The Old 19°C Rule Is Finally Dead — Experts Reveal the Indoor Temperature That Actually Works
For decades, 19°C has been treated as the gold standard for home heating. Energy advisers repeated it. Governments promoted it. And millions of homeowners turned down their thermostats and quietly shivered through winter in the name of efficiency. Experts are now saying that advice was wrong. Not slightly wrong. Fundamentally wrong. And the new recommended…