I just got a new house and am finally settled in with my wife and our two kids. The weather has turned quite cold so it’s time to have the heating system serviced and turned on. The problem is that there is more than one heating system! The home is three stories and is equipped with a new boiler with old radiators and newly installed ductless mini-split units in every single room! I don’t have much experience with heating systems because we moved from a really temperate climate where we basically never had to use the heating system. There’s one thermostat on the first floor that controls the boiler and I can’t really figure out how to program it. We spend hours trying to figure out the individual radiators in each room to make it so that the upstairs floors aren’t hotter or colder than the ground floor. So far, we haven’t had much luck. I don’t know how to do this efficiently. I suspect that the mini-split heaters are going to be more expensive to run than the boiler, so I don’t understand why the previous owners had them installed in so many rooms. When we bought the house, the realtor would not stop raving about the comprehensive heating system installed in the house. It sounded great to us, until we realized how much money we would be spending on our energy bills during the winter months. I might have to call an HVAC technician in to help me understand the new heating system. The last thing I need is a heating bill that is more than my mortgage!