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 * * * * *
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* * 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