My parents put in central heating when I was about 5 in the 1960s. I remember it vaguely - it certainly made a difference to the house and no coal fires.
Now we don't have the heating on at night and I always sleep with the window open no matter what the weather but my house is warm, big house, big heating bills but warm in the day. I watched a video on youtube about the big freeze of 1963 recently - very interesting BBC programme made at that time and it also mentioned the 1940 winter that was so cold, when my mother was living at her teacher training college - that was a really cold winter. "THE frost which began on December 27, 1939, and continued with few intermissions until about February 18, 1940, was the most severe in Great Britain since 1895. December 1939 was cold on the whole, the average temperature of 37·8° F. at Kew being nearly 4° F."
Here is the 1963 summary
"The winter of 1962–63, known as the Big Freeze of 1963, was one of the coldest winters (defined as the months of December, January and February) on record in the United Kingdom. Temperatures plummeted and lakes and rivers began to freeze over. In the Central England Temperature (CET) record extending back to 1659, only the winters of 1683–84 and 1739–40 were colder than 1962–63. The winter of 1962–63 remains the coldest since at least 1895 in all meteorological districts of the United Kingdom except Scotland North, where the two winters of 1978–79 and 2009–10 were colder."