Single-Zone vs. Multi-Zone Mini-Split Systems Compared

https://storage.googleapis.com/mass-hvac/uncategorized/seer2-ratings-explained-comparing-high-efficiency-ac-units.html

Ductless mini-split systems have become one of the most common HVAC choices in Massachusetts — particularly in older homes where installing ductwork is expensive, disruptive, or structurally impractical. But the category is not monolithic