Yes, we do open the window when the A/C is not in use. But if it's cool
enough to open the window the humidity is usually fairly low as well.
Chuck Norcutt
C.H.Ling wrote:
> Just one point about the dry cabinet for camera, you need to control the
> humidity, too low humidity is no good, 40-55% could be a good range.
>
> One interesting thing about your temperature/humidity controlled house, do
> you ever open the window? We open the window whenever air conditioner is not
> in use. It account for 50% of the time in summer and 100% of the time for
> the rest of the year. When we open the windows there is no way to control
> the humidity anymore.
>
> On the other hand there are quite some difference in humidity inside the
> house even on the same area, it depends on which direction the windows face.
> The flat we previously lived was having much higher (10%+) humidity then our
> current one which is less then 100 meter away.
>
> C.H.Ling
>
>
> ----- Original Message -----
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
>
>
> Many years ago Kodak used to publish plans for a tropical dry cabinet.
> It was simply a small wooden cabinet with a low wattage light bulb
> installed in the bottom. Gun owners face the same sort of problem with
> rust as we do from fungus. If you'd like to make your own dry cabinet
> you can get various small electrical resistance heaters designed for gun
> cabinets for about $20 (or $35 if you buy in the wrong place :-))
> Goldenrod is a popular name:
> <http://www.midwayusa.com/viewproduct/?productnumber=614184&utm_source=froogle&utm_medium=free&utm_campaign=10615>
> Browning also makes one which is flexible to fit in smaller spaces and
> also has an LED to indicate if the unit is turned on.
> <http://www.amazon.com/Browning-Safe-Accessories-Everydry-Dehumidifier/dp/B0013RBD5K/ref=sr_1_2?ie=UTF8&s=hi&qid=1275740513&sr=8-2>
>
> The Goldenrod is available in two lengths; 12" and 8 watts to protect up
> to 100 cubic feet and 18" and 12 watts for up to 200 cubic feet.
> Several years ago I was going to build a dry cabinet using a 13 watt
> compact fluorescent bulb as the heater but abandoned it as unnecessary
> since I've never had a fungus problem in my air conditioned houses.
>
> In my Florida place (and something I've not seen elsewhere) the air
> conditioner is controlled both by temperature and humidity in what
> appears to be a sort of AND circuit. It appears that power to the
> thermostat passes first through a separate humidistat. Regardless of
> temperature the air conditioner will not turn on unless the relative
> humidity is higher than the setting on the humidistat dial or unless the
> humidistat's dial is set to "off". This is a good arrangement for
> snowbirds where we're not present during the summer and don't care what
> the temperature is as long as the humidity is not high enough to cause
> damage. But for normal summer time living I'd like to have an OR
> arrangement with the humidistat. If the temperature is above a certain
> point OR the humidity is above a certain point (regardless of
> temperature) turn on the air. To the best of my knowledge no such
> household control exists. It's a bit frustrating since right next to my
> heating/cooling thermostat is a humidistat. However, the humidistat
> only controls the humidifier on the furnace. It would be nice to let it
> work with the A/C as well.
>
> Chuck Norcutt
>
>
--
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