54. Earth Tubes are cool & they can heat too!

Q: How long is this episode of Green Energy Futures?

This episode is 3 minutes long.

Q: When was this Green Energy Futures episode published?

This episode was published on November 21, 2013.

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Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.

What this episode covers

The earth tube is a humble, simple invention. It pre-heats or pre-cools the air coming into a building by running it through an underground pipe. If you go a meter or two underground the earth is a constant 4-6 degrees. By taking advantage of that free heat you can can save a ton of money. We explore a couple earth tube projects in this episode of CKUA's Green Energy Futures.

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