Forum Discussion
westend
Jun 18, 2016Explorer
I made one for 2 X 6 V's that sits inside my TT. Basically, a plywood box lined with FRP, a weatherstrip gasket on the top, and a 3/4" reinforced tube for vent. All is well sealed with caulk and painted.

Even managed to keep the cowboy theme:

Edit: BTW, I did some researching on the volumes of gas that are created during charging. There is basically very little hydrogen produced and since it is much lighter than the atmosphere, moves quickly to the top of any containment. Your 2" vent will be more than adequate. You won't need too many or large holes to introduce the makeup air to the box. The hydrogen will vent and drag in available air through a very small hole. I used a 1/4" hole toward the bottom, opposite of the exhaust.

Even managed to keep the cowboy theme:

Edit: BTW, I did some researching on the volumes of gas that are created during charging. There is basically very little hydrogen produced and since it is much lighter than the atmosphere, moves quickly to the top of any containment. Your 2" vent will be more than adequate. You won't need too many or large holes to introduce the makeup air to the box. The hydrogen will vent and drag in available air through a very small hole. I used a 1/4" hole toward the bottom, opposite of the exhaust.
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