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Old 01-05-11, 08:32 AM   #11
Daox
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I don't think that would be very efficient.

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Old 01-05-11, 12:26 PM   #12
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Quote:
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Can I ship you all my excess humidity? I'm this close to acquiring a couple DEhumidifiers for my house.
I picked up a new one last summer, for my basement. Which gets pretty damp during the summer time.

It's a pretty good place to install a heatpump water heater.
Since it can dehumidify the air while making hotwater.

I'm going to look into one of those Add-on ASHP hotwater units..
The price will have to be right, since during the winter,
it's so cold down there... I'll have to use oil..
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Old 01-06-11, 08:11 AM   #13
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hmmmm... very good point about the heat pump water heaters. I hadn't thought about them being dehumidifiers as well, but of course they would be.
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Old 01-06-11, 08:40 AM   #14
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Would they really dehumidify? Would the external heat exchanger get cold enough to condense water? Patrick?
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Old 01-06-11, 08:42 AM   #15
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All of the ASHP for hot water I've seen come with drain hoses..

Last edited by Xringer; 01-14-11 at 07:52 AM.. Reason: making it readable
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Old 01-13-11, 11:41 PM   #16
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Default Low Tech Humidifier...

I keep running into references to humidity control through the use of "Clay Plaster".

This opens up all kinds of possibilities, since:
  • The embodied energy is very low
  • It uses no power in operation
  • It is a naturally occuring substance
  • Zero toxic out-gassing
  • If you are resourceful, it could be gotten for free
  • It is beautiful


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Old 01-14-11, 07:57 AM   #17
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How is Clay as an insulator?
It seems like it could be holding and/or releasing moisture into the air..
That seems like it would be pumping heat in and out of the walls..
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Old 01-14-11, 11:32 AM   #18
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Quote:
Originally Posted by Xringer View Post
How is Clay as an insulator?
Who said anything about insulator?

Quote:
Originally Posted by Xringer View Post
It seems like it could be holding and/or releasing moisture into the air..
That's the idea here...

Quote:
Originally Posted by Xringer View Post
That seems like it would be pumping heat in and out of the walls..
I didn't spell it out, but the idea is predicated on having well insulated walls and a moisture barrier between the insulated walls and the clay plaster.

And yes, whenever moisture is evaporated, it absorbs heat (that's why your heat pump electric use has been ticking up since your new humidifier) and when it condenses, it releases heat.

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Old 01-14-11, 11:41 AM   #19
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Quote:
Originally Posted by Xringer View Post
How is Clay as an insulator?
Who said anything about insulator?

Quote:
Originally Posted by Xringer View Post
It seems like it could be holding and/or releasing moisture into the air..
That's the idea here...

Quote:
Originally Posted by Xringer View Post
That seems like it would be pumping heat in and out of the walls..
I didn't spell it out, but the idea is predicated on having well insulated walls and a moisture barrier between the insulated walls and the clay plaster.

And yes, whenever moisture is evaporated, it absorbs heat (that's why your heat pump electric use has been ticking up since your new humidifier) and when it condenses, it releases heat.

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Old 01-14-11, 12:34 PM   #20
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Maybe I should have said heat conductor. If it's a moist coating on the walls,
it seems like it might conduct heat into the wall-board and the 2x4 studs inside.

I'm not sure what would happen. But, I tend to think making a wall thicker is going to give it a better R factor.

If I had Clay on the walls, it seems like I would still need to 'water' it.
Just like I'm watering the air right now.

I guess the idea is to have this reservoir of water sitting in the walls, ready to come out,
when things starting to get dry..?. I guess it's mostly a stabilizer..


Hey, with all that water, it's going to be a Thermomass!
It's going to hold heat from during the warm part of the day..
A temperature stabilizer too..
Might not be a bad idea for a passive solar home in NE.. I'm starting to like it!

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