Not Friday, but you guys have gotten away with it, so shoot:

I know that lots of homes use propane for heat and other functions.
Many of these homes have basements.  What provision is made to keep the
gas from accumulating in the basement?  Seems that would be highly
undesirable.  Dave Mc

On Mon, Jan 11, 2010 at 12:07 PM, David Beierl wrote:

> At 01:38 AM 1/11/2010, Doug Noganav wrote:
>> Big no no on a boat too cuz of the heavier than air issue and no way
>> to
>> escape.
>
> Actually quite a few boats use LP gas for cooking -- I think in
> Europe it's more likely to be butane or maybe compressed methane
> (both lighter than air).
>
> But there are lots of details to take care of -- bilge ventilation,
> solenoid switches to open the lines, enclosed outside storage in a
> space that will drain vapors over the side, bilge gas detectors and so
> forth.
>
> Gasoline vapors are also heavy, so boatmen have been dealing with the
> issue for getting on a hundred years, punctuated by the occasional
> deflagration when someone neglects to run their bilge blower before
> starting up.
>
> Incidentally, since I've been living in RI (since '92) there have
> been two for sure and I think three houses in the state that
> disassembled themselves because of gas explosions.  I forget whether
> city gas (light) or LP (heavy).  I'd never heard of one before while
> living in Maine, New Hampshire, Maryland, Massachusetts, New York and
> Florida, so I'm impressed.
>
> Yrs,
> David