It’s entirely possible to supplement the heat in a beehive, and the Bitaxe would be perfect for the job, but it has to be a delicate balance. The challenge with supplemental heating is that it also impacts humidity, which can just as easily doom a hive in winter. The key is subtle supplementation. I know beekeepers in extremely cold climates who have done everything from surrounding hives with hay bales for insulation to housing them in massive barns. We currently have a supplemental heating project in development using our Bittyaxe design and solar, with plans to upgrade to the Hashdisk for the final build.