I have the dual version of the one pictured just above, and it only puts out a bit more than a Coleman stove. The Turkey fryer version at the top has a much higher regulator and sounds like a blast furnace when it runs. Use them lots to heat water, not just fry turkeys. They get glowing red too but I've never had a problem with it. I hate the new ones with the timers and the safety valves but I'm not sure the old basic ones are made anymore.
Actually looking at the top one pictured I don't see all of that safety stuff. Probably a good one.
Most stainless hoses are actually the stainless covering over a rubber hose for protection. They will still be stiff.