Sure enough, as soon as the weather got really cold, people with condensing boilers were finding that they broke down. As the temperatures plunged well below freezing in the middle of the day, these modern, expensive boilers that are now compulsory because of EU energy policies and regulations, went wrong, malfunctioned and cut out, leaving people with no heating. I know this happened to some people in their eighties and nineties, and for them the cold can be fatal. Condensing boilers are over-complicated and unreliable. They only last for about seven years anyway.
Meanwhile, people with ancient boilers thirty years old or more, dating from the period when boilers were built like tanks, are warm and cosy.
So if you've got one like that, the most environmentally minded policy seems to be to hang onto to it for dear life. Literally, as it may turn out.