have a CH boiler on my landing - a Potterton Flamingo 20 -30. I also have
a carbon monoxide alarm across the landing from it and just recently the
alarm has gone off a couple of times. I know the boiler is an old one but,
just off the top of your head, could it be anything simple to fix? (The
flame doesn't burn yellow by the way). At the
moment I really can't afford to have a new boiler fitted.

Also had a look at boilers in B&Q but how on earth do you know which kind to
get?