Good post, thank you. At the end one is responsible on what gets put on one's passport, and it is not possible for the official to be 100% correct always. Due dilligence is in order.
it can get cold in the northern provinces, Chiang Mai, Udon Thani... and have seen pics of villagers wearing jackets, but I have never seen, neither in the city nor countryside, any kind of heating device in use at home or for sale at the store. There are laundromats with clothes dryers. There are also pizza restaurants and bakeries with ovens, but have never heard or seen of an oven at home. BBQ pits are common, both elaborate ones, and small simple ones as the locals use them for cooking, but outdoors only. Usually wood brickes is sold at the stores. This last part is popular and you can see folks BBQ on the side of the road selling BBQ chicken, pork, etc. Even I have a small one, but never for heating.
adjusting from a working life to retirement can take a year or two. I call it "recovering from work", but slowly one realizes there are no deadlines, impatient customers, unreasonable bosses, etc. It's not hard to let go of the routine and even one's own expectations. The reality sets in... we are free till Kingdom comes.
I regret I have no experience or know about dehumidifiers. In the rainy season, we could not hang clothes to dry outside, so we had to hang them indoors in a clothes rack and have a fan blow on them overnight. The monsoon lasts nearly 6 months and one needs air circulation in spite of humidity.