Weekly buildable plans for the shelter you dig yourself: airflow that actually moves, drainage, and a soil test you can run on your own ground in an afternoon.
Which vent goes low, which goes high, and how to check it.
Hard rock, high water table, or hillside: find out before the first shovel.
How to ask which classification your dome fits, instead of leaving without an answer.
No smoke: the full guide, the exact steps, the fix — every week.
Read the full issue →Warm air rises and leaves, so cool air has to be drawn in at floor level. We walk the intake, the outlet, and a candle check you can run before your family ever goes down.
You're not paying for 'content' (that's everywhere and half-wrong). You're paying for the tested way, the exact steps, every week — and for a real answer when you get stuck.
2,500+ preparedness folks
already get it every week.
“I had the airflow backwards in my head, figured the intake belonged up top. The weekly letter laid out why the cool air comes in low at the floor, and I redrew my vent runs that same evening.”
Earl R. · 71 · Ohio
“Damp was my worry more than anything. Between the moisture notes and the airflow section, I finally understand why the air down there sat so still and smelled the way it did, and what to change first.”
Margaret T. · 66 · Queensland
Testimonials are illustrative composites, not quotes from named individuals. Results vary with your effort.
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Often yes, as a bermed build rather than a buried one. The weekly letter covers berming over rock, drainage below the shell, and keeping the air path working when you cannot go deep.
No. Measurements, mixes, and work order are written for one owner with hand tools and a helper, plus notes on where renting a machine for a weekend actually pays off.
Bits of it, scattered and half-wrong. Here it's tested, start to finish, with the exact steps — and a fresh one every week.
No. Plain steps, big print, one a week. Nothing fancy, the way it's always been done.
Straight to your inbox every week. Join once and it just shows up — no app, no fuss.
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