Chago- forgive my manners... what is more important is congratulations!!!!
I swear that the best word in the history of the world is "Daddy"
Geothermal for the tank/system only would be considerably less. At least mine was. Instead of lots & lots of trench, or many deep holes, a few 10-12" holes should do the trick. Also, the gt for homes includes the heating aspect.... for a tank, chilling only does the trick.
Factoring in a cost of zero for the trench that I have (sprinkler guys- an additional $200), I am into it for about $500. That includes the metal and pvc for the heat exchangers, 200' of poly pipe, and $50 value for the used Iwaki I already had. Using the lake provides an infinite source, unlike holes in the earth which need time to "replenish", but still vary in the moisture content around them. Getting the insight of a someone trained in gt would decidedly help. As would a skilled driller (to avoid wrecking the garden!!!)
edit: oh yeah... the typical home gt system uses LOTS of looped poly pipe for the in ground exch. A metal one would work just fine for this use.
D
I swear that the best word in the history of the world is "Daddy"

Geothermal for the tank/system only would be considerably less. At least mine was. Instead of lots & lots of trench, or many deep holes, a few 10-12" holes should do the trick. Also, the gt for homes includes the heating aspect.... for a tank, chilling only does the trick.
Factoring in a cost of zero for the trench that I have (sprinkler guys- an additional $200), I am into it for about $500. That includes the metal and pvc for the heat exchangers, 200' of poly pipe, and $50 value for the used Iwaki I already had. Using the lake provides an infinite source, unlike holes in the earth which need time to "replenish", but still vary in the moisture content around them. Getting the insight of a someone trained in gt would decidedly help. As would a skilled driller (to avoid wrecking the garden!!!)
edit: oh yeah... the typical home gt system uses LOTS of looped poly pipe for the in ground exch. A metal one would work just fine for this use.
D