Air Ventilation Via Passive Geothermal Convection?
First you need to insulate your home and then you then you need to poke holes so your home can breathe. The bad part is that you spent much effort to heat (or cool) the air and then you trade it for a temperature that you dislike and start over again. You can use a heat exchanger to have the exiting air moderate the incoming air but your incoming air is still starting at an extreme temperature (very cold or very hot). I wonder if underground soil is sufficiently aerated to combine geothermal and French drain techniques to gain 50-degree fresh air year-round: Run a hose from the home, below the frost line, perforated, covered in mesh, run through gravel, and then back home. Perhaps that would provide enough heating-ventilation-air-conditioning (HVAC) via passive convention (or kickstarted by a small fan). One source suggested this but I wonder about water or mildew problems. Perhaps a solid air-intake tube run below the frost line to the surface would suffice as a passive heat exchanger to moderate incoming air.
Feel free to drop a comment here to share knowledge on this or any other topic.
5 Comments:
Are there any examples ?
Are there any real world examples ?
Jmy,
Hello. It's something like this:
http://en.wikipedia.org/wiki/Ground-coupled_heat_exchanger
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Good information about ventilation system, Using good quality bathroom ventilation fans ensures that you get a bathroom that is free from moisture and stinky smells. Thanks for sharing this.
Air ventilation
OK - I have been researching geo-thermal ventilation systems - quite a few out there. JUst google it. Two to consider Rehau makes proper underground ducts. Check out http://www.ventilation-system.com/cat/468/ for another. The idea is to change the temperature of air by doing a heat exchange with the earth. Easy to understand, easy to do.
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