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divDevGuy t1_iwl00ex wrote

Reply to comment by TotallyInOverMyHead in German Cold War Nuclear Fallout Bunker For Sale On eBay For EUR 1.6 Million by ananovanews

> Up until as late as 1989 you could get a tax credit if you included one in your homes build. Some even got straight up subsidized.

With climate change, building underground may still have a financial benefit even without a tax credit or subsidies. It'll cost more to build, but operational costs would be lower if build properly.

You don't have to go that deep to get fairly consistent year round temperatures. Where I'm at, a horizontal geothermal HVAC loop gets installed around 6-8 feet deep and stays at about 50-55°F degrees year round.

Then again, with walls 3 meters (10 feet) thick, it's already got a fairly heafty thermal mass to moderate temperatures even if it was entirely above ground.

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TotallyInOverMyHead t1_iwlcac6 wrote

one is a bunker, to hide in during a nuklear exchange - the other is a home to use most of life.

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Dry_Damp t1_iwlfcj5 wrote

3m thick walls for a geothermal HVAC loop??

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atomicwrites t1_iwlukf1 wrote

No, for a nuclear bunker.

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Dry_Damp t1_iwlv6jv wrote

Oh okay, then I misread the other comment. Thanks. We just got a geothermal HVAC installed and it definitely doesn’t have 3m thick walls. Thought we might have been ripped off for a split second.

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MNGirlinKY t1_ix3akl4 wrote

My aunts home was built underground way up north and it was very efficient

I don’t know if they ever finished it ( their plan) I was 7 when I saw it last

It’s not for me as am adult but thought it was cool as a kid

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