Hi Ehsan, thank you for your time to write this review. First I apologize for the inconvenience. We have never had any problem with the temperature of the house before. You are actually the first guest that say the basement is hot. I was surprised. In fact, i always worry that the basement is cold at night because usually the basement apartment is colder. The vent was all closed because our guests that stay the night before say they feel cold so they closed it. We have accommodated many guests that check-in during the hottest day of June,July where the temperature outside is up to 45 degree, the house is absolutely cool and chill and all our guests are very happy. We have central AC blasting cool air 24 hour, monitored by NEST thermostat so when the house is cool enough, it will stop running then running back again when the temperature rise. And also you stay with us on the 28 July, 2018, the temperature of that night was 17 degree. That could be the reason why when you open the vents, there is no air coming out. You were not at the mercy of the people upstair, this is false. The temperature is manage by me. This problem and the coffee mugs could be solve right away during your stay with us if you could have just message me about it. But you did not reach out to me so i wasn't aware. Communication is key. Thank you for staying with us.