The Post Quartermaster wrote:
I was told that one must use different size flexible hose for
different appliances. We're talking propane, and I guess it would be
the same for natural gas. The theory was that a certain appliance,
stove for instance, uses more gas and thus needs a larger hose
(connector size mayber????) than a space heater etc. It seems to me,
as I just bought all the same type and size for everything --- not yet
hooked up--- that it would be the individual orafices in each
appliance that would govern, not the dang hose. Any thoughts?

yes. they are right. a particular appliance might need more gas than could
be supplied with a smaller hose. it will say in the instructions what is
required.