I have a 1600sqft one floor house with full basement (Ranch house?) in MA. Now I have only one zone for the frist floor which have two bedrooms, living room, family room, dinner room and kitchen. Basement is not heated. Now I am planning finish the basement which is the same size of the first floor with 1600 sqft. Another bedroom, bigger entertainment room, exercise room and ... will be added on the basement.
Basement will be heated then. I am thinking have 3 zones in tatol for the entire house for
living room & family room,
How you will zone your house if you are in my situation? My boiler is 2 yrs old and its capacity is good enough for the new additions.