you call this clean?

Though Consumer Reports had remarked about the Wolf dual-fuel ovens’ lackluster self-cleaning (model number DF304 – 30″). I took that as requiring just a little more effort on my part. I should have listened.

The images tell the story. There is just lots of stuff that will not come out if run throught the self-cleaning cycle. On page 42 of my manual it states: “Never use oven cleaners. They are not necessary with the SELF-CLEAN mode.” What am I supposed to do, live with huge black stains?
Dirty Wolf Oven Interior

Dirty Wolf Oven Interior

are there any benchmarks on how fast ovens heat up?

Are there any benchmarks on how fast ovens heat up?

I did a bit of searching online and came up with nothing.

The reason I pose this question is that I recently purchased a Wolf 30″ Dual Fuel Range (Model DF304) and the oven takes much longer than our old cheapo range to heat up. For instance, it takes 15 minutes to get to 350 degrees (starting at room temperature) and another 5 1/2 minutes to get to 425.

21 1/2 minutes to warm up a high-perfomance range?

Is this normal?

Am I overly impatient?