Our place in Bangkok and location of everything meant was sitting in the wind. Do like these units can start 20 minutes (or whatever you like) before getting home so nice and cool
Extend your visa (entry stamp) for 30 days (depending on passport) or do a border run.
You can pay overstay at airport but if you get stopped and found without a valid entry stamp during those ten days. You can be arrested, deported and banned from entering Thailand
look on you tube, its actually very comfortable. Got these for our place in Bangkok and thats not particularly big and dont like the cold air blowing directly on us
Samsung is good, we just bought the windfree for same reasons and lot cheaper buying direct from Samsung. Check on you tube there is a guy on there does reviews of electrical reviews in pattaya. HIs videos are interesting. Search for samsung windfree AC reviews thailand and should find it. And electrical usage easy to monitor on app with eco mode as well
We just got the Samsung windfree which is really good. The price difference buying directly from Samsung thailand website was massive compared to shops.