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Almost FREE Cooling???

tlotman's picture

Almost FREE Cooling??? (post #216227)

Since the ground, about 6 ft down, stays a consistent temperature of 65° F, why couldn't a trench be dug in a snake formation where piping about 3-6" diameter be laid so that outside air can be drawn through the tubing and piped into the house to keep it cool?

The piping would need a drip system to handle the condensation, maybe use drain pipe (with the holes in the bottom).

Thomas Jefferson's house had a coupula that naturally drew air out the top and pulling air in through the windows. In the above design, rather than windows, the piping system would be used.

Wouldn't this be more economical that a HVAC system?

Could this work?

What problems would be anticipated?

It would take so much large (post #216227, reply #1 of 10)

It would take so much large pipe to move enough air to do any good at all that it wouldn't be cost effective plus the cost of running large dehumidifers to get the moisture out.  There are geothermal AC system that work on the same principle but they are not economical.

Florida Licensed Building Contractor, 50 years experience in commercial remodeling, new homes, home remodeling and repairs and all types building maintenance.

Blanket statements about (post #216227, reply #3 of 10)

Blanket statements about GeoThermal are completely off base.  With access to a pond or lake, geothermanl is CHEAP and where ever lot sizes are large and bedrock is deep, ground loops arent that expensive.  You get the bonus of free hot water in the summer if you set it up right and your heating bills are low all winter.

Here we go down the rabbit (post #216227, reply #4 of 10)

Here we go down the rabbit hole!

Even if that were true how many people have access to a private pond or lake?  How many people have a lot large enough and without bedrock,  1%, 1/2 of 1%? So, we can throw a local water source out the door. For the rest of us geothermal means a 3' wide, 5' deep and 150' long trench with 750 ' of pipe in it for each ton of AC. Trenches need to be 10' apart.  How do you do that on a typical zero lot line lot?  There is no magic trench maker and no free pumps.  Down here in south Florida a 3 ton geo system starts at $25,000 and gos up rapidly. My brother priced one at his house that was over $60,000.00. Where is it cheap?

Florida Licensed Building Contractor, 50 years experience in commercial remodeling, new homes, home remodeling and repairs and all types building maintenance.

I guess I forgot that the (post #216227, reply #5 of 10)

I guess I forgot that the only places they build houses is on the coasts...Florida isn’t the center of the universe. Try getting out of your bubble sometime.

Geothermal is certainly done, (post #216227, reply #6 of 10)

Geothermal is certainly done, and is nothing new or revolutionary.  As folks have stated, it depends a lot on climate, availability of land, and details about the ground composition and geography.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

Wow, like I said, right down (post #216227, reply #9 of 10)

Wow, like I said, right down the rabbit hole with ad hominems. 

Do you have anything constructive to add? You have geothermal at your house? You've installled a bunch of systems? Have you ever priced a system? You're sure that the only experience I have is in Florida, which is not all coast by the way?Do you have any responses to any of my points about geothermal?

Florida Licensed Building Contractor, 50 years experience in commercial remodeling, new homes, home remodeling and repairs and all types building maintenance.

There is no reason why (post #216227, reply #2 of 10)

There is no reason why moisture would be introduced, if the ducting is tight.  If you draw in outside air, that of course would contain moisture, but if you recirculate there would be none added.

You would need some sort of small sump pump (ie, a "condensate pump") to draw condensation out of the duct, since moisture from breathing and cooking and the like will still condense.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

So which is it?   "There (post #216227, reply #7 of 10)

So which is it?

 

"There is no reason why moisture would be introduced"

 

or

"You would need some sort of small sump pump (ie, a "condensate pump") to draw condensation out of the duct, since moisture from breathing and cooking and the like will still condense"

 

Condensation is moisture.

Florida Licensed Building Contractor, 50 years experience in commercial remodeling, new homes, home remodeling and repairs and all types building maintenance.

Moisture isn't introduced by (post #216227, reply #8 of 10)

Moisture isn't introduced by the cooling, it was there all along.  But when the air gets below the dew point it condenses.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

If this were a TV show (post #216227, reply #10 of 10)

If this were a TV show everyone would be looking at you and pounding their heads against the wall while the audience howled with laughter.

Florida Licensed Building Contractor, 50 years experience in commercial remodeling, new homes, home remodeling and repairs and all types building maintenance.