My husband and I are in the process of buying our first home. The 1885 approx 1500 sf 2 story Colonial house is in NW metro Boston. From an HVAC standpoint, our priority is to insulate the house (there is nothing now) and add heat to the rooms lacking it. It is not clear why the half bath and the office lack heat but I do not want to continue the practice of electric plug in heaters in the rooms.
Our next priorities are:
- to address the older heating system. The house has an ~25 year oil boiler for forced hot water heat with cast iron radiators and inline DHW.
- to add central AC. While we don't get a ton of super hot days (this year was an expection), my husband has allergies and drier cooler air is better for him.
- to switch to a gas system. It is available at the street, not brought into the house yet.
- provide an energy efficient, as possible, solution
My husband wants to keep heat and cooling systems separate and install mini-splits for AC but I don't like the look of wall mounted boxes on the walls and I think that buying a bunch of units would be more expensive first costs and long time costs than a central system. My question for the board is, do I just add a duct system for the AC and keep it separate from the heating or do I change the heat to forced hot air? If everything was forced hot air, I wouldn't be able to have radiant heat in the bathrooms which would be really nice.