My thermostat is set at 70. Every few hours I get cold and go check and the temp in the house is closer to 60. If I switch the thermostat off and back on, the furnace kicks on and the house gets up to temp. Then later, it's back down. This is just a bad thermostat right? I'm gonna switch it out tomorrow and hope that fixes it. But it's a newer thermostat, only 2 years old. So I'm just checking here hoping everyone agrees with me. I sure don't want to have to pay for a service call. Man, oh man, I'm hoping one of our HVAC guys doesn't say it sounds like a way more complicated problem.