
At What Temperature Should You Turn on the Heat?
Changes in weather and climate conditions lead many homeowners to ask the simple question, at what temperature should you turn on the heat? Before you switch on the furnace, there are many things to consider. Let’s find out the optimal temperatures to turn on the furnace. Day Temperature According to Energy Rates, the ideal temperature for the day is 20° Celsius (or 68° Fahrenheit) when you are at home during daylight hours. Night Temperature You should adjust your thermostat between 17 and 19 degrees Celsius