A lot is going to be dependent on your age. Most have 30day exclusion and 60 day for critical illness. Be prepared with medical records for anything you might be taking a prescription for. Also be prepared to have all documents translated from Thai.
unfortunately most don't have the discipline to do at a young enough age to be able to cover costs of a catastrophic illness or injury (including medication).
Are they 220v appliances? Heating devices (high amperage) that are designed for 110v but running on 220v will draw more current than you expect. Verify that the plug is the round 220v plug. Do not buy and use an extension cord that is rated higher wattage than the socket.