We finally picked Kingston up today! He's been doing great so far. A lot of napping. He ate lunch, peed once and I didn't even notice til I saw a puddle. He is everything I wanted and more! He is playful and so friendly. He has such a cute face too! I already saw at least a dozen yorkie head tilts today

He loves his new bed and his favorite toy is this petstages toy I got for him that makes a crinkle noise. I put in the freezer last night. Right now he's moved on to a free frog toy we got from Tinkerbell's Closet.
I love my breeder! She is so nice. She sent me home with his favorite toys, a baby blanket with his fur-mom's scent, his favorite treats, a lot of food, and a ton of other stuff. She gave me his AKC registration papers, some tips, a long list of Kingston's quirks and favorite things to do, and vet records.
However there is one problem that can't be solved until the end of August - early September and that is the
heat. It is super hot in my apartment right now. Our central AC is broken and we've been trying our best to keep him cool with fans and frozen bottles of water. He napped next to the bottle and licked the condensation when he woke up. I think it's still too hot in here. What can I do to keep him cool? What are the signs of a heat stroke? I know that they pant when they're thirsty or hot. I don't want him to have a heat stroke.
We also have a vet appointment early tomorrow. Anything specific I should ask or expect on a first visit?
Attached are some pictures of him. I TRIED to get a good picture, but he kept moving. I also took some video of him which I'm in the process of uploading.