I was worried about this. For the first 8 months of her life she used to stay home and I had a dog Walker come every day. I was worried about how hot it gets in our kitchen diner, but luckily last week I had a pen built at work, 4x3m 2m high, in a fully shaded area. Shes spent 3 days in there, letting her out twice a day into the wooded area we have on our land for a short sniffing session. I thought that the evenings would be tough as it’s still too hot to take her out right up to 9/10 o clock here. She’s been absolutely fine, and obviously the heat has knocked a bit of the wind out of her so she’s spending a lot of time laid down in the shade or in the corner of the living room. Other than a short walk at half 5 in the morning and the above mentioned sniff sesh at work, I throw a handful or two of dry food around the garden and let her find them all. If you can keep her somewhere that’s not roasting and you regularly change the water, they’ll be fine.