At 13:59 4/28/2000, Davidson wrote:
>Bob,
>I imagine you could splice a T into the copper propane lines that would
>allow you to hook up a portable propane tank.... but why would you want to
>do this? and.... remember the portables are not supposed to be used indoors
>near an open flame.... that's because they have pressure relief valves that
>could open... spewing propane out into the air!

Nuh-huh.  That would put 100 psi or so into a system designed for about 1/3
psi.

You have to either supply a two-stage regulator with output at 11" WC
(water column, about 6 ounces per square inch), or tap in upstream of the
existing regulator.  There is a product called Extend-a-Stay which will
parallel the built-in tank with a BBQ tank, so you can draw vapor off the
BBQ tank while you're staying put.  I don't know whether it shuts off the
main tank at the same time -- if not the main flow would come from
whichever tank was warmer.

Just incidentally, a 16-oz (the wide stubby kind) propane tank would run
one burner about 4 hours.

david
David Beierl - Providence, RI
  http://pws.prserv.net/synergy/Vanagon/
'84 Westy "Dutiful Passage"
'85 GL "Poor Relation"