Thank you!!My 2000 silver B has the same cookbox and burners as a Silver C. It's been a while but I recall the front burner only on low would run about 275. To get lower I'd have to prop open the lid a little.
I think my deep box 1000 runs a little cooler with one burner on low than my silver B did.My Deep box Genesis runs around 225-250 with front burner on low.
That will vary with ambient conditions (wind and temp)Well I was able to reach 250 degrees with just the front burner set at medium thanks all!