Ventilation
I've got a 6 x 14 enclosed trailer that I've built out inside as a travel tailer. It has one of those roof vents that is the standard crank vent on the roofs of these trailers. I've got the trailer sealed air tight, so it's the only vent..
In the summer, I leave it cracked about 4-5 inches for ventilation. I have a little window shaker and it keeps the trailer nice and cool even during the day. The ac does not exchange air with the outside.
The cool air sinks, so I don't worry about the vent at the top. I've noted no ill effects, so I'm obviously getting enough air exchange.
In the winter, however, I'm a bit more concerned because the heat rises, and the vent at the top may make it very cold inside and make heating difficult. So I'd like to have as small a hole as is safe, in order to conserve heat.
So the question would be theoretically, if you had a man in a sealed box, how large of a hole would you need to support air exchange? It wouldn't be the lack of oxygen that's the immediate issue.. it would be the buildup of CO2 inside, which would kill you long before you ran out of air.
Any input appreciated.
In the summer, I leave it cracked about 4-5 inches for ventilation. I have a little window shaker and it keeps the trailer nice and cool even during the day. The ac does not exchange air with the outside.
The cool air sinks, so I don't worry about the vent at the top. I've noted no ill effects, so I'm obviously getting enough air exchange.
In the winter, however, I'm a bit more concerned because the heat rises, and the vent at the top may make it very cold inside and make heating difficult. So I'd like to have as small a hole as is safe, in order to conserve heat.
So the question would be theoretically, if you had a man in a sealed box, how large of a hole would you need to support air exchange? It wouldn't be the lack of oxygen that's the immediate issue.. it would be the buildup of CO2 inside, which would kill you long before you ran out of air.
Any input appreciated.
