European listmembers can add more to this as they have to deal with
differing gas mixes around the continent. One thing I found out (with
help from this list and the IG16 forum) is that Euro westies are often
fitted with an electrically gas reg/valve deicer to deal with icing
problems occurring with other gas mixes.

alistair

On 4-Jul-11, at 11:42 AM, Dave Mcneely wrote:

> ---- Kim Brennan <kimbrennan@MAC.COM> wrote:
>> You get more heat out of propane than you do out of natural gas.
>>
>> On Jul 4, 2011, at 1:52 PM, ralph meyermann wrote:
>>
>>> Hi all i've noticed in my Omaha area more adds and car offers with
>>> the
>>> compressed natural gas options. I think the stove may work better
>>> with the
>>> correct psi regulator Im wondering on the fridge anyone else
>>> wondering or
>>> has looked into this?
>
> Methane (natural gas is nearly pure methane) is a much lighter
> molecule than is propane  (molecular weight 16 vs. 58).  It would
> therefore have much higher pressure and require higher pressure
> storage and delivery equipment on the vehicle.  Not just the
> regulator, but the tank and valves as well must be different.  The
> stove and refrigerator burner would have to be refitted with
> appropriate orifices as well, for proper mixing with air.  Though
> home appliances that burn one or the other can be had, they can do
> so only if changes to the valves and orifices are made.  Without
> these changes, not only would the fuel not burn at the proper
> temperature and rate, but it would not be safe to use.
> McNeely