I grew up in a house with no central heating and the whole family survived every winter.
Same here. An entire 3 bedroomed house, with separate dining and sitting room, kitchen, walk-in pantry, hallway big enough to use as an office or a study ... was heated with ONE open fire in the sitting room. Jack Frost drew wonderful curlicued pictures on the inside of the windows overnight ... No wonder most people didn't need a fridge.
We had a pig lamp in the bathroom - oh what a luxury that was considered to be! Before the advent of the pig lamp, there'd been a paraffin heater in there which had to be very carefully attended to, the colour of the flame double-checked regularly and the window had to be kept open, which almost eliminated any warming effect from it. But my parents were very safety-conscious.