Thanks for the responses.
Beenthere, could you elaborate on the analyzer? When I originally built the house in 2005 I had issues with the furnace getting hot enough. Finally the owner of the company (that is now out of business) came out with a manometer and said they installed the orifices but didn't raise the pressure for LP. His analyzer was the temp probe on his Fluke.

I'd like more details on this so I can make sure the contractor I choose will do the job right.
Also does the price sound fair?