Humidity Detecting Switch

[GregS]

In article <87f14aF1dpU1@mid.individual.net>, Tony <tony.miklos@gmail.com> wrote:

vjp2.at@at.BioStrategist.dot.dot.com wrote:
I've seen $250 humidity detecting fans (Broan?). I have a timer on my bath
fans, and motion detectors on my hallway lights (installed when my dad was
dying), so I can't believe they can't make a wall switch which detects
humidity. ANyone see one? Couldn't find one with google. Besides the
bathrooms, I'd wonder if I can't have one for the house when I'm away and
don't want to have the heat or cool on just to prevent mildew. I hadn't used
cooling in years and the upstairs duct perspired onto my ceiling.

I bought 2 army surplus one years ago, high quality stuff! I used it to
totally rebuild a donut proofing box because none of the original parts
were available. (the donut proofing box circulates warm humid air
around the raw donuts so they rise without drying out). A fan, a
stainless steel container like in a salad bar with a generic water
heating element installed in it, the humidistat, and a larger container
of water to siphon water in the small "boiler". Sorry I can't recall
where I bought them.

Yes I probably bought the same ones years ago. Wrapped in sealed
bags. I just tried using one in my bathroom.
They are not reliable near the extremes. You cannot set it to 80 % hummidity.
The horse hair mechanism is too critical up there. I was able to set it
to about 60%, and one rainy day it just came on. i mounted it uo in the air
box which I had taken out the fan and used an in-line fan for noise control.Its
works OK with the Dew Stop condensation sensor,
but I really need more CFM.
Most mechanical sensors have the wrong connection for fan use.

greg

 

[Grumpy]

In my opinion you are all wet, at temperature you have outline Humidistat
would be useless unless you have Dehumidifier run at all times,
and at 57 Deg. F not likely that you will get below 50% rh
so all you doing is wasting your time but lots luck.

"Dave Plowman (News)" <dave@davenoise.co.uk> wrote in message
news:512533a0f9dave@davenoise.co.uk...

In article <huql06$s0r$1@reader1.panix.com>,
vjp2.at@at.BioStrategist.dot.dot.com> wrote:
I've seen $250 humidity detecting fans (Broan?). I have a timer on my
bath fans, and motion detectors on my hallway lights (installed when my
dad was dying), so I can't believe they can't make a wall switch which
detects humidity. ANyone see one? Couldn't find one with google.
Besides the bathrooms, I'd wonder if I can't have one for the house when
I'm away and don't want to have the heat or cool on just to prevent
mildew. I hadn't used cooling in years and the upstairs duct perspired
onto my ceiling.

Google on Humidistat.

--
*Change is inevitable, except from a vending machine*

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

 

[Jerry Avins]

On 6/11/2010 4:01 PM, GregS wrote:

...

Most mechanical sensors have the wrong connection for fan use.

I posted a link to one with a relay that sells for $40. Why won't that do?

Jerry
--
Engineering is the art of making what you want from things you can get.
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[Frank L]

On Jun 10, 8:15 am, vjp2...@at.BioStrategist.dot.dot.com wrote:

I've seen $250 humidity detecting fans (Broan?). I have a timer on my bath
fans, and motion detectors on my hallway lights (installed when my dad was

snip.

I have seen a humidty switch with a central AC theromstat. It was in
an older home. I am not sure if they still offer them. It was either
Broan or Honeywell.

Frank Lardino