I wouldn't burn it. Is there plastic foundation, is it wired, what's in the frames? I helped a guy I work with turn a half dozen hives that had been inactive for at least 30 years back into action with little effort. They'd been cleaned out via wax moths that left webs, frass (poo, that looks like caterpillar droppings), and cocoons all over the place. Easy stuff to clean out. Even if you've got nothing but frames, you can put various foundations or starters in them and inexpensively move forward. If you're concerned with transmissing American Foulbrood flash hit the frames and boxes with a blow torch.