"Jason Nash" wrote in message
oups.com...
We've had our Weber Silver A for several years so I'm sure it's time to
replace a few parts. The problem we're having is that with all three
burners on high it takes a long time to even get up to 350 degrees. It
used to be the grill heated up too fast, now we can't get it hot enough
at times. The propane tank is full. No kinks in the hose.

New burners? Something else?

Sounds like the flow restrictor in the regulator has kicked in. Usually the
manual has instructions on how to deal with this. On the Weber site at
their gas grill FAQ they give instructions on how to remedy this
http://www.weber.com/bbq/pub/support/gasfaq.aspx