Re: thermometers?

[Charles Sullivan <cwsulliv@xxxxxxxxxxxx>]

On Wed, 16 Sep 2009 10:04:29 -0700, J Miller wrote:

> Joe Pfeiffer wrote:
>> Charles Sullivan <cwsulliv@xxxxxxxxxxxx> writes:
>>
>>> On Mon, 14 Sep 2009 16:38:20 -0600, Joe Pfeiffer wrote:
>>>> Thanks -- that's very helpful!  But they don't seem to have anything
>>>> that looks like a permanent installation...
>>> I'm not sure what you mean by "permanent installation".
>>
>> I'm thinking in terms of an in-wall installation -- the best of all
>> possible worlds would be if I could replace an existing junction box
>> with a 2-gang, put the sensor in the new part, and power it off the AC.
>
> One thing about in-wall is making sure you get a real reading.  It needs
> to have proper air flow.  The wall itself could be conducting heat/cold
> from another spot (the room on the other side of the wall, for example)
> or a close duct.
>
> You'll notice on a thermostat it is mounted off the wall with lots of
> vents.

Right.  Another thing to avoid if possible is mounting on an outside
wall.  The house insulation may be good but it's never perfect.