Not to sound like an ass here or anything, but you do realise that you're in the bodybuilding section right?
Am I reading your stats right;
6 foot 1
And you're worried about conditioning/fat burning??
Put more weight on, then you'll get stronger/bigger.
To get more on track with the thread topic, yes, high volume training for legs works well (typically done along with a high intensity/heavy set...which does not interfere with strength gains unless you were doing too much and not recovering from it).
But to be clear; you need to get your goals focussed more. Weight training is for getting stronger/bigger/maintenance, not cardio or whatever. That is, if you are bodybuilding.