Since we already had soil heating cables for the greenhouse, I tried one around the extractor last year and was pleased with the results. Have also successfully used heated grow mats wrapped around the HFCS to liquify it. I think it would work well to liquify honey too. In the past I had also used an old electic blanket and that worked really well too. I'd use it again, but can't find it. It's really great when you can find multiple uses for things....especially if you are a frugal pennypincher like me!
Buy locally, buy only humanely raised animals, eat in season, keep bees!