That used to be a much bigger deal in the US back in 1975. Our house had a coal bin and a coal fired boiler at that point. Insulation was non-existent in many

That used to be a much bigger deal in the US back in 1975. Our house had a coal bin and a coal fired boiler at that point. Insulation was non-existent in many places. With almost 50 years of construction differences, moving that thermostat saves much less energy nowadays.