Do check whether any internal switch is for energy saving, or as a safety switch to protect the heater.
Do not go removing safety features! Get an already safe heater, which will not explode or leak if heated above 35 degrees.
There are also several varities of STC1000 controllers. They are not all the same. Some have two sets of contacts, some only one. Some will operate both heating and cooling automatically, but others need manual selection, if changing the mode. Some have contacts rated at 5A, and others at 10A. Some are 240V but some are 110V.
Obviously most of the above is irrelevant for a low power heater, but future use might alter your current choice, so the cheapest may not be the a satisfactory choice.
An ATC800 would be sufficient (given the right ratings) if they are still available. Another alternative might be a high temperature vivarium heater thermostat, sometimes available on the usual auction site.
If you require even better heat control there are 'dimmer' type controllers that vary the power to the heater rather than an on-off situation. Not really needed for heating honey unless the heater has a much higher rating than mentioed above.
Mine are used for temperature control during wine fermentation and storage, so I need auto heating and cooling plus the heavier contact rating for starting a fridge compressor.
