How high can you set your home’s thermostat? If your thermostat and heating system are like most, the upper setting is 90°F. That means, in theory at least, you could turn your house into a hot day at the beach even during the middle of winter. That probably doesn’t sound appealing to you, but a nice 80°F may sound ideal. You can lounge around in your shorts in perfect comfort. In January!
But … please don’t do this. Our recommendation for winter thermostat settings is to lower the thermostat, not raise it. As the temperature outdoors drops, you’ll feel tempted to push up the thermostat setting higher each time you feel too cold, and then lower it when it gets too hot, but this isn’t the best practice for energy costs and the performance of your heating system. We’ll explain more below.
We never want to alarm our customers, but it’s an important part of our job as HVAC experts to let them know about potential harmful problems that can occur. The more you know about possible hazards with your gas furnace, the better you’ll be able to recognize when you need to call us for professional 
