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Hello and welcome to How I Built this Lab. I'm Guy Ross.

So the ground under your feet could cool and heat your home for a relatively low cost.

And it doesn't really matter where you live because as you will hear in this conversation,

once you dig about two to five hundred feet deep, in most places around the world, the earth is cool,

but also capable of providing heat.

How this works, I will let Kathy Hanoon explain in a moment.

Kathy is the founder of a company called Dandelion Energy.

...