sense 70.55 and report 71.

This is exactly why I bought a glass thermometer just to check my digital
thermostat. They are less than $5.
Then if you really want to make yourself conused, take the room temperature
in various parts of the house.

Charlie

"allanc" wrote in message
news:97bd2b34-aa8d-487f-bc60-

So, what does the average person do that buys a thermostat?

I adjust it to the point I feel cool or hot enough. I have access to some
devices that are accurate to .01 deg at work and could calibrate my
thermostat but it is not worth the trouble.

I had a new heat pump system put in about 2 years ago and found that if I
set it to 75 in the summer and 70 in the winter my wife and I are satisfied.
I don't really care how hot or cold it is showing on the readout.

On Oct 12, 8:33*am, allanc wrote:
On Oct 12, 7:32*am, ransley wrote:





On Oct 11, 5:22*pm, allanc wrote:

A friend installed a Honeywell 5+2 Digital Thermostat last weekend.
The inside temperature reads 68 and I am trying to check its accuracy..
I compared it to two free standing digital thermometers which I
balanced on top of the thermostat (at the same time).
The thermometers readings range from *69 and 71; to 71 and 71.
Any suggestions on determining the *right* temperature are
appreciated.

Thank you in advance.

I have calbirated units, I must because the city can fine me for not
supplying tenents with enough heat. You need a marked calibrated glass
mercury or liqued filled thermometer, heating supply places have them
but call first or go online to like Granger. I have tried *the ice
method but its not easy to get it exactly. Then I buy thermometers I
can adjust or slide up or down the thermometer in its casing. You can
then adjust the digital to match. 1 degree is important to me since I
pay thousands a month in Ng, tennants lie and say they are always
cold, I just had one couple say they were cold when it was 74 in his
apt and he had his T shirt on. They proceeded to run their electric
heater to keep the place 79, ran up a 800$ electric bill, moved and
stiffed everyone. 1 degree makes a difference in my gas bill. Stores
sell uncalibrated humidistates and thermometers.

Adjust the digital?
Do you mean determine that 74 on the calibrated thermometer is 72 on
the thermostat, and then set the later to 72?
or
actually *adjust* the inside temp of the thermostat to a true 72
(using the thermometer)?- Hide quoted text -

- Show quoted text -

Find true temp with a glass analog with scale printed on thermometer,
then adjust thermostat to match, there are settings if its a quality
unit, digital thermometers usualy cant be adjusted, but some can.

"Stormin Mormon" wrote in message
...
Make ice cubes out of distilled water. Make a mixture of ice cubes and
distilled liquid water, and shake it up good. When you're sure it's all
32F,
soak the thermometers. the one which reads 32F is correct. The others are
not.

Only an engineer could spend so much time on two degrees.

And even by doing all that you are only sure of one point. It could still
be way off at 70 deg.

He should just put a piece of tape over the readout and set it to the
comfort zone.

On Sun 12 Oct 2008 07:52:00a, Ralph Mowery told us...


"allanc" wrote in message
news:97bd2b34-aa8d-487f-bc60-

So, what does the average person do that buys a thermostat?

I adjust it to the point I feel cool or hot enough. I have access to
some devices that are accurate to .01 deg at work and could calibrate my
thermostat but it is not worth the trouble.

I had a new heat pump system put in about 2 years ago and found that if
I set it to 75 in the summer and 70 in the winter my wife and I are
satisfied. I don't really care how hot or cold it is showing on the
readout.

There are many people with OCDC that don't know it.

--
Wayne Boatwright
(correct the spelling of "geemail" to reply)

*******************************************
Date: Sunday, 10(X)/12(XII)/08(MMVIII)
*******************************************
Countdown till Veteran's Day
4wks 1dys 14hrs 10mins
*******************************************
I used to have an open mind but my
brains kept falling out.

"Ralph Mowery" wrote in message
m...

"allanc" wrote in message
news:97bd2b34-aa8d-487f-bc60-

So, what does the average person do that buys a thermostat?

I adjust it to the point I feel cool or hot enough. I have access to some
devices that are accurate to .01 deg at work and could calibrate my
thermostat but it is not worth the trouble.

If you have that accurate thermometer why you posting such ridiculer
question
the average person do not need that accuracy and if you really want to know
use human body thermometer isn't that easy solution.
tony



I had a new heat pump system put in about 2 years ago and found that if I
set it to 75 in the summer and 70 in the winter my wife and I are
satisfied. I don't really care how hot or cold it is showing on the
readout.

allanc writes:

Find a callibrated analog thermometer and compare your thermostat with
that.

Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

What's wrong with buying a thermometer?

In general, if you want to measure something, you need some sort of
measuring equipment. You have a few options:
1. Buy one, new or used.
2. Pay someone else who has one to make the measurement.
3. Find someone who has the tool but will make the measurement for free.
4. Do without.

For this particular application, you could probably use an electronic
digital cooking thermometer. I've seen them for less than $10, and they
read to a fraction of a degreee. They're probably not *accurate* to a
fraction of a degree, but you can check their calibration yourself and
compensate for any error. A mixture of ice and water in a vacuum flask,
well stirred, is zero degrees C. Water boiling well at sea level is 100
degrees C (and if you're not at sea level, there are tables that will
tell you how much the boiling point is reduced by altitude).

Dave

"Stormin Mormon" writes:
Total submersion is the only accurate test.

Only for thermometers that are intended to be used submerged. I have a
number of glass lab thermometers (mercury and alcohol) and at least
half of them have a line on the body to mark how far they are supposed
to be submerged. The part above that is expected to be in air.

In addition, many bimetal dial thermometers are not waterproof and will
be ruined if you submerge them. The bimetal element is only in the
lower inch or so of the hollow steel shaft, and that's all that needs
to be submerged.

Then there are electronic thermometers that are not waterproof and will
be ruined even faster when submerged. In these, the measuring element
is a small thermistor bead, and it's at the end of the metal shaft.

Dave

One of the digital thermometers ranges from about 66-86.

Does it have patches that change colour to indicate temperature? If so,
that's an LCD thermometer, not an electronic digital thermometer, and
unlikely to be very accurate.

Sorry I was thinking of a glass tube thermometer, that is, an analog device.

The trouble with digital is the rounding error. On analog you might read 70
and a half.
But one digital might sense it as 70.45 and report 70 and another might
sense 70.55 and report 71.

More likely, the digital thermometers will display fractional degrees.
So the one will report 70.5 and the other will report 70.6. It probably
won't be *accurate* to 1/10 degree, but have enough precision that you
don't have to worry about roundoff error.

This is exactly why I bought a glass thermometer just to check my digital
thermostat. They are less than $5.

Analog glass thermometers have infinite measurement precision (you can
use a magnifier to resolve fractions of one scale marking), but their
accuracy is not infinite, and depends on manufacturing accuracy. There
are accurate and inaccurate digitals, accurate and inaccurate analog
thermometers.

Dave

On Oct 14, 12:29*pm, (Dave Martindale) wrote:
One of the digital thermometers ranges from about 66-86.

Does it have patches that change colour to indicate temperature? *If so,
that's an LCD thermometer, not an electronic digital thermometer, and
unlikely to be very accurate.

Sorry I was thinking of a glass tube thermometer, that is, an analog device.
The trouble with digital is *the rounding error. On analog you might read 70
and a half.
But one digital might sense it as 70.45 and report 70 and another might
sense 70.55 and report 71.

More likely, the digital thermometers will display fractional degrees.
So the one will report 70.5 and the other will report 70.6. *It probably
won't be *accurate* to 1/10 degree, but have enough precision that you
don't have to worry about roundoff error.

This is exactly why I bought a glass thermometer just *to check my digital
thermostat. They are less than $5.

Analog glass thermometers have infinite measurement precision (you can
use a magnifier to resolve fractions of one scale marking), but their
accuracy is not infinite, and depends on manufacturing accuracy. *There
are accurate and inaccurate digitals, accurate and inaccurate analog
thermometers.

* * * * Dave

Yes, the patches change colour and I tossed it a couple of days ago.

On Oct 14, 12:15*pm, (Dave Martindale) wrote:
allanc writes:
Find a callibrated analog thermometer and compare your thermostat with
that.
Hmmm.
Where do I find a callibrated analog thermometer that I do not have to
'buy' in order ro check my thermostat?

What's wrong with buying a thermometer?

In general, if you want to measure something, you need some sort of
measuring equipment. *You have a few options:
1. Buy one, new or used.
2. Pay someone else who has one to make the measurement.
3. Find someone who has the tool but will make the measurement for free.
4. Do without.

For this particular application, you could probably use an electronic
digital cooking thermometer. *I've seen them for less than $10, and they
read to a fraction of a degreee. *They're probably not *accurate* to a
fraction of a degree, but you can check their calibration yourself and
compensate for any error. *A mixture of ice and water in a vacuum flask,
well stirred, is zero degrees C. *Water boiling well at sea level is 100
degrees C (and if you're not at sea level, there are tables that will
tell you how much the boiling point is reduced by altitude).

* * * * Dave

Do you mean that the digital cooking thermometer has some sort of
built in calibrator
*or* I have to obtain one to calibrate the thermometer?
If the later, then why not just calibrate the thermostat with the
calibrator that I obtain?
Haven't you introduced an extra step?