I'm sticking with my "primitive" solar wax extractor---I don't know if it's any better, but it is certainly convenient to drop all those little chunks of wax collected on my visits to the hive. Since they get melted down right away, there is no fear of wax moth development while witing for enough to accumulate to justify a big pot being put to use. Then again, my solar energy bills are very low, to say the least.