Why Mini-Splits Are Perfect for Iowa Garages and Additions

The Ductless Solution for Tricky Spaces

Got a garage workshop, sunroom, bonus room over the garage, or a home addition that's always too hot in summer and freezing in winter? You're not alone. These spaces are notoriously hard to condition with traditional HVAC systems. That's where ductless mini-splits shine.

What Is a Mini-Split?

A mini-split is a compact heating and cooling system with two main components: an outdoor compressor and one or more indoor air handlers mounted on the wall or ceiling. They're connected by a small conduit (refrigerant lines, power cable, and drain) that requires just a 3-inch hole in the wall. No ductwork needed.

Where Mini-Splits Excel

• Garages and workshops: Finally work on your projects year-round without freezing or sweating.
• Sunrooms and three-season porches: Convert them to true four-season spaces.
• Bonus rooms and attic conversions: These spaces are often disconnected from the main duct system.
• Home additions: Avoid the expense and complexity of extending existing ductwork.
• Older homes: Homes without ductwork can get efficient heating and cooling without major renovation.

Efficiency That Saves Money

Mini-splits are among the most efficient HVAC systems available, with SEER ratings up to 33 and HSPF ratings up to 14. Because there's no ductwork, there's no duct loss — which can account for 25–30% of energy waste in traditional systems. You only condition the space you're using, which is inherently more efficient.

Multi-Zone Flexibility

A single outdoor unit can support multiple indoor units, each with its own thermostat. This means the bedroom can be 68°F while the living room is 72°F — true personalized comfort. Mitsubishi, Daikin, and other leading brands offer systems with up to 5 zones.

What About Iowa Winters?

Modern cold-climate mini-splits (like the Mitsubishi Hyper-Heat) maintain full heating capacity down to -13°F and continue operating at reduced capacity to -22°F. For Central Iowa, that covers even the coldest nights.

Trade Allies Heating and Cooling is a certified installer for Mitsubishi and Daikin ductless systems. We'll assess your space and recommend the right solution. Call (515) 669-4481 for a free estimate.