If I hadn't called Transco last night, we could have been killed by Carbon Monoxide fumes.
When I got home, there was a 'fumy' smell and the air just didn't feel right. Even though I knew it wasn't gas, I called the emergency Transco number. The upshot is that a defect in te boiler and in the flue were causing fumes and serious amounts of Carbon Monoxide to escape straight through the floorboards into the spare bedroom, which is also my workroom. I am sleeping there atm as I am working late at night and v early morning, and tend to keep the door closed.
We moved in in Spring, and the previous owner signed a thing to say he had had the boiler serviced last winter, we were planning to 'get round to it' again this year when the post Xmas finances had recovered.
If you haven't had your boiler serviced this year, DO IT NOW, and if you smell fumes, get help.
Luckily we have an immersion heater, but it's going to be a very chilly few weeks til we can get a new boiler installed!
Better Chilled than Killed!