I don’t have a honey warming cabinet but I do have a steam oven. It has a special setting for decrystallising honey (German), 60C for one hour. I then plunge the jars in cold water for a few mins and bring it quickly down to room temperature. Similar to Doug Brown’s recommendation in the Sheffield tables. Works a treat. Honey stays runny for several months afterwards and no change in flavour. Plus produces lovely steamed greens (at 100c!) too