Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

temperature sensors

7 views
Skip to first unread message

Sam Takoy

unread,
Jan 6, 2010, 3:26:43 PM1/6/10
to
Hi,

I'm on a quest against my ugly thermostat that controls heat and A/C. Is
there a solution that includes an elegant temperature sensor that sends
the information to the thermostat that's hidden in a closet?

Many thanks in advance,

Sam

Jim Yanik

unread,
Jan 6, 2010, 3:56:09 PM1/6/10
to
Sam Takoy <samt...@yahoo.com> wrote in news:hi2rm2$926$2...@news.eternal-
september.org:

I suppose you could modify a digital thermostat;
unsolder the thermistor temp sensor and splice in extension wiring,install
the thermostat in your closet and run the thermistor wiring to where you
want to sense the room temp. I don't think yo want to use more than [SWAG]
10 feet of extension wire,or you'd pick up noise.
The thermistor is a tiny little bead with two wires coning out of it,about
2mm in diameter.You could hide that almost anywhere,even put it in the edge
of a picture frame. But it needs access to airflow.

--
Jim Yanik
jyanik
at
localnet
dot com

Jon Danniken

unread,
Jan 6, 2010, 4:34:03 PM1/6/10
to
Jim Yanik wrote:
> Sam Takoy <samt...@yahoo.com> wrote in
> news:hi2rm2$926$2...@news.eternal- september.org:
>
>> Hi,
>>
>> I'm on a quest against my ugly thermostat that controls heat and
>> A/C. Is there a solution that includes an elegant temperature sensor
>> that sends the information to the thermostat that's hidden in a
>> closet?
>>
>> Many thanks in advance,
>>
>> Sam
>>
>
> I suppose you could modify a digital thermostat;
> unsolder the thermistor temp sensor and splice in extension
> wiring,install the thermostat in your closet and run the thermistor
> wiring to where you want to sense the room temp. I don't think yo
> want to use more than [SWAG] 10 feet of extension wire,or you'd pick
> up noise.

It's just a resistor; a couple dozen feet of wire shouldn't affect anything.

Jon


RBM

unread,
Jan 6, 2010, 5:15:25 PM1/6/10
to

"Sam Takoy" <samt...@yahoo.com> wrote in message
news:hi2rm2$926$2...@news.eternal-september.org...

You can get remote indoor temperature sensors for Honeywell Vision Pro
thermostats


Tony Hwang

unread,
Jan 6, 2010, 7:57:08 PM1/6/10
to
Hi,
I wonder why you are hiding the 'stat in a closet? If tampering is an
issue you can have a lockable enclosure for the 'stat.

Tony Hwang

unread,
Jan 6, 2010, 8:00:05 PM1/6/10
to
Hi,
What if it is SMT based board? Being ATD circuit, if extra length of
wire is involved, temperature calibration may go off. Noise on a low
voltage analog circuit? What kinda noise please?

cl...@snyder.on.ca

unread,
Jan 6, 2010, 8:03:49 PM1/6/10
to
On Wed, 06 Jan 2010 17:57:08 -0700, Tony Hwang <drag...@shaw.ca>
wrote:


He called it "ugly"

Tony Hwang

unread,
Jan 6, 2010, 8:18:54 PM1/6/10
to
Tony Hwang wrote:
> Jim Yanik wrote:
>> Sam Takoy<samt...@yahoo.com> wrote in news:hi2rm2$926$2...@news.eternal-
>> september.org:
>>
>>> Hi,
>>>
>>> I'm on a quest against my ugly thermostat that controls heat and A/C. Is
>>> there a solution that includes an elegant temperature sensor that sends
>>> the information to the thermostat that's hidden in a closet?
>>>ㅗㅑ,

>>> Many thanks in advance,
>>>
>>> Sam
>>>
>>
>> I suppose you could modify a digital thermostat;
>> unsolder the thermistor temp sensor and splice in extension
>> wiring,install
>> the thermostat in your closet and run the thermistor wiring to where you
>> want to sense the room temp. I don't think yo want to use more than
>> [SWAG]
>> 10 feet of extension wire,or you'd pick up noise.
>> The thermistor is a tiny little bead with two wires coning out of
>> it,about
>> 2mm in diameter.You could hide that almost anywhere,even put it in the
>> edge
>> of a picture frame. But it needs access to airflow.
>>
> Hi,
> What if it is SMT based board? Being ATD circuit, if extra length of
> wire is involved, temperature calibration may go off. Noise on a low
> voltage analog circuit? What kinda noise please?
Hi,
If worry about inteference to the wires then use twited pair shielded
wires grounding it only at one end. That'll do it.

Tony Hwang

unread,
Jan 6, 2010, 8:31:31 PM1/6/10
to
Hi,
If noise is a conern use shielded twisted pair wire and ground the
shield at one end only.

ransley

unread,
Jan 6, 2010, 9:14:47 PM1/6/10
to

Years ago I bought a Thermostat with about 50ft of wire and a temp
sensor attached for use in an apartment building, the sensor was about
1/4" x 1". Google for, wired remote sensor thermostats. The sensor
also had a metal clip like a paper clip to be hung like under a
picture frame or mirror. There are wireless units but the modules are
big, maybe 2x2x1 , but iy could go in a fake planter on a desk, but
you need airflow. Wireless are made by name brands like Honywell,
White Rogers I believe.Go with a name brand not HD types.

Ed Pawlowski

unread,
Jan 6, 2010, 11:00:20 PM1/6/10
to

Are you married? If so, just mount a switch in the closet. Need heat? Have
wife flip switch on. Warm enough? Have wife turn heat off. You can also
mount the switch near the fridge so she can grab a beer for you at the same
time.


0 new messages