Hey everyone! I'm struggling with keeping the second floor of my over 100-year-old home in Ontario cool during the summer. The upper floor gets significantly hotter than the first floor and the basement—there's no return air on the second floor, which is a common issue in older homes like mine. I've thought about installing a ductless AC, but that's a pricey option. I have a laundry closet on the second floor that vents outside, and I was thinking about putting a fan vent in the hallway near the roof. The idea is to use it like a bathroom fan with a thermostat to help pull hot air out of the upstairs. Is this a crazy plan or could it actually work? I'm really aiming for a 5 to 7°C drop to help level the temperatures across floors. My home has a flat roof and no attic to ventilate. Would love to hear your thoughts!
1 Answer
Honestly, you might want to consider a window AC unit instead. They're pretty affordable and really efficient these days. We had a similar issue in our 100+ year old brick house in Ontario. We put a window unit upstairs and it helps a ton, plus you can often program them to run when it’s cooler outside at night, which really helps balance things out. It might not be perfect, but it’s a solid and budget-friendly option before jumping into more expensive fixes!

Totally agree! We went the window unit route too. It's not the fanciest setup, but it does the trick without breaking the bank. It's definitely worth a shot!