Hi,
I recently stumbled on a nice empty house at the fringes of my city. The homeless people are generally treated like shit under capitalism.
The house had a trapdoor, to a cellar. If it had been closed, maybe with a carpet no urban explorer would find it. Now all stuff I am writing is purely hypothetical, and I don’t intend on doing any of this.
The cellar is pretty empty, It has an empty shelf, where you could store can food, a mattress is very easy to come by, batteries can provide electricity which can be swapped out every week or something like that. So a homeless person could easily live there.
The only real challenge, which could really destroy the whole operation is ventilation. The air is pretty stale, and if the trapdoor is closed I only really see one small window which is blocked by leaves. Leaving this unaddressed could be really fcking dangerous. No questions that CO2 sensors have to be installed, but that is not enough. There needs to be ventilation. But there are 2 constrains:
- it has to be quiet. Urban explorers cant hear a constant humming
- major changes can only really happen in the cellar, and shouldn’t be clearly visible to the outside.
Fortunately I can work with micro-controllers enough to do some stuff. I thought that I run 2 pipes out of the window, roughing them up and covering them with a camouflage net and then leaves (making it look like it belongs seems better but idk how). Then I put two computer fans on it, one sucking one pulling, and they run pretty quickly at the day, when no movement is detected, turn of if movement is detected and don’t run / run very slowly at night.
I have no expertise on ventilation at all, maybe someone can share their ideas and expertise, providing an alternative plan, or improving upon my ideas.
Also for which gasses should I buy sensors? Safety is important, and it is important that no mold forms (no mold formed in 20 years when the trapdoor was open and noone was in there so that’s good.)
For gasses, you should monitor co and gas, carbon dioxide alarms are uncommon outside of industries where we have a lot of carbon dioxide stored. Without a better idea of the space it’s hard to suggest a ventilation solution.
They make large diameter vent fans for buildings that are designed to run on a widely varied DC source like a solar panel, those can be really useful.
As the other reply says, you need a large volume of air slowly so a large diameter slower fan is good. You can get flexible duct work anywhere they sell construction supplies :3
oh, smoke alarm and fire extinguisher too! people are always smoking in abandoned buildings, burning them down
wtf??? Why would you do stupid shit like this ;-;
but yes this is essential then. It’ll be sooo much work to get that to the place of a save shelter, while remaining stealthy omg ;-;
I think this is critical. People are going to cook and heat in there, and may use fossil fuels rather than electricity. I’d be more concerned about having a CO sensor than CO2.
Never Forget: https://old.reddit.com/r/legaladvice/comments/34l7vo/ma_postit_notes_left_in_apartment/
Electricity is safer to cook with if the building has access to it. Small counter top induction hobs and electric pressure cookers are pretty safe these days especially in comparison to anything with an open flame.
I don’t disagree, but I also wouldn’t make assumptions on what people might choose to use.
Worse still, the electricity might get shut off, which will kill the sensors and powered ventilation and electric cooking & heating. I don’t have a quick & easy answer to that.
I’ve seen a letter on the fence that says, the electricity will be shut down for a couple of hours at xx.xx.xxxx. So I assume that it has electricity. However, I don’t know how safe to use the electrical wires inside the house are. Its been abandoned for 20 years after all.
Is there any way I can check this? Because supplying batteries would be possible, but continuous work (bad because I might move at some point). Else I might be able to wire up something myself Idk.