I booked this room for 1 month but I had to cancel my booking just over 2 weeks into my stay due to a carbon monoxide scare. A few days after I arrived, the host informed me that there was an ongoing fault with the boiler. A couple weeks later, I prepared lunch using the gas stove and had a shower (which activates the boiler) shortly after. A little while after this, I started feeling dizzy and faint. Around the same time, the host's cat was vomiting. I was concerned there was a carbon monoxide leak because 1) faulty boilers can cause this, 2) dizziness/faintness are symptoms of carbon monoxide poisoning, 3) the cat was vomiting and 4) after I opened all the windows and front door to air out the flat, I started to feel better. I called the free national gas service to check for a leak and, as a precaution, they turned the gas supply off and said the appliance should be checked by a gas safe engineer. I told the host I wasn't comfortable staying, and cancelled the booking.