Four months after having our furnace replaced, we'...

Four months after having our furnace replaced, we're still having issues with it and keep getting incorrect or confusing information from the techs that visit. They tried and failed to replace the thermostat twice. The latest idea is that the furnace is overheating, which is something I think they should have figured out when doing the installation. The owner gets involved and it seems like things are going to get better, but then another tech shows up with more bad news. Decided it's been long enough to leave a review, so here it is.