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Old 05-09-2008, 06:52 AM
427king 427king is offline
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Default GEOTHERMAL HEAT/AC

Anyone have this type of system in thier garage or know much about it? Thanks
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Old 05-09-2008, 08:52 AM
BBIGG BLOCK 396 BBIGG BLOCK 396 is offline
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Default Re: GEOTHERMAL HEAT/AC

King I have a friend that has something similar to geothermal he is using in his barn and it works pretty good.It does not work as well as a conventional A/C and Heat system but it maintains a very comfortable temprature.
Geothermal systems us a liquid pumped through a series of underground pipes or lines, the earth stays a costant temprature + or - a few degrees at certain depths underground.
Thus the liquid is made to be this temprature then runs to an exchanger system that removes the cool or heat from the liquid and uses that to heat /cool your shop,home,barn etc. The system my friend designed uses larger pipes and even a large buried tank and they are all hooked together by a piping system that runs to a large blower.
The air is circulated from the tanks and pipes underground and blown through a duct type system in the top of the barn similar to a central A/C duct system. The cool and warm air is spread throughout the barn maintianing a pretty comfortable level.He also uses solar panels and batteries to run the pump or blower.It is a lot cheaper than conventional A/C and the source is naturaly renewable.It does not cool or heat as well as a central A/C and heat system but can regulate it to be very comfortable.
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Old 05-09-2008, 03:59 PM
joey joey is offline
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Default Re: GEOTHERMAL HEAT/AC

I am partially retired(I do a few jobs for friends ) from the heat and ac buisness and you are partially right in your description, A geothermal system can work as good if not better than convential hvac system it all depends on the location ,type of geoth system and equipment being used and what your goal to accomplish with the system is. Finally something I know a lot more about than king does
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Old 05-09-2008, 05:50 PM
Chevy454 Chevy454 is offline
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Default Re: GEOTHERMAL HEAT/AC

[ QUOTE ]
A geothermal system can work as good if not better than convential hvac system it all depends on the location

[/ QUOTE ]
Ditto...I have it in my house (4200 sq/ft), and LOVE it...Mo has it in his house, as well as his bowling alley (7200 sq/ft w/16? ft sidewalls) and in the dead of summer while running 8 ginormous pin-setter machines and everything else in the alley I think he said his highest electric bill was well *under* $200...and those pin-setters create a LOT of heat, and Mo likes it COOOOLD in the summer! The cool thing about them is that you can have multiple zones w/multiple thermostats in different parts of the house...I cheaped out (addnl $3k) and didn't get that option, but we now wish we had...anyway, I would recommend the system.

Another option is a heat pump w/backup (uses same unit), which we have at the shop (6k sq/ft w/ 14 ft sidewalls)...they shine in the summer months, but with colder winters like you guys have, the LPG vs electric backup would probably be better.
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Old 05-09-2008, 06:04 PM
Hylton Hylton is offline
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Default Re: GEOTHERMAL HEAT/AC

What did your set-up in your house cost you Rob? I am building this fall and am considering this option as well.
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Old 05-09-2008, 06:12 PM
Chevy454 Chevy454 is offline
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Default Re: GEOTHERMAL HEAT/AC

I believe it was $13k, which included digging/backfilling the 2k feet of lines...and as I said above, the extra zones option was gonna be $3k...but we shoulda done it. Check with your electric company, as they almost always (around here anyways) give a rebate if you go with geothermal...ours stopped a couple months prior to us buying our system, because they started on a new power plant and they had to finance it!

We have a seperate meter on our geo unit...I should check it and see how many kw we've used in a little under a year...
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Old 05-10-2008, 04:45 PM
L72COPO L72COPO is offline
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Default Re: GEOTHERMAL HEAT/AC

My system for the house cost $17,000 (before rebate), three years ago. 2,400 sq ft with a 2,400 sq ft basement. Located in central Illinois. It is classed as a 3 ton system with three 125 foot wells. We are on a seperate meter for the Geo @ 5 cents KWH vs 9.5 cents KWH for other electricity. Bids for a conventional heat pump system were $13,000 and we got a $2,000 rebate from the power company for going GEO. Really a no brainer for me. My cost was for new construction so it included all duct work etc. Your cost seem out of line.

This is our second house with this system and I would not have any other type. System was manufactured by Water Furnace and they have a WEB site with dealers listed.
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Old 05-10-2008, 04:51 PM
Hylton Hylton is offline
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Default Re: GEOTHERMAL HEAT/AC

Don - Did they run trenches or did they drill down to run the lines?
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Old 05-10-2008, 05:03 PM
L72COPO L72COPO is offline
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Default Re: GEOTHERMAL HEAT/AC

This house they were drilled straight down. Three holes 125 foot each. Ohio house they were lateral. There was not enough real estate to run laterals here.
Don
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Old 05-10-2008, 05:32 PM
@wot @wot is offline
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Default Re: GEOTHERMAL HEAT/AC

I had someone give me a price for geothermal, in CT, about 2 years ago (I have not installed a system yet}, and the cost was 45K for a 6,000 sq. ft. home. I thought it would take too long to ambertize that cost, but now, I am seriously considering it again.
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