Estimate the heating and cooling load for your home to find the right HVAC system size in BTUs and tons.
Home Details
Climate and Exposure
Hot = southern states. Mixed = mid-Atlantic, plains. Cold = northern states. Very cold = Minnesota, Canada border.
High exposure means large south or west-facing windows with minimal shading.
Insulation and Construction
Poor = older home with little insulation. Excellent = modern construction with high R-values throughout.