Compact
Garage comfort
Mini Split for Garage
Bring reliable year-round heating and cooling to your garage without extending your existing ductwork.
- 1-car
- 9K-12K BTU
- 2-car
- 12K-18K BTU
- Workshop
- 18K-24K BTU
BTU sizing guide
Start with Your Garage Dimensions
Use our recommended BTU range based on width and ceiling height.
A Smart Starting Point for Sizing
Garage size is only the first step. Final sizing should account for insulation, ceiling height, sun exposure, door usage, local design temperatures, and professional evaluation.
Choose by use
How Will You Use Your Garage?
How you use your garage helps determine the right comfort level. Choose the option that best fits your needs.
Everyday use
Standard garage
Reliable year-round comfort for parking, storage, projects, and regular household use.
Start with 9K-12K
Higher activity
Garage gym
Plan for body heat, equipment, humidity, and the hours you actually train.
Compare 12K-18K
Higher load
Workshop
Frequent door openings and heat-producing tools can require more capacity.
See workshop sizing
Large or divided space
Storage-heavy garage
Shelving, partitions, tall ceilings, and blocked airflow all affect the final fit.
Review 18K-24KRecommended systems
Garage-Ready Della Mini Splits
Reliable comfort solutions selected for popular garage sizes and everyday use.
Cold-climate pick
DELLA Optima Series 12000 BTU 23 SEER2 Ultra Heat Mini Split AC (R-454B) - Up to 550 Sq.Ft.
- Garage fit
- 1-2 car
- Capacity
- 12K BTU
$914.96
Compact garage
DELLA Vario Series 9000 BTU 20 SEER2 Mini Split Heat Pump AC - Up to 400 Sq.Ft.
- Garage fit
- 1 car
- Capacity
- 9K BTU
$729.96
2-car garage
DELLA Vario Series 18000 BTU 21 SEER2 Mini Split Heat Pump AC - Up to 1000 Sq.Ft.
- Garage fit
- 2 car or gym
- Capacity
- 18K BTU
$1,049.96
Large shop
DELLA Vario Series 24000 BTU 21 SEER2 Mini Split Heat Pump AC - Up to 1500 Sq.Ft.
- Garage fit
- Large or high load
- Capacity
- 24K BTU
$1,499.96
Free shipping
Fast standard delivery on eligible Della systems.
30-day returns
A straightforward return window for eligible purchases.
24/7 live support
Get help with product questions and installation planning.
Quick answers
Everything You Need to Know About Garage Mini Splits
Get fast answers about sizing, installation, insulation, and cold-weather performance.
Can a mini split heat and cool a garage without ductwork?
Yes. A ductless mini split can heat and cool an enclosed garage without adding or extending ductwork. The right capacity still depends on insulation, climate, ceiling height, and how the garage is used.
What size mini split do I need for a 2-car garage?
Many insulated 2-car garages fall within a 12,000–18,000 BTU starting range. Larger spaces, high ceilings, poor insulation, frequent door openings, and strong sun exposure may require more capacity.
Can a mini split heat an uninsulated garage?
Yes, but comfort and efficiency may be limited. Air leaks, uninsulated doors, and exposed walls increase heating demand, so improving the garage envelope can help the system perform more consistently.
Which mini split is best for a garage in a cold climate?
Choose a model with a published low-temperature heating range that matches your local winter design temperature. Also compare heating capacity at low outdoor temperatures, not just the nominal BTU rating.
Build your garage comfort plan
Ready for a garage that works in every season?
Start with the 12K collection, or compare 18K options for larger and higher-load spaces.
