版上有人用过Geothermal吗?# LivingL*s2012-03-13 07:031 楼听说打洞的深度取决于lot的大小,如果3000尺的房子,1 acre的地,初始安装大概多少钱?另外装了Geothermal以后是不是Cooling System还要另外单独装一个?
m*y2012-03-13 07:032 楼Which zone? I heard it's not working well in Zone 9+. Actually, zone6- ispreferrable.