Our oven is dead center in our living space - so all the heat from it sits right in the middle of the room - thus we hate turning it on if we don't have to.
I can understand that! We've had that in a few places we've lived.
When we were younger, DH and I both worked together at a cabinet factory. That place got SO hot inside. They didn't have AC and only had a few fans (because in certain areas fans were not a good thing as they could cause bubbles in the finish, etc.). The building was a big metal one and that place heated up so fast. The machines we used put off heat too which made it get hot even faster inside. On top of that, we worked the 3 to midnight shift so it was already mid-day hot when we got there. We carried a big cooler full of ice with us to work, added some water and soaked towels that we wore on our heads/necks to help stay cool. It was rough.
Because it was so hot at work, we didn't turn our AC on at all during the week. We turned it on on Friday right before we went to work and we turned it off on Sunday night before we went to bed. We were able to tolerate the heat a lot better than our friends who went from a cold house to a cold car to an oven of a building without giving their bodies time to adjust. We used fans at home and kept windows open for ventilation and it was bearable, but then again, we were in our early 20's too.

Anyway, we didn't COOK anything during the summer. It was just too hot in the house to add to it. We ate tons of salad, cold sandwiches, fruit salad, etc. From May through September the only hot meals we ate were either at my grandma's, a restaurant or something we grilled.
Looking back, gosh, I don't know how we did it. Pretty much every day someone passed out from heat exhaustion at that place. We probably drank 2 gallons of water while we were at work (between DH and I) and we switched out our clothes every 30 minutes or so. We also bought those neck cooler things that swell when you get them wet and we would partially freeze those to use.