Rant: After having no reliable heat since sometime early Christmas morning, an electrician came today and quickly discover the issue. When the “professionals” installed my HVAC 3.5 years ago, they installed a unit that uses >30 volts on a line that’s only rated up to 30 volts. When the system was in regular use, it would burn up the wire and trip the breaker. It’s a miracle the damn thing didn’t start a fire.